BALANCING CHEMICAL EQUATIONS - …msbotticelli.weebly.com/uploads/1/6/7/6/16766594/ch_3... · Web viewPart I: Complete the word equation and write the balanced chemical equation

CHEMISTRY - CHAPTER 3: EQUATIONSCHEMISTRY - CHAPTER 3: EQUATIONS

BALANCING EQUATIONS: FORMULAS GIVENBALANCING EQUATIONS: FORMULAS GIVEN Practice Sheet #1Practice Sheet #1

Balance the following equations:Balance the following equations:

1. 1. Al Al ++ NN2 2 → → AlNAlN

2.2. FeFe + O+ O22 → → Fe Fe33OO44

3.3. CaCOCaCO33 → CaO + CO → CaO + CO22

4.4. NHNH44NONO33 → N → N22OO + H+ H22OO

5.5. KIKI ++ ClCl22 → KCl + I → KCl + I22

6.6. Pb(NOPb(NO33))22 + HCl → PbCl+ HCl → PbCl22 + HNO + HNO33

7.7. BaOBaO22 → BaO + O → BaO + O22

8.8. AlAl + H+ H22SOSO44 → Al → Al22(SO(SO44))33 + H + H22

9.9. CHCH44 + Cl+ Cl22 → CHCl → CHCl33 + HCl + HCl

10.10. MgClMgCl22 + NaOH → Mg(OH) + NaOH → Mg(OH)22 + NaCl + NaCl

11.11. AgNOAgNO33 + CuCl + CuCl22 → AgCl + Cu(NO → AgCl + Cu(NO33))22

12.12. ZnS + OZnS + O22 → ZnO + SO → ZnO + SO22

13.13. Na + HNa + H22O → HO → H22 + NaOH + NaOH

14.14. BaClBaCl22 + (NH + (NH44))22COCO33 → BaCO → BaCO33 + NH + NH44ClCl

15.15. CC66HH66 + O + O22 → CO → CO22 + H + H22OO

16.16. Na + HNa + H22O → NaOH + HO → NaOH + H22

17.17. Fe + FeClFe + FeCl3 3 -→ FeCl -→ FeCl22

18.18. Ba(OH)Ba(OH)22 + AlCl + AlCl33 → Al(OH) → Al(OH)33 + BaCl + BaCl22

19.19. HH22CC22OO44 + KOH → K + KOH → K22CC22OO4 4 + H + H22OO

20.20. CC22HH22ClCl44 + Ca(OH) + Ca(OH)22 → C → C22HClHCl33 + CaCl + CaCl22 + H + H22OO

21.21. (NH(NH44))22CrCr22OO77 → N → N22 + Cr + Cr22OO33 + H + H22OO

22.22. ZnZn33SbSb22 + H + H22O -→ Zn(OH)O -→ Zn(OH)22 + SbH + SbH33

23.23. HClOHClO44 + P + P44OO1010 → H → H33POPO44 + Cl + Cl22OO77

24.24. CC66HH55Cl + SiClCl + SiCl44 + Na → (C + Na → (C66HH55))44Si + NaClSi + NaCl

25. 25. SbSb22SS33 + HCl → H + HCl → H33SbClSbCl66 + H + H22SS

26.26. IBr + NHIBr + NH33 → NI → NI3 3 + NH + NH44BrBr

27.27. KrFKrF22 + H + H22O → Kr + OO → Kr + O22 + HF + HF

28.28. NaNa22COCO33 + C + N + C + N22 → NaCN + CO → NaCN + CO

29.29. KK44Fe(CN)Fe(CN)66 + H + H22SOSO44 + H + H22O → KO → K22SOSO44 + FeSO + FeSO44 + (NH + (NH44))22SOSO44 + CO + CO

ch3 chemical reactionsch3 chemical reactions5/14/20235/14/2023

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BALANCING CHEMICAL EQUATIONS - NAMES GIVEN Practice Sheet #2BALANCING CHEMICAL EQUATIONS - NAMES GIVEN Practice Sheet #2

1.1. Potassium reacts with water yielding potassium hydroxide and hydrogenPotassium reacts with water yielding potassium hydroxide and hydrogen

2.2. Chlorine reacts with potassium bromide yielding potassium chloride and bromineChlorine reacts with potassium bromide yielding potassium chloride and bromine

3.3. Zinc + hydrogen chloride yields zinc chloride and hydrogenZinc + hydrogen chloride yields zinc chloride and hydrogen

4.4. iron + water iron + water →→ Fe Fe33OO44 + hydrogen + hydrogen

5.5. zinc sulfide + oxygen zinc sulfide + oxygen → → . zinc oxide + sulfur dioxide. zinc oxide + sulfur dioxide

6.6. CC1010HH16 16 + Cl + Cl22 → → C + HCl C + HCl

7.7. Aluminum + sodium hydroxide Aluminum + sodium hydroxide →→ Na Na33AlOAlO33 + hydrogen+ hydrogen

8.8. CC22HH2 2 + O + O22 →→ CO CO22 + H + H22OO

9.9. Ammonia + oxygen Ammonia + oxygen → → nitrogen monoxide + water nitrogen monoxide + water

10.10. Phosphorus + iron(III) oxide Phosphorus + iron(III) oxide →→ tetra-phosphorus decoxide + iron tetra-phosphorus decoxide + iron

11.11. Cupric sulfide + oxygen Cupric sulfide + oxygen → → copper(I) oxide + sulfur dioxidecopper(I) oxide + sulfur dioxide

12.12. sodium bicarbonate + hydrogen sulfate sodium bicarbonate + hydrogen sulfate →→ sodium sulfate + water + carbon dioxide sodium sulfate + water + carbon dioxide

13.13. Sodium carbonate + silver nitrate Sodium carbonate + silver nitrate → → sodium nitrate + silver carbonate sodium nitrate + silver carbonate

14.14. Calcium + oxygen Calcium + oxygen →→ calcium oxide calcium oxide

15.15. Zinc + ferric oxide Zinc + ferric oxide → → zinc oxide + iron zinc oxide + iron

16.16. Magnesium bromide + chlorine Magnesium bromide + chlorine → → magnesium chloride + bromine magnesium chloride + bromine


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17.17. Sodium + water Sodium + water →→ sodium hydroxide + hydrogen sodium hydroxide + hydrogen

18.18. Potassium nitrate Potassium nitrate →→ potassium nitrite + oxygen potassium nitrite + oxygen

19.19. Calcium oxide + hydrochloric acid Calcium oxide + hydrochloric acid →→ calcium chloride + water calcium chloride + water

20.20. Magnesium + oxygen Magnesium + oxygen →→ magnesium oxide magnesium oxide

21.21. Iron + oxygen Iron + oxygen →→ iron(II) oxide iron(II) oxide

22.22. Water + dinitrogen trioxide Water + dinitrogen trioxide →→ nitrous acid nitrous acid

23.23. Sodium oxide + water Sodium oxide + water →→ sodium hydroxide sodium hydroxide

24.24. Iron(III) oxide + carbon monoxide Iron(III) oxide + carbon monoxide →→ iron + carbon dioxide iron + carbon dioxide

25.25. Methane (CHMethane (CH4) + 4) + oxygen oxygen →→ carbon dioxide + water carbon dioxide + water


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EQUATIONS – PREDICTING BY TYPE OF REACTIONEQUATIONS – PREDICTING BY TYPE OF REACTION

Part I: Complete the word equation and write the balanced chemical equation. Give the reason for Part I: Complete the word equation and write the balanced chemical equation. Give the reason for the product(s) in each case. Consult the activity series and the solubility tables.the product(s) in each case. Consult the activity series and the solubility tables.

Composition reactions: Composition reactions: 1. sodium + iodine 1. sodium + iodine →→

2. calcium + oxygen →2. calcium + oxygen →

3. hydrogen + chlorine →3. hydrogen + chlorine →

4. calcium oxide + water →4. calcium oxide + water →

5. dinitrogen pentoxide + water →5. dinitrogen pentoxide + water →

Decomposition reactions:Decomposition reactions:6. nickel(II) chlorate →6. nickel(II) chlorate →

7. barium carbonate →7. barium carbonate →

8. zince hydroxide →8. zince hydroxide →

9. mercury(II) oxide →9. mercury(II) oxide →

10. copper (II) carbonate →10. copper (II) carbonate →

Replacement reactions:Replacement reactions:11. aluminum + sulfuric acid 11. aluminum + sulfuric acid →→

12. potassium iodide + chlorine→12. potassium iodide + chlorine→

13. iron + copper (II) nitrate →13. iron + copper (II) nitrate →

14. zinc + hydrochloric acid →14. zinc + hydrochloric acid →

15. magnesium + silver nitrate →15. magnesium + silver nitrate →

Double Replacement (ionic reactions)Double Replacement (ionic reactions)16. silver nitrate + zinc chloride 16. silver nitrate + zinc chloride →→

17. copper(II) hydroxide + acetic acid →17. copper(II) hydroxide + acetic acid →

18. iron(II) sulfate + ammonium sulfide →18. iron(II) sulfate + ammonium sulfide →

19. ammonium chloride + sodium hydroxide →19. ammonium chloride + sodium hydroxide →

20. hydrochloric acid + potassium hydroxide →20. hydrochloric acid + potassium hydroxide →


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TYPES OF CHEMICAL EQUATIONS (IDENTIFICATION) TYPES OF CHEMICAL EQUATIONS (IDENTIFICATION)

State whether each of the following equations represents a synthesis (s) , decomposition(d), single replacement (sr), State whether each of the following equations represents a synthesis (s) , decomposition(d), single replacement (sr), double replacement (dr), or combustion reaction (c).double replacement (dr), or combustion reaction (c).

__________________________ 1. CO1. CO22 →→ C + O C + O22

__________________________ 2. NaCl + AgNO2. NaCl + AgNO33 →→ NaNO NaNO33 + AgCl + AgCl

__________________________ 3. S + Cl3. S + Cl22 →→ SCl SCl22

__________________________ 4. BaCl4. BaCl22 + 2NaOH - + 2NaOH -→→ 2NaCl + Ba(OH) 2NaCl + Ba(OH)22

__________________________ 5. 2C5. 2C22HH22 + 5O + 5O2 2 →→ 4CO 4CO22 + 2 H + 2 H22OO

__________________________ 6. Zn + CuSO6. Zn + CuSO44 →→ ZnSO ZnSO4 4 + Cu + Cu

__________________________ 7. CH7. CH44 →→ C + 2H C + 2H22

__________________________ 8. Pb(NO8. Pb(NO33))22 + Mg + Mg →→ Pb + Mg(NO Pb + Mg(NO33))22

__________________________ 9. Mg + 2 HCl 9. Mg + 2 HCl →→ MgCl MgCl22 + H + H22

________________________ 10. H10. H22SOSO44 →→ H H22 + S + 2O + S + 2O22

__________________________ 11. 2O11. 2O22 + N + N22 →→ N N22OO44

__________________________ 12. 3CaBr12. 3CaBr22 + 2Na + 2Na33P P →→ Ca Ca33PP22 + 6NaBr + 6NaBr

__________________________ 13. 2KI + Br13. 2KI + Br22 →→ 2KBr + I 2KBr + I22

__________________________ 14. C14. C66HH1212OO66 →→ 6C + 6H 6C + 6H22OO

__________________________ 15. 2NaF 15. 2NaF →→ 2Na + F 2Na + F22

__________________________ 16. Si + O16. Si + O22 →→ SiO SiO22

__________________________ 17. 2NaI + Pb(NO17. 2NaI + Pb(NO33))22 →→2NaNO2NaNO33 + PbI + PbI22

__________________________ 18. H18. H22 + CO + O + CO + O22 →→ H H22COCO33

__________________________ 19. C19. C33HH88 + 5O + 5O22 →→ 3CO 3CO22 + 4H + 4H22OO

__________________________ 20. Li20. Li33POPO44 →→ 3Li + P +2O 3Li + P +2O22

__________________________ 21. CS21. CS22 + 2F + 2F22 →→ CF CF44 + 2S + 2S

__________________________ 22. NaI + Cs 22. NaI + Cs →→ CsI + Na CsI + Na


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REACTION PREDICTION (Set #1) REACTION PREDICTION (Set #1)

If the word equation is complete, write and balance the chemical equation. If the word equation is If the word equation is complete, write and balance the chemical equation. If the word equation is incomplete, complete it and write the balanced chemical equation. Tell the type of reaction. Give incomplete, complete it and write the balanced chemical equation. Tell the type of reaction. Give reason(s) for the product(s)reason(s) for the product(s)

1. barium chloride + sodium sulfate 1. barium chloride + sodium sulfate →→

2. calcium + hydrochloric acid 2. calcium + hydrochloric acid →→

3. iron(II) sulfide + hydrochloric acid 3. iron(II) sulfide + hydrochloric acid → hydrogen sulfide (g) +→ hydrogen sulfide (g) +

4. zinc chloride + ammonium sulfide → 4. zinc chloride + ammonium sulfide →

5. ammonia + oxygen → nitric acid + water 5. ammonia + oxygen → nitric acid + water

6. magnesium + nitric acid →6. magnesium + nitric acid →

7. potassium + water →7. potassium + water →

8. sodium iodide + bromine →8. sodium iodide + bromine →

9. silver + sulfur→9. silver + sulfur→

10. sodium chlorate →10. sodium chlorate →

11. carbon + steam (H11. carbon + steam (H22O) → carbon monoxide(g) + hydrogen (g)O) → carbon monoxide(g) + hydrogen (g)

12. zinc + lead(II) acetate →12. zinc + lead(II) acetate →

13. iron (II) hydroxide →13. iron (II) hydroxide →

14. iron(II) oxide + carbon monoxide → iron + carbon dioxide (g)14. iron(II) oxide + carbon monoxide → iron + carbon dioxide (g)

15. lead (II) acetate + hydrogen sulfide →15. lead (II) acetate + hydrogen sulfide →

16. aluminum bromide + chlorine →16. aluminum bromide + chlorine →

17. magnesium carbonate →17. magnesium carbonate →

18. iron(II) chloride + sodium hydroxide →18. iron(II) chloride + sodium hydroxide →

19. calcium oxide + diphophorus pentoxide →19. calcium oxide + diphophorus pentoxide →

20. chromium + oxygen →20. chromium + oxygen →

21. sodium + water →21. sodium + water →

22. calcium carbonate + hydrochloric acid →22. calcium carbonate + hydrochloric acid →

23. calcim hydroxide + phophoric acid →23. calcim hydroxide + phophoric acid →

24. sodium carbonate + nitirc acid →24. sodium carbonate + nitirc acid →

25. aluminum hydroxide + sulfuric acid →25. aluminum hydroxide + sulfuric acid →

26. sodium sulfite + sulfuric acid →26. sodium sulfite + sulfuric acid →


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27. copper + sulfuric acid → copper (II) sulfate + water + sulfur dioxide (g)27. copper + sulfuric acid → copper (II) sulfate + water + sulfur dioxide (g)

28. calcium hydroxide + ammonium sulfate → calcium sulfate + water + ammonia28. calcium hydroxide + ammonium sulfate → calcium sulfate + water + ammonia

REACTION PREDICTION (Set #2) REACTION PREDICTION (Set #2) In each of the following examples:In each of the following examples:

a. State what type of reaction is expected.a. State what type of reaction is expected.b. Write the balanced equation for those reaction that do take place.b. Write the balanced equation for those reaction that do take place.

1.1. aluminum plus hydrochloric acidaluminum plus hydrochloric acid

2.2. calcium hydroxide plus nitric acidcalcium hydroxide plus nitric acid

3.3. magnesium plus zinc nitratemagnesium plus zinc nitrate

4.4. mercury plus oxygenmercury plus oxygen

5.5. zinc chloride plus hydrogen sulfidezinc chloride plus hydrogen sulfide

6.6. dinitrogen pentoxide plus waterdinitrogen pentoxide plus water

7.7. sodium chlorate heated to high temperaturesodium chlorate heated to high temperature

8. 8. barium nitrate plus sodium chromatebarium nitrate plus sodium chromate

9.9. sodium bromidesodium bromide plus silver nitrate plus silver nitrate

10.10. zinc carbonate strongly heatedzinc carbonate strongly heated

11.11. potassium plus fluorinepotassium plus fluorine

12.12. potassium nitrate plus zinc phosphatepotassium nitrate plus zinc phosphate

13.13. lithium oxide plus waterlithium oxide plus water

14.14. sodium chloride molten electrolyzedsodium chloride molten electrolyzed

15.15. iron(iii) hydroxide plus phosphoric acidiron(iii) hydroxide plus phosphoric acid

16.16. sodium plus nitric acidsodium plus nitric acid

17.17. sulfur dioxide plus watersulfur dioxide plus water

18.18. oxygen plus sulfuroxygen plus sulfur

19.19. sodium sulfate plus barium chloridesodium sulfate plus barium chloride

20.20. hydrogen plus oxygenhydrogen plus oxygen

21.21. sodium oxide plus watersodium oxide plus water

22.22. mercury(I) nitrate plus sodium carbonatemercury(I) nitrate plus sodium carbonate

23.23. magnesium plus hydrochloric acidmagnesium plus hydrochloric acid

24. 24. lead(II) nitrate and sodium iodidelead(II) nitrate and sodium iodide

25. 25. chromium(II) perchlorate and sodium sulfidechromium(II) perchlorate and sodium sulfide


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REACTION PREDICTION (Set #3) REACTION PREDICTION (Set #3) Write a balanced chemical equation for each of the following reacions. Classify the reation type.Write a balanced chemical equation for each of the following reacions. Classify the reation type.

1.1. iron(III) oxide + hydrogen iron(III) oxide + hydrogen

2.2. bismuth(V) oxide bismuth(V) oxide

3.3. Manganeese (II) chlorate + potassium phosphate Manganeese (II) chlorate + potassium phosphate

4.4. Lead (II) acetate + sodium chromate Lead (II) acetate + sodium chromate

5.5. potassium + iodine potassium + iodine

6.6. ammonium sulfate + barium nitrate ammonium sulfate + barium nitrate

7.7. zinc oxide zinc oxide

8.8. gold(III) chloride + sodium sulfide gold(III) chloride + sodium sulfide

9.9. magnesium + hydrochloric acid magnesium + hydrochloric acid

10.10. calcium hydroxide + iron (II) nitrate calcium hydroxide + iron (II) nitrate

11.11. C C44HH1010 + O + O22

12.12. tin(IV) sulfide tin(IV) sulfide

13.13. silver nitrate + zinc silver nitrate + zinc

14.14. potassium carbonate + lead (II) nitrate potassium carbonate + lead (II) nitrate

15.15. ammonium chloride + mercury(II) acetate ammonium chloride + mercury(II) acetate

16.16. iron + hydrochloric acid iron + hydrochloric acid

17.17. sodium iodide + chlorine sodium iodide + chlorine

18.18. aluminum + oxygen aluminum + oxygen

19.19. barium chloride + lithium sulfate barium chloride + lithium sulfate

20.20. sulfuric acid + calcium hydroxide sulfuric acid + calcium hydroxide

21.21. iron (II) nitrate + sodium sulfite iron (II) nitrate + sodium sulfite


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22.22. CC55HH12 12 + O+ O22 REACTION PREDICTION (Set #4) REACTION PREDICTION (Set #4) Write a balanced chemical equation for each of the following reacions. Classify the reation type.Write a balanced chemical equation for each of the following reacions. Classify the reation type.

1.1. zinc chloride + ammonium sulfide zinc chloride + ammonium sulfide

2.2. zinc + copper (II) sulfate zinc + copper (II) sulfate

3.3. magnesium bromide + chlorine magnesium bromide + chlorine

4.4. aluminum oxide aluminum oxide

5.5. silver nitrate + sodium chloride silver nitrate + sodium chloride

6.6. magnesium + copper (II) nitrate magnesium + copper (II) nitrate

7.7. sodium hydroxide + sulfuric acid sodium hydroxide + sulfuric acid

8.8. lead (II) nitrate + potassium bromide lead (II) nitrate + potassium bromide

9.9. copper + tin (IV) chloride copper + tin (IV) chloride

10.10. CC1010HH2222 + O + O22

11.11. potassium sulfide + iron (III) nitrate potassium sulfide + iron (III) nitrate

12.12. zinc + silver nitrate zinc + silver nitrate

13.13. silver + oxygen silver + oxygen

14.14. tin(IV) chloride tin(IV) chloride

15.15. calcium hydroxide + phophoric acid calcium hydroxide + phophoric acid

16.16. magnesium iodide + chlorine magnesium iodide + chlorine

17.17. barium nitrate + sodium phophate barium nitrate + sodium phophate

18.18. manganeese(IV) oxide manganeese(IV) oxide

19.19. nitrogen + hydrogen nitrogen + hydrogen ammonia ammonia

20.20. CC1111HH2222 + O + O22

21.21. aluminum chloride + potassium sulfide aluminum chloride + potassium sulfide

22. sodium sulfite + hydrochloric acid22. sodium sulfite + hydrochloric acid


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REVIEW OF WRITING CHEMICAL EQUATIONSFor each of the following equations write a formula equation. YOU DO NOT HAVE TO BALANCE IT. When applicable, write a net ionic equation.

1. Solutions of sodium fluoride and dilute hydrochloric acid are mixed.2. A saturated solution of barium hydroxide is mixed with a solution of iron(III) sulfate.3. A solution of ammonium sulfate is added to a potassium hydroxide solution.4. Carbon dioxide gas is bubbled through a concentrated solution of sodium hydroxide.5. Solid copper is added to a dilute nitric acid solution.6. Magnesium metal is burned in nitrogen gas.7. Sulfur dioxide gas is passed over solid calcium oxide.8. Lead foil is immersed in silver nitrate solution.9. A solution of ammonium sulfate is added to a saturated solution of barium hydroxide.10. Acetic acid solution is added to a solution of sodium hydrogen carbonate.11. Hydrogen gas is passed over hot iron(III) oxide.12. Dilute hydrochloric acid is added to a dilute solution of mercury (I) nitrate. 13. Sodium metal is added to water.14. Dilute sulfuric acid is added to a solution of lithium hydrogen carbonate.15. A piece of lithium metal is dropped into a container of nitrogen gas.16. Dilute hydrochloric acid is added to a solution of potassium sulfite.17. Solid sodium oxide is added to water.18. A solution of sodium sulfide is added to a solution of zinc nitrate.19. A solution of ammonia is added to a dilute solution of acetic acid.20. Solid calcium is added to warm water.21. Powdered magnesium oxide is added to a container of carbon dioxide gas.22. Gaseous hydrogen sulfide is bubbled through a solution of nickel(II) nitrate.23. A strip of magnesium is added to a solution of silver nitrate.24. Solid potassium chlorate is heated in the presence of manganese dioxide as a catalyst.25. Dilute hydrochloric acid is added to a solution of potassium carbonate.26. Sulfur trioxide gas is added to excess water.27. Dilute sulfuric acid is added to a solution of barium chloride.28. Solutions of zinc sulfate and sodium phosphate are mixed.29. Solutions of silver nitrate and lithium bromide are mixed.30. Excess hydrochloric acid solution is added to a solution of potassium carbonate.31. Ethanol (C2H5OH) is burned in excess oxygen gas.


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OXIDATION /REDUCTION REACTIONSOXIDATION /REDUCTION REACTIONS

1.1. Assign oxidation number to each element in the following compounds:Assign oxidation number to each element in the following compounds:

a. PbSOa. PbSO44 b. Hb. H22OO22 c. Kc. K22CrCr22OO77 d. Kd. K22SiOSiO33

2.2. Which of the following are oxidation-reduction reactions?Which of the following are oxidation-reduction reactions?

a. 2Na + Cl2 → 2NaCl

b. b. C + OC + O22 → CO → CO22

c. c. 2H2H22O ↔ 2HO ↔ 2H22 + O + O22

d. d. NaCl + AgNONaCl + AgNO33 → AgCl + NaNO → AgCl + NaNO33

e. e. NHNH33 + HCl → NH + HCl → NH44+1+1 + Cl + Cl-1-1

f. f. 2KClO2KClO33 → 2KCl + O → 2KCl + O22

g. g. HH22 + Cl + Cl22 → 2HCl → 2HCl

h. h. 2H2H22 + O + O22 → 2H → 2H22OO

i. i. HH22SOSO44 + 2KOH →K + 2KOH →K22SOSO44 + 2H + 2H22OO

j. j. Zn + CuSOZn + CuSO44 →ZnSO →ZnSO44 + Cu + Cu

3.3. For each oxidation-reduction in Question 2 identify the:For each oxidation-reduction in Question 2 identify the:

a. substance oxidizeda. substance oxidized

b. substance reduced b. substance reduced

c. the oxidizing agentc. the oxidizing agent

d. the reducing agentd. the reducing agent

e. write the oxidation and reduction half-reactions e. write the oxidation and reduction half-reactions


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OXIDATION REDUCTION REACTIONS – BALANCING: Set #1OXIDATION REDUCTION REACTIONS – BALANCING: Set #1

Balance the following equations using the ion-electron method.Balance the following equations using the ion-electron method.

1.1. HH22S + OS + O22 SO SO22 + H + H22OO

2.2. MnOMnO22 + HCl + HCl H H22O + MnClO + MnCl22 + Cl + Cl22

3.3. zinc + hydrochloric acid zinc + hydrochloric acid zinc chloride + hydrogen zinc chloride + hydrogen

4.4. iron + copper(II) sulfate iron + copper(II) sulfate iron (II) sulfate + copper iron (II) sulfate + copper

5.5. copper + sulfuric acid copper + sulfuric acid copper (II) sulfate + hydrogen copper (II) sulfate + hydrogen

6.6. potassium dichromate + sulfur + water potassium dichromate + sulfur + water sulfur dioxide + potassium hydroxide + chromium sulfur dioxide + potassium hydroxide + chromium

(III) oxide(III) oxide

7.7. bromine + water bromine + water hydrobromic acid + hypobromous acid hydrobromic acid + hypobromous acid

8.8. HCl + KMnOHCl + KMnO44 H H22O + KCl + MnClO + KCl + MnCl22 + Cl + Cl22

9.9. KK22CrCr22OO77 + HCl + HCl KCl + CrCl KCl + CrCl33 + H + H22O + ClO + Cl22

10.10. CuCu22O + SOO + SO22 CuS + O CuS + O22

11.11. CSCS22 + SCl + SCl22 CCl CCl44 + S + S

12.12. NaAu(CN)NaAu(CN)22 + Zn + Zn Na Na22Zn(CN)Zn(CN)44 + Au + Au

13.13. FeSOFeSO44 + O + O22 + H + H22O O FeOHSO FeOHSO44

14.14. HBr + Ca(BrO)HBr + Ca(BrO)22 CaBr CaBr22 + Br + Br22 + H + H22OO

15. 15. CaCa33(PO(PO44))22 + SiO + SiO22 P P44OO1010 + CaSiO + CaSiO33

16.16. The oxidation-reduction reaction between copper and concentrated nitric acid yields the following The oxidation-reduction reaction between copper and concentrated nitric acid yields the following products: copper(II) nitrate, water and nitrogen dioxide. Write a balanced equation for this products: copper(II) nitrate, water and nitrogen dioxide. Write a balanced equation for this reaction.reaction.

17.17. The reaction between copper and dilute nitric acid yields the following products: copper (II) nitrate, The reaction between copper and dilute nitric acid yields the following products: copper (II) nitrate, water and nitrogen monoxide. Write the balanced equation.water and nitrogen monoxide. Write the balanced equation.

Balancing REDOX Balancing REDOX Reactions: Set #2Reactions: Set #2


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Balancing Equations: Balancing Equations: Formulas Given, Page 1Formulas Given, Page 1

1) 2, 1, 21) 2, 1, 22) 3, 2, 12) 3, 2, 13) 1, 1, 13) 1, 1, 14) 1, 1, 24) 1, 1, 25) 2, 1, 2, 15) 2, 1, 2, 16) 1, 2, 1, 26) 1, 2, 1, 27) 2, 2, 17) 2, 2, 18) 2, 3, 1, 38) 2, 3, 1, 39) 1, 3, 1, 39) 1, 3, 1, 310) 1, 2, 1, 210) 1, 2, 1, 211) 2, 1 ,2 , 111) 2, 1 ,2 , 112) 2, 3 ,2, 212) 2, 3 ,2, 213) 2, 2, 1, 213) 2, 2, 1, 214) 1, 1, 1, 214) 1, 1, 1, 215) 2, 15, 12, 615) 2, 15, 12, 616) 2, 2, 2, 116) 2, 2, 2, 117) 1, 2, 317) 1, 2, 318) 3, 2, 2, 318) 3, 2, 2, 319) 1, 2, 1, 219) 1, 2, 1, 220.) 2, 1, 2, 1, 220.) 2, 1, 2, 1, 221) 1, 1, 1, 421) 1, 1, 1, 422) 1, 6, 3, 222) 1, 6, 3, 223) 12, 1, 4, 623) 12, 1, 4, 624) 4, 1, 8, 1, 824) 4, 1, 8, 1, 825) 1, 12, 2, 325) 1, 12, 2, 326) 3, 4, 1, 326) 3, 4, 1, 327) 2, 2, 2, 1, 427) 2, 2, 2, 1, 428) 1, 4, 1, 2, 328) 1, 4, 1, 2, 329) 1, 6, 6, 2, 1, 3, 629) 1, 6, 6, 2, 1, 3, 6

Balancing Equations – Balancing Equations – Names Given (pages 2/3)Names Given (pages 2/3)

1. 2K + 2H1. 2K + 2H22O O 2KOH + 2KOH + HH22

2. Cl2. Cl22 + 2KBr + 2KBr 2KCl + 2KCl + BrBr22

3. Zn + 2HCl 3. Zn + 2HCl ZnCl ZnCl22 + + HH22

4. 3Fe + 4H4. 3Fe + 4H22O O Fe Fe33OO44 + + 4H4H22

5. 2ZnS + 3O5. 2ZnS + 3O22 2ZnO + 2ZnO + 2SO2SO22

6. C6. C1010 H H1616 + 8Cl + 8Cl22 10C + 10C + 16 HCl16 HCl

7. 2Al + 6NaOH 7. 2Al + 6NaOH 2Na2Na33AlOAlO3 3 + 3H + 3H22

8. 2C8. 2C22HH22 + 5O + 5O22 4CO 4CO22 + + 2H2H22OO9. 4NH9. 4NH33 + 5O + 5O22 4NO + 4NO + 6H6H22OO10. 12P + 10Fe10. 12P + 10Fe22OO33 3P3P44OO10 10 + 20 Fe + 20 Fe11. 4CuS + 5O11. 4CuS + 5O22 2Cu 2Cu22O O + 4SO+ 4SO22

12. 2NaHCO12. 2NaHCO33 + H + H22SOSO44 NaNa22SOSO44 + 2H + 2H22O + 2COO + 2CO22

13. Na13. Na22COCO33 + 2AgNO + 2AgNO33 2NaNO2NaNO33 + Ag + Ag22COCO33

14. 2Ca + O14. 2Ca + O22 2CaO 2CaO15. 3Zn + Fe15. 3Zn + Fe22OO33 3ZnO 3ZnO + 2Fe+ 2Fe

16. HgBr16. HgBr22 + Cl + Cl22 MgCl MgCl22 + Br+ Br22

17. 2Na + 2H17. 2Na + 2H22O O 2NaOH 2NaOH + H+ H22

18. 2KNO18. 2KNO33 2KNO 2KNO22 + O + O22

19. CaO + 2HCl 19. CaO + 2HCl CaCl CaCl22 + H+ H22OO20. 2 MgO + O20. 2 MgO + O22 2MgO 2MgO21. 2Fe + O21. 2Fe + O22 2FeO 2FeO22. H22. H22O + NO + N22OO33 2HNO 2HNO22

23. Na23. Na22O + HO + H22O O 2NaOH 2NaOH24. Fe24. Fe22OO3 3 + 3CO + 3CO 2Fe + 2Fe + 3CO3CO22

25. CH25. CH44 + 2O + 2O22 CO CO22 + + 2H2H22OO

EQUATIONS – Predicting by type of reaction, page 4EQUATIONS – Predicting by type of reaction, page 4


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1. 2Na + I1. 2Na + I22 → 2NaI → 2NaI2. 2Ca + O2. 2Ca + O22 → 2CaO → 2CaO3. H3. H22 + Cl + Cl22 → 2HCl → 2HCl4. CaO + H4. CaO + H22O → Ca(OH)O → Ca(OH)22

5. N5. N22OO55 + H + H22O → 2HNOO → 2HNO33

6. Ni(ClO6. Ni(ClO33))22 → NiCl → NiCl22 + 3O + 3O22

7. BaCO7. BaCO33 → BaO + CO → BaO + CO22

8. Zn(OH)8. Zn(OH)22 → ZnO + H → ZnO + H22OO9. 2HgO → 2Hg + O9. 2HgO → 2Hg + O22

10. CuCO10. CuCO33 → CaO + CO → CaO + CO22

11. 2Al + 3 H11. 2Al + 3 H22SOSO44 → Al → Al22(SO(SO44))33 + 3H + 3H22OO12. 2KI + Cl2→ 2KCl + I212. 2KI + Cl2→ 2KCl + I213. 2 Fe + 3Cu(NO3)2 →2 Fe(NO3)3 + 3Cu13. 2 Fe + 3Cu(NO3)2 →2 Fe(NO3)3 + 3Cu14. Zn + 2HCl → ZnCl14. Zn + 2HCl → ZnCl22 + H + H22

15. Mg + 2AgNO15. Mg + 2AgNO33 → Mg(NO → Mg(NO33))22 + 2Ag + 2Ag

16. 2AgNO16. 2AgNO33 + ZnCl + ZnCl2 2 → Zn(NO → Zn(NO33))22 + 2AgCl(s) + 2AgCl(s)17. Cu(OH)17. Cu(OH)22 + 2 CH + 2 CH33COOH → Cu(CHCOOH → Cu(CH33COO) COO) 22 + 2H + 2H22OO18. FeSO18. FeSO44 + (NH + (NH44))22S → FeS + (NHS → FeS + (NH44))22SOSO44

19. NH19. NH44Cl + NaOH → NHCl + NaOH → NH33 + H + H22O + NaClO + NaCl20. HCl + KOH → KCl + H20. HCl + KOH → KCl + H22OO

Types of Chemical Equations (Page # 5)Types of Chemical Equations (Page # 5)

1. d1. d 2. dr2. dr 3. s3. s 4. dr4. dr 5. c5. c 6. sr6. sr 7. d7. d8. 8. srsr 10. d10. d 11. s11. s 12. s12. s 13. dr13. dr 14. d14. d 15. d15. d16. s16. s 17. dr17. dr 18. s18. s 19. c19. c 20. d20. d 21. sr21. sr 22. sr22. sr

Reaction Prediction (Set #1) Page 6Reaction Prediction (Set #1) Page 6

1. BaCl1. BaCl22 + Na + Na22SOSO44 → BaSO→ BaSO4 4 (s) + 2NaCl(s) + 2NaCl2. Ca + 2HCl 2. Ca + 2HCl → CaCl→ CaCl22 + H + H22

3. FeS + 2HCl → H3. FeS + 2HCl → H22S + FeClS + FeCl22

4. ZnCl4. ZnCl22 + (NH + (NH44))22S → ZnS(s) + 2NHS → ZnS(s) + 2NH44ClCl5. NH5. NH33 + 2O + 2O22 → HNO → HNO33 + H + H22OO6. Mg + 2HNO6. Mg + 2HNO33 → Mg(NO → Mg(NO33))22 + H + H22

7. 2K + 2H7. 2K + 2H22O → 2KOH + HO → 2KOH + H22

8. 2NaI + Br8. 2NaI + Br22 → 2NaBr + I → 2NaBr + I22

9. 2Ag + S → Ag9. 2Ag + S → Ag22SS10. 2NaClO10. 2NaClO33 → 2NaCl + 3O → 2NaCl + 3O22

11. C + H11. C + H22O → CO + HO → CO + H22

12. Zn + Pb(C12. Zn + Pb(C22HH33OO22))22 → H → H22 + Zn (C + Zn (C22HH22OO33))22

13. Fe(OH)13. Fe(OH)22 → FeO + H → FeO + H22OO14. FeO + CO → Fe + CO14. FeO + CO → Fe + CO22

15. Pb(C15. Pb(C22HH33OO22))22 + H + H22S → PbS + 2HCS → PbS + 2HC22HH33OO22

16. 2AlBr16. 2AlBr33 + 3Cl + 3Cl22 → 2AlCl → 2AlCl33 + 3 Br + 3 Br22

17. MgCO17. MgCO33 → MgO + CO → MgO + CO22

18. FeCl18. FeCl22 + 2NaOH → Fe(OH) + 2NaOH → Fe(OH)22(s) + NaCl(s) + NaCl19. 6CaO + 2P19. 6CaO + 2P22OO55 → 2Ca → 2Ca33(PO(PO44))22

20. 4Cr + 3O20. 4Cr + 3O22 → 2Cr → 2Cr22OO33

21. 2Na + 2H21. 2Na + 2H22O → 2NaOH + HO → 2NaOH + H22

22. CaCO22. CaCO33 + 2HCl → CaCl + 2HCl → CaCl22 + CO + CO22 + H + H22OO23. 3Ca(OH)23. 3Ca(OH)22 + 2 H + 2 H33POPO44 → Ca → Ca33(PO(PO44))22(s) + 6H(s) + 6H22OO24. 24. NaNa22COCO33 + 2HNO + 2HNO33 → 2NaNO → 2NaNO33 + H + H22O + COO + CO22

25. 2Al(OH)25. 2Al(OH)33 + 3H + 3H22SOSO44 → Al → Al22(SO(SO44))33 + 6H + 6H22OO26. Na26. Na22SOSO33 + H + H22SOSO44 → Na → Na22SOSO44 + SO + SO22 + H + H22OO27. Cu + H27. Cu + H22SOSO44 → CuSO → CuSO44 + H + H22

28. Ca(OH)28. Ca(OH)22 + (NH + (NH44))22SOSO44 → CaSO → CaSO44 + 2NH + 2NH33 + 2H + 2H22OO

Reaction Prediction (Set #2)Reaction Prediction (Set #2) : : (( Page 7Page 7).).

In each of the following examples:In each of the following examples:a. State what type of reaction is expected.a. State what type of reaction is expected.c. Write the balanced equation for those reaction that do take place.c. Write the balanced equation for those reaction that do take place.

1.1. aluminum plus hydrochloric acidaluminum plus hydrochloric acid 2Al + 6HCl → 2AlCl2Al + 6HCl → 2AlCl33 + 3H + 3H22

2.2. calcium hydroxide plus nitric acidcalcium hydroxide plus nitric acid Ca(OH)Ca(OH)22 + 2HNO + 2HNO33 → Ca(NO → Ca(NO33))22 + 2H + 2H22O(l)O(l)3.3. magnesium plus zinc nitratemagnesium plus zinc nitrate Mg + Zn(NOMg + Zn(NO33))22 → Mg(NO → Mg(NO33))22 + Zn + Zn4.4. mercury plus oxygenmercury plus oxygen 2Hg + O2Hg + O22 → 2HgO → 2HgO5.5. zinc chloride plus hydrogen sulfidezinc chloride plus hydrogen sulfide ZnClZnCl22 + H + H22S → ZnS(s) + 2HClS → ZnS(s) + 2HCl6.6. dinitrogen pentoxide plus waterdinitrogen pentoxide plus water NN22OO55 + H + H22O → 2HNOO → 2HNO33

7.7. sodium chlorate heated to high temperaturesodium chlorate heated to high temperature 2NaClO2NaClO33 →2NaCl + 3O →2NaCl + 3O22


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8. 8. barium nitrate plus sodium chromate barium nitrate plus sodium chromate Ba(NO Ba(NO33))22 + Na + Na22CrOCrO44 → BaCrO → BaCrO44(s) + 2NaNO(s) + 2NaNO33

9.9. sodium bromidesodium bromide plus silver nitrate plus silver nitrate NaBr + AgNONaBr + AgNO33 → NaNO → NaNO33 + AgBr(s) + AgBr(s)10.10. calcium phosphate plus aluminum sulfatecalcium phosphate plus aluminum sulfate CaCa33(PO(PO44))22 + Al + Al22(SO(SO44))33 → 3CaSO → 3CaSO44(s) + 2AlPO(s) + 2AlPO44(s)(s)11.11. zinc carbonate strongly heatedzinc carbonate strongly heated ZnCOZnCO33 → ZnO + CO → ZnO + CO22

12.12. potassium plus fluorinepotassium plus fluorine 2K + F2K + F22 →→ 2KF 2KF13.13. lithium oxide plus waterlithium oxide plus water LiLi22O + HO + H22O → 2LiOHO → 2LiOH14.14. sodium chloride molten electrolyzedsodium chloride molten electrolyzed 2NaCl ---electrolysis → 2Na + Cl2NaCl ---electrolysis → 2Na + Cl22

15.15. iron(iii) hydroxide plus phosphoric acidiron(iii) hydroxide plus phosphoric acid Fe(OH)Fe(OH)33 + H + H33POPO44 → FePO → FePO44 + 3H + 3H22O(l)O(l)16.16. sodium plus nitric acidsodium plus nitric acid 2Na + 2HNO2Na + 2HNO33 → 2 NaNO → 2 NaNO33 + H + H22

17.17. sulfur dioxide plus watersulfur dioxide plus water SOSO22 + H + H22O →HO →H22SOSO33

18.18. oxygen plus sulfuroxygen plus sulfur OO22 + S → SO + S → SO22

19.19. sodium sulfate plus barium chloridesodium sulfate plus barium chloride NaNa22SOSO44 + BaCl + BaCl22 → BaSO → BaSO44(s) + 2NaCl(s) + 2NaCl20.20. hydrogen plus oxygenhydrogen plus oxygen 2H2H22 + O + O22 →→ 2H 2H22OO21.21. sodium plus watersodium plus water 2Na + 2H2Na + 2H22O → 2 NaOH + HO → 2 NaOH + H22

22.22. mercury(I) nitrate plus sodium carbonatemercury(I) nitrate plus sodium carbonate Hg Hg22(NO(NO33))22 + Na + Na22COCO33 →Hg →Hg22COCO33(s) + NaNO(s) + NaNO33

23.23. magnesium plus hydrochloric acidmagnesium plus hydrochloric acid Mg + 2 HCl → MgClMg + 2 HCl → MgCl22 + H + H22

24. 24. lead(II) nitrate and sodium iodidelead(II) nitrate and sodium iodide Pb(NO3)2 + 2NaI Pb(NO3)2 + 2NaI → PbI2(s) + 2NaNO3→ PbI2(s) + 2NaNO325. 25. chromium(III) perchlorate and sodium sulfide 2Cr(ClOchromium(III) perchlorate and sodium sulfide 2Cr(ClO44))33 + 3Na + 3Na22S S → 2Cr→ 2Cr22SS33(s) + 6NaClO(s) + 6NaClO44

Reaction Prediction (Set #3)Reaction Prediction (Set #3) : : (( Page 8Page 8).).1.1. FeFe22OO33 +3H +3H22 3H 3H22O + 5FeO + 5Fe2.2. BiBi22OO55 4Bi + 5O 4Bi + 5O22

3.3. 3Mn(ClO3Mn(ClO33))22 + 2K + 2K33POPO44 6KClO 6KClO33 + Mn + Mn33(PO(PO44))22 (s) (s)4.4. Pb(CHPb(CH33COO)COO)22 + Na + Na22CrOCrO44 PbCrO PbCrO44(s) + 2NaCH(s) + 2NaCH33COOCOO5.5. 2K + I2K + I2 2 2KI 2KI6.6. (NH(NH44))22SOSO44 + Ba(NO + Ba(NO33))22 BaSO BaSO44(s) + 2NH(s) + 2NH44NONO33

7.7. 2ZnO 2ZnO 2Zn + O 2Zn + O22

8.8. 2AuCl2AuCl33 + 3Na + 3Na22S S 6NaCl + Au 6NaCl + Au22SS33(s)(s)9.9. Mg + 2HCl Mg + 2HCl MgCl MgCl22 + H + H22

10.10. Ca(OH)Ca(OH)22 + Fe(NO + Fe(NO33))22 Fe(OH) Fe(OH)22 (s) + Ca(NO3) (s) + Ca(NO3)22

11.11. 2C2C44HH1010 + 13 O + 13 O22 8CO 8CO22 + 10 H + 10 H22OO12.12. SnSSnS22 Sn + 2S Sn + 2S13.13. 2AgNO2AgNO33 + Zn + Zn Zn(NO Zn(NO33))22 + 2Ag + 2Ag14.14. KK22COCO33 + Pb(NO + Pb(NO33))22 2KNO 2KNO33 + PbCO + PbCO3(s)3(s)

15.15. 2NH2NH44Cl + Hg(CCl + Hg(C33HH33OO22))22 2NH 2NH44CC22HH33OO22 + HgCl + HgCl2(s)2(s)

16.16. Fe + 2HCl Fe + 2HCl FeCl FeCl22 + H + H2 2 or 2Fe + 6HCl or 2Fe + 6HCl 2FeCl 2FeCl33 + 3H2 + 3H217.17. 2NaI + Cl2NaI + Cl22 2NaCl + I 2NaCl + I22

18.18. 4Al + 3O4Al + 3O22 2Al 2Al22OO33

19.19. BaClBaCl2 2 + Li+ Li22SOSO44 BaSO BaSO4(s)4(s) + 2 LiCl + 2 LiCl20.20. HH22SOSO44 + Ca(OH) + Ca(OH)22 CaSO CaSO44 + 2H + 2H22OO21.21. Fe(NOFe(NO33))22 + Na + Na22S S FeS + 2NaNO FeS + 2NaNO33

22.22. CC55HH1111 + 8O + 8O22 5CO 5CO22 + 6H + 6H22OO

Reaction Prediction (Set #4)Reaction Prediction (Set #4) : : (( Page 9Page 9).).1. ZnCl1. ZnCl22 + (NH + (NH44))22S → 2NHS → 2NH44Cl + ZnS(s)Cl + ZnS(s)2. Zn + CuSO2. Zn + CuSO4 4 → ZnSO → ZnSO44 + Cu + Cu3. MgBr3. MgBr22 + Cl + Cl22 → MgCl → MgCl22 + Br + Br22

4. 2Al4. 2Al22OO33 → 2Al + 3O= → 2Al + 3O=5. AgNO5. AgNO33 + NaCl → AgCl(s) + NaNO= + NaCl → AgCl(s) + NaNO=6. Mg + Cu(NO6. Mg + Cu(NO33))22 → Mg(NO → Mg(NO33))22 + Cu + Cu


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7. 2NaOH + H7. 2NaOH + H22SOSO44 → Na → Na22SOSO44 + 2H + 2H22OO8. Pb(NO8. Pb(NO33))22 + 2KBr → PbBr + 2KBr → PbBr22(s) + 2KNO(s) + 2KNO33

9. 2Cu + SnCl9. 2Cu + SnCl44 → 2CaCl → 2CaCl22 + Sn + Sn10. 2C10. 2C1010HH2222 + 31O + 31O22 → 20CO → 20CO22 + 22H + 22H22OO11. 3K11. 3K22S + 2Fe(NOS + 2Fe(NO33))33 → 6KNO → 6KNO33 + Fe + Fe22SS33(s)(s)12. Zn + 2AgNO12. Zn + 2AgNO33 → Zn(NO → Zn(NO33))22 + 2Ag + 2Ag13. 4Ag + O13. 4Ag + O22 → 2Ag → 2Ag22OO14. SnCl14. SnCl44 → Sn + 2Cl → Sn + 2Cl22

15. 3Ca(OH)15. 3Ca(OH)22 + 2H + 2H33POPO44 → Ca → Ca33(PO(PO44))22(s) + 6H(s) + 6H22OO16. MgI16. MgI22 + Cl + Cl22 → MgCl → MgCl22 + I + I22

17. 3Ba(NO17. 3Ba(NO33))22 + 2Na + 2Na33POPO44 → Ba → Ba33(PO(PO44))22(s) + 6NaNO(s) + 6NaNO33

18. MnO18. MnO22 → Mn + O → Mn + O22

19. N19. N22 + 3H + 3H22 → 2NH → 2NH33

20. 2C20. 2C1111HH2222 + 33O + 33O22 → 22CO → 22CO22 + 22H + 22H22OO21. 2AlCl21. 2AlCl33 + 3K + 3K22S → 6KCl + AlS → 6KCl + Al22SS33

22. 22. NaNa22SOSO33 + 2HCl → 2NaCl + SO + 2HCl → 2NaCl + SO22(g) + H(g) + H22OO

REVIEW OF WRITING CHEMICAL EQUATIONS: PAGE 10REVIEW OF WRITING CHEMICAL EQUATIONS: PAGE 10 Formula Equation Formula Equation Ionic EquationIonic Equation

1. 1. NaF(aq) + HCl(aq) → NaCl + HF(g)NaF(aq) + HCl(aq) → NaCl + HF(g) HH++ + F + F-- → HF(g) → HF(g)2.2. Ba(OH)Ba(OH)22 + Fe + Fe22(SO(SO44))33 → BaSO → BaSO44 + Fe(OH) + Fe(OH)3 3

BaBa+2+2 + OH + OH-- + Fe + Fe+3+3 + SO + SO44-2-2 →BaSO →BaSO44(s) + Fe(OH)(s) + Fe(OH)33(s)(s)

3.3. (NH(NH44))22SOSO44 + KOH→ K + KOH→ K22SOSO44 + NH + NH33(g) + H(g) + H22OO NHNH44++ + OH + OH-- → NH → NH33 + H + H22OO

4.4. COCO22(g) + NaOH(aq) → Na(g) + NaOH(aq) → Na22COCO33 + H + H22OO COCO22 + H + H22O → HO → H22COCO33

HH22COCO33 + NaOH → Na + NaOH → Na22COCO33 + H + H22OO HH++ + OH + OH-- → H → H22OO5.5. Cu + HNOCu + HNO33 → H → H22 + Cu(NO + Cu(NO33))22 NO REACTIONNO REACTION6. 6. Mg + NMg + N22 → Mg → Mg33NN22

7.7. SOSO22(g) + CaO → CaSO(g) + CaO → CaSO33

8.8. Pb(s) + AgNOPb(s) + AgNO33 (aq) → Ag + Pb(NO (aq) → Ag + Pb(NO33))22 Pb(s) + AgPb(s) + Ag++ → Pb → Pb+2+2 + Ag(s) + Ag(s)9.9. (NH(NH44))22SOSO44 + Ba(OH) + Ba(OH) 22 → BaSO → BaSO44(s) + NH(s) + NH44OHOH BaBa+2+2 + SO + SO44

-2-2 → BaSO → BaSO44(s)(s)10.10. HCHC22HH33OO22 + NaHCO + NaHCO33 → NaC → NaC22HH33OO22 + H + H22O + COO + CO22 HH++ +HCO +HCO33

--→ H→ H22O + COO + CO22

11.11. HH22 + Fe + Fe22OO33 → Fe + H → Fe + H22OO HH22 + Fe + Fe+3+3→ H→ H++ + Fe + Fe12.12. HCl + HgHCl + Hg22(NO(NO33))22 → HNO → HNO33 + Hg + Hg22ClCl22(s)(s) HgHg22

+2+2 + Cl + Cl-- → Hg → Hg22ClCl22(s)(s)13. 13. Na + HNa + H22O → NaOH + HO → NaOH + H22 Na + HNa + H++ → H → H22 + Na + Na++

14.14. HH22 SO SO44 + LiHCO + LiHCO33 → Li → Li22SOSO44 + H + H22O + COO + CO22 HH++ +HCO +HCO33--→ H→ H22O + COO + CO22

15.15. Li + NLi + N22 → Li → Li33NN16.16. HCl + KHCl + K22SOSO33 → KCl + H → KCl + H22O + SOO + SO22 H+ + SOH+ + SO33

-2-2 → H → H22O + SOO + SO22

17.17. NaNa22O + HO + H22O → NaOHO → NaOH18.18. NaNa22S + Zn(NOS + Zn(NO33))22 → ZnS(s) + NaNO → ZnS(s) + NaNO33 ZnZn+2+2 + S + S-2-2 → ZnS(s) → ZnS(s)19.19. NHNH44OH + HCOH + HC22HH33OO2 2 → NH→ NH44CC22HH33OO22 + H + H22OO HH++ + OH + OH-- → H → H22OO20.20. Ca + HCa + H22O → Ca(OH)O → Ca(OH)22

21.21. MgO + COMgO + CO22 → MgCO → MgCO33

22.22. HH22S(g) + Ni(NOS(g) + Ni(NO33))22 → NiS(s) + HNO → NiS(s) + HNO33 NiNi+2+2 + S + S-2-2 → NiS → NiS(S)(S)

23.23. Mg + AgNOMg + AgNO3 3 → Ag + Mg(NO→ Ag + Mg(NO33))22 Mg + AgMg + Ag+1+1 → Mg → Mg+2+2 + Ag + Ag24.24. KClOKClO33 → KCl + O → KCl + O22

25.25. HCl + KHCl + K22COCO33 → KCl + H → KCl + H22O + COO + CO22 H+ COH+ CO33-2-2 → H → H22O + COO + CO22

26.26. SOSO33(g) + H(g) + H22O → HO → H22SOSO33

27.27. HH22SOSO44 + BaCl + BaCl22 → BaSO → BaSO44 + HCl + HCl BaBa+2+2 + SO + SO44-2-2 → BaSO → BaSO44(s)(s)

28.28. ZnSOZnSO44 + Na + Na33POPO44 → Zn → Zn33(PO(PO44))22 (s)(s) + Na2SO4 + Na2SO4 Zn Zn +2+2 + PO + PO44-3-3 → Zn → Zn33(PO(PO44))22(s)(s)


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29.29. AgNOAgNO33 + LiBr → LiNO + LiBr → LiNO33 + AgBr + AgBr AgAg++ + Br + Br-- → AgBr → AgBr30. 30. HCl + KHCl + K22COCO33 → KCl + H → KCl + H22O + COO + CO22 H+ COH+ CO33

-2-2 → H → H22O + COO + CO22 31.31. CC22HH55OH + OOH + O22 → CO → CO22 + H + H22OO

Oxidation/Reduction Reactions: page 11Oxidation/Reduction Reactions: page 11

1. (a) +2, +6, -21. (a) +2, +6, -2 2. +1, -12. +1, -1 3. +1, +6, -23. +1, +6, -22. (a), (b), (c), (f), (g) (h), (j) are oxidation/reduction reactions2. (a), (b), (c), (f), (g) (h), (j) are oxidation/reduction reactions3.3.

Question #Question # SubstanceSubstance oxidizedoxidized

SubstanceSubstance reducedreduced Oxidizing agentOxidizing agent Reducing agentReducing agent EquationEquation

(a)(a) NaNa00 ClCl22 ClCl22 NaNa NaNa00 → Na → Na+1+1 + 1e; Cl + 1e; Cl22 + 2e → 2Cl + 2e → 2Cl--

(b)(b) CC00 OO22 OO22 CC00 CC00 → C → C+4+4 + 4e; O + 4e; O22 +4e → 2c +4e → 2c(c)(c) OO-2-2 HH+1+1 HH+1+1 OO-2-2 2O2O-2-2→ 3O→ 3O22 +4e; 4e + 4 H +4e; 4e + 4 H+1 +1 → H→ H22

0 0

(f)(f) OO-2-2 ClCl+5+5 ClCl+5+5 OO-2-2 6 O6 O-2-2→ 3O→ 3O22 +12e; 2Cl +12e; 2Cl+5+5 + 12 e → 2Cl + 12 e → 2Cl-1-1

(g)(g) HH2200 ClCl22

00 ClCl2200 HH22

00 HH2200 → 2H → 2H+1+1 + 2e; Cl + 2e; Cl22

00 + 2e → 2Cl + 2e → 2Cl-1-1

(h)(h) HH2200 OO22 OO22 HH22

00 OO22 +4e O +4e O-2-2→ 2O→ 2O-2-2 ; 2 H ; 2 H220 0 → 4H→ 4H+1+1 + 4e + 4e

(j)(j) ZnZn00 CuCu+2+2 CuCu+2+2 ZnZn00 ZnZn00→ Zn→ Zn+2+2 + 2e; Cu + 2e; Cu+2+2 + 2e → Cu + 2e → Cu00

Oxidation/Reduction Reactions - Balancing: page 12Oxidation/Reduction Reactions - Balancing: page 12

1.1. 2, 2, 22, 2, 22.2. 1, 4, 2, 1, 11, 4, 2, 1, 13.3. 1, 2, 1, 21, 2, 1, 24.4. 1, 1, 1, 11, 1, 1, 15.5. 1, 2, 1, 11, 2, 1, 16.6. 1, 2, 1, 2, 2, 21, 2, 1, 2, 2, 2

7.7. 1, 1, 1, 11, 1, 1, 18.8. 16, 2, 8, 2, 2, 516, 2, 8, 2, 2, 59.9. 1, 14, 2, 2, 7,31, 14, 2, 2, 7,310.10.2, 4, 4, 12, 4, 4, 111.11.1, 2, 1, 41, 2, 1, 412.12. 2, 1, 1, 2 2, 1, 1, 2

13.13. 4, 1, 2, 4 4, 1, 2, 414.14. 4, 1, 1, 2, 2 4, 1, 1, 2, 215.15. 2, 6, 1, 6 2, 6, 1, 616.16.1, 4, 1, 2, 21, 4, 1, 2, 217.17. 3, 8, 3 ,4, 2 3, 8, 3 ,4, 2

Answers to Odd Numbered Exercises: page 13Answers to Odd Numbered Exercises: page 13


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