Types of Chemical Reactions

(See Chapter 10.3)Types of Chemical ReactionsTypes of Chemical ReactionsHow many songs exist?Lets say I want to sort my music. How could I do that?

Types of Chemical ReactionsThere are too many chemical equations to count.However, we can sort them into five general categories.3Type 1: Synthesis ReactionTwo compounds combine to make one compoundA+BA+BABABType 1: Synthesis ReactionExampleH+O2H2+O22H2OOHHHHHOHHOType 2: Decomposition ReactionOne compound breaks apart into two or more compounds or elementsA+BA+BABABType 2: Decomposition ReactionExampleO+CaCaO(s)+CO2(g)CaCO3(s)CO O CaO O O CType 3: Single Replacement ReactionTwo compounds swap a single element or polyatomic ionA+BA+BCBACCAC+B+Type 3: Single Replacement ReactionExampleNa+KNa(s)+KCl(s)KNaCl(s)ClNaCl+K(s)+Type 4: Double Replacement ReactionTwo ions trade partnersA+BAB+CDADC+CB+DACBDType 4: Double Replacement ReactionExample+KI2KI(s)+Ca(OH)2(s)2KOH(s)Ca+CaI2(s)+OKIOHHKOHKOHCaIIType 5: Combustion ReactionA molecule reacts with O2 to make CO2, H2O, and lots of heat+CxHy+O2CO2+H2O+HHOO O COOCHType 5: Combustion ReactionExample+CH4+2O2CO2+2H2O+HHOO O COOHHOOOCHHHHPracticeWhat type of reaction is:

N2(g) + 3H2(g) 2NH3(g)

1) Synthesis2) Decomposition3) Single Replacement4) Double Replacement5) CombustionPracticeWhat type of reaction is:

NaNO3(s) + K(s) Na(s) + KNO3(s)

1) Synthesis2) Decomposition3) Single Replacement4) Double Replacement5) CombustionPracticeWhat type of reaction is:

2C4H10(g) + 13O2(g) 8CO2(g) + 10H2O(g)

1) Synthesis2) Decomposition3) Single Replacement4) Double Replacement5) CombustionPracticeWhat type of reaction is:

2H2O(g) 2H2(g) + O2(g)

1) Synthesis2) Decomposition3) Single Replacement4) Double Replacement5) CombustionPracticeWhat type of reaction is:

PbCl2(s) + 2HBr(g) PbBr2(s) + 2HCl(g)

1) Synthesis2) Decomposition3) Single Replacement4) Double Replacement5) CombustionDemonstration 1Reactants:Products:

Chemical Equation (unbalanced)

Chemical Equation (balanced)

Type of ReactionC12H22O11C H2OC12H22O11(s) C(s) + H2O(g)C12H22O11(s) 12C(s) +11 H2O(g)DecompositionDemonstration 2Reactants:Products:

Chemical Equation (unbalanced)

Chemical Equation (balanced)

Type of ReactionMgO2MgOMg(s) + O2(g) MgO(s)2Mg(s) + O2(g) 2MgO(s)SynthesisDemonstration 3Reactants:Products:

Chemical Equation (unbalanced)

Chemical Equation (balanced)

Type of ReactionPb(NO3)2NaOHPb(OH)2Pb(NO3)2(aq) + NaOH(aq) Pb(OH)2(s) + NaNO3(aq)Pb(NO3)2(aq) + 2NaOH(aq) Pb(OH)2(s) + 2NaNO3(aq)Double ReplacementNaNO3Demonstration 4Reactants:Products:

Chemical Equation (unbalanced)

Chemical Equation (balanced)

Type of ReactionMgHClMgCl2Mg(s) + HCl(aq) MgCl2(aq) +H2(g)Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g)Single ReplacementH2Demonstration 5Reactants:Products:

Chemical Equation (unbalanced)

Chemical Equation (balanced)

Type of ReactionCH4O2CO2CH4(g) + O2(g) CO2(g) + H2O(g)CH4(g) + 2O2(g) CO2(g) + 2H2O(g)CombustionH2O