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Chapter 5

Molecules and Compounds

Laurie LeBlancCuyamaca College

Clicker Questions

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A. 13.3 gB. 185 gC. 228 g D. 312 gE. 553 g

The mass ratio of lead to sulfur in lead(II) sulfide is 270.0 g lead to 41.8 g sulfur. How much lead is required to completely react with 85.6 g of sulfur?

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A. 13.3 gB. 185 gC. 228 g D. 312 gE. 553 g

The mass ratio of lead to sulfur in lead(II) sulfide is 270.0 g lead to 41.8 g sulfur. How much lead is required to completely react with 85.6 g of sulfur?

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A. 1B. 3C. 4 D. 7E. 12

How many hydrogen atoms are in the formula for ammonium phosphate, (NH4)3PO4?

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A. 1B. 3C. 4 D. 7E. 12

How many hydrogen atoms are in the formula for ammonium phosphate, (NH4)3PO4?

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What is the hydrogen to carbon mass ratio of methane (CH4)?

A. 1B. 0.33C. 3D. 4E. 0.25

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What is the hydrogen to carbon mass ratio of methane (CH4)?

A. 1B. 0.33C. 3D. 4E. 0.25

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A. 2P5OB. P2O5

C. OPD. P2.5OE. P5O2

Which is the chemical formula of the compound containing two phosphorus atoms and five oxygen atoms?

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A. 2P5OB. P2O5

C. OPD. P2.5OE. P5O2

Which is the chemical formula of the compound containing two phosphorus atoms and five oxygen atoms?

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A. 3B. 4C. 6D. 12E. 24

What is the total number of atoms in a molecule of glucose, C6H12O6?

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A. 3B. 4C. 6D. 12E. 24

What is the total number of atoms in a molecule of glucose, C6H12O6?

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A. 42 B. 40C. 34D. 5E. 1

How many different kinds of atoms are in a molecule of penicillin, C14H20N2SO4?

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A. 42 B. 40C. 34D. 5E. 1

How many different kinds of atoms are in a molecule of penicillin, C14H20N2SO4?

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Which of these elements is a diatomic gas at room temperature?

A. Bromine B. Iodine C. Neon D. ChlorineE. Sulfur

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Which of these elements is a diatomic gas at room temperature?

A. Bromine B. Iodine C. Neon D. ChlorineE. Sulfur

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A. MercuryB. NaClC. Oxygen gasD. CO2

E. H2

Which of the following species is an atomic element?

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A. MercuryB. NaClC. Oxygen gasD. CO2

E. H2

Which of the following species is an atomic element?

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Aluminum carbonate is considered which of the following?

A. Atomic element B. Molecular element C. Molecular compoundD. Ionic compoundE. Diatomic molecule

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Aluminum carbonate is considered which of the following?

A. Atomic element B. Molecular element C. Molecular compoundD. Ionic compoundE. Diatomic molecule

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A. 4B. 6C. 3D. 10E. 7

How many elements occur as diatomic molecules?

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A. 4B. 6C. 3D. 10E. 7

How many elements occur as diatomic molecules?

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What is the formula of the compound formed from lithium and nitrogen?

A. LiN2

B. Li2N3

C. Li3N2

D. Li3NE. LiN

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What is the formula of the compound formed from lithium and nitrogen?

A. LiN2

B. Li2N3

C. Li3N2

D. Li3NE. LiN

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The name of the compound AgCl is

A. silver chlorine. B. silver chloride.C. silver(I) chloride.D. silver

monochloride.E. monosilver

monochloride.

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A. silver chlorine. B. silver chloride.C. silver(I) chloride.D. silver

monochloride.E. monosilver

monochloride.

The name of the compound AgCl is

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A. iron oxide. B. iron(II) oxide.C. iron(III) oxide.D. diiron trioxide.E. iron(II) oxide(III).

The name of the compound Fe2O3 is

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A. iron oxide. B. iron(II) oxide.C. iron(III) oxide.D. diiron trioxide.E. iron(II) oxide(III).

The name of the compound Fe2O3 is

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A. SO4– and SO3

– B. SO3

– and SO4–

C. SO42– and SO3

2–

D. SO32– and SO4

2–

E. SO42– and SO3

–

Identify the formulas of the following oxyanions in their correct order: sulfate ion and sulfite ion.

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A. SO4– and SO3

– B. SO3

– and SO4–

C. SO42– and SO3

2–

D. SO32– and SO4

2–

E. SO42– and SO3

–

Identify the formulas of the following oxyanions in their correct order: sulfate ion and sulfite ion.

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A. NH3+

B. NH3

C. NH42+

D. NH4

E. NH4+

What is the formula of the ammonium ion?

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A. NH3+

B. NH3

C. NH42+

D. NH4

E. NH4+

What is the formula of the ammonium ion?

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A. Hydroxide ion, carbonate ion, phosphate ion B. Oxide ion, carbonate ion, phosphate ionC. Hydroxide ion, carbonate ion, phosphite ionD. Hydroxide ion, carbonite ion, phosphate ionE. Oxide ion, carbonate ion, phosphite ion

Name the following polyatomic ions in their listed order: OH–, CO3

2–, and PO43–.

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A. Hydroxide ion, carbonate ion, phosphate ion B. Oxide ion, carbonate ion, phosphate ionC. Hydroxide ion, carbonate ion, phosphite ionD. Hydroxide ion, carbonite ion, phosphate ionE. Oxide ion, carbonate ion, phosphite ion

Name the following polyatomic ions in their listed order: OH–, CO3

2–, and PO43–.

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The name of the compound NH4ClO4 is

A. ammonium chloride. B. ammonium chlorite.C. ammonium

hypochlorite.D. ammonium chlorate.E. ammonium

perchlorate.

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A. ammonium chloride. B. ammonium chlorite.C. ammonium

hypochlorite.D. ammonium chlorate.E. ammonium

perchlorate.

The name of the compound NH4ClO4 is

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A. stannium oxide.B. stannium(II) oxide.C. stannium(IV) oxide.D. tin(II) oxide.E. tin(IV) oxide.

The name of the compound SnO2 is

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A. stannium oxide.B. stannium(II) oxide.C. stannium(IV) oxide.D. tin(II) oxide.E. tin(IV) oxide.

The name of the compound SnO2 is

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A. phosphorus iodide.B. monophosphorus

triiodide.C. phosphorus

triiodide.D. phosphorus(III)

iodide.E. potassium iodide.

The name of the compound PI3 is

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A. phosphorus iodide.B. monophosphorus

triiodide.C. phosphorus

triiodide.D. phosphorus(III)

iodide.E. potassium iodide.

The name of the compound PI3 is

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A. cyanic acid. B. hydrogen cyanide.C. percyanic acid.D. hydrocyanic acid.E. hypocyanous acid.

The name of the compound HCN(aq) is

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A. cyanic acid. B. hydrogen cyanide.C. percyanic acid.D. hydrocyanic acid.E. hypocyanous acid.

The name of the compound HCN(aq) is

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A. hydrochloric acid. B. hydrogen chloride.C. hypochlorous acid.D. chloric acid.E. hypochloric acid.

The name of the compound HCl(g) is

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A. hydrochloric acid. B. hydrogen chloride.C. hypochlorous acid.D. chloric acid.E. hypochloric acid.

The name of the compound HCl(g) is

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A. HClOB. HClO2

C. HClO3

D. HClO4

E. HClO5

Which is the correct formula for chloric acid?

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A. HClOB. HClO2

C. HClO3

D. HClO4

E. HClO5

Which is the correct formula for chloric acid?

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Which is the correct formula for nickel(II) carbonate?

A. NiCO3 B. Ni2CO3

C. Ni(CO3)2

D. NiCE. Ni3(CO2)2

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Which is the correct formula for nickel(II) carbonate?

A. NiCO3 B. Ni2CO3

C. Ni(CO3)2

D. NiCE. Ni3(CO2)2

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A. NH4Cr2 B. NH4Cr2O4

C. (NH4)2Cr2O4 D. NH4Cr2O7

E. (NH4)2Cr2O7

Which is the correct formula for ammonium dichromate?

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A. NH4Cr2 B. NH4Cr2O4

C. (NH4)2Cr2O4 D. NH4Cr2O7

E. (NH4)2Cr2O7

Which is the correct formula for ammonium dichromate?

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A. N2H3

B. N2H4

C. N2H5

D. Ni2H4

E. N2OH4

What is the correct formula for dinitrogen tetrahydride?

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A. N2H3

B. N2H4

C. N2H5

D. Ni2H4

E. N2OH4

What is the correct formula for dinitrogen tetrahydride?

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A. HF (aq), hypofluorousacid

B. Na2HCO3, sodium bicarbonate

C. PbO2, lead oxideD. SF6, sulfur

heptafluorideE. HNO2, nitrous acid

Which of the following contains the correct formula and name?

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A. HF (aq), hypofluorousacid

B. Na2HCO3, sodium bicarbonate

C. PbO2, lead oxideD. SF6, sulfur

heptafluorideE. HNO2, nitrous acid

Which of the following contains the correct formula and name?

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A. H2SO4(aq), sulfuric acid

B. SiO2, silicon dioxideC. CuCl2, copper(II)

chlorideD. Zn(OH)2, zinc(II)

hydroxideE. NaClO, sodium hypochlorite

Which of the following is named incorrectly?

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A. H2SO4(aq), sulfuric acid

B. SiO2, silicon dioxideC. CuCl2, copper(II)

chlorideD. Zn(OH)2, zinc(II)

hydroxideE. NaClO, sodium hypochlorite

Which of the following is named incorrectly?

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What is the formula mass of sodium sulfite?

A. 215.1 amu B. 119.1 amuC. 126.0 amuD. 142.1 amuE. 125.1 amu

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What is the formula mass of sodium sulfite?

A. 215.1 amu B. 119.1 amuC. 126.0 amuD. 142.1 amuE. 125.1 amu

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What is the formula mass of (NH4)2SO4?

A. 215.1 amu B. 119.1 amuC. 126.0 amuD. 132.1 amuE. 114.1 amu

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What is the formula mass of (NH4)2SO4?

A. 215.1 amu B. 119.1 amuC. 126.0 amuD. 132.1 amuE. 114.1 amu

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A. 1B. 3C. 4 D. 7E. 12

How many nitrogen atoms are in the formula for ammonium phosphate, (NH4)3PO4?

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A. 1B. 3C. 4 D. 7E. 12

How many nitrogen atoms are in the formula for ammonium phosphate, (NH4)3PO4?

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A. Diatomic moleculesB. AtomsC. Molecules D. Formula unitsE. Monomers

What are the basic units of the compound sodium chloride?

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A. Diatomic moleculesB. AtomsC. Molecules D. Formula unitsE. Monomers

What are the basic units of the compound sodium chloride?

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A. N3–

B. HCl(aq)C. NO3

–

D. NH4+

E. Two of the above

Which of the following are polyatomic ions?

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A. N3–

B. HCl(aq)C. NO3

–

D. NH4+

E. Two of the above

Which of the following are polyatomic ions?

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A. Diiodine pentoxygenB. Diiodine tetroxideC. Pentoxide of iodineD. Iodine oxideE. Diiodine pentoxide

How is the compound I2O5 named?

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A. Diiodine pentoxygenB. Diiodine tetroxideC. Pentoxide of iodineD. Iodine oxideE. Diiodine pentoxide

How is the compound I2O5 named?