Question 1

Molecular elements do not exist in nature.

Accepted Answer

A) True 
 B)False

Question 2

What is the formula for an ionic compound made of magnesium and sulfur?

Accepted Answer

A) MgS 
B) MgS2 
C) Mg2S 
D) Mg2S3 
E) none of the above 
A) MgS 
B) MgS2 
C) Mg2S 
D) Mg2S3 
E) none of the above

Question 3

The properties of a compound are an average of the properties of the individual elements.

Accepted Answer

A) True 
 B)False

Question 4

A certain oxyacid is derived from the oxyanion SO32-.The formula for the oxyacid is

Accepted Answer

A) H2SO4. 
B) HSO3. 
C) H2SO3. 
D) H3SO3. 
E) none of the above 
A) H2SO4. 
B) HSO3. 
C) H2SO3. 
D) H3SO3. 
E) none of the above

Question 5

The correct formula for calcium fluoride is CaF3.

Accepted Answer

A) True 
 B)False

Question 6

Carbon monoxide is considered which of the following?

Accepted Answer

A) atomic element 
B) molecular element 
C) molecular compound 
D) ionic compound 
E) none of the above 
A) atomic element 
B) molecular element 
C) molecular compound 
D) ionic compound 
E) none of the above

Question 7

Ionic compounds are usually made up of a metal and a nonmetal.

Accepted Answer

A) True 
 B)False

Question 8

What is the mass ratio of Na to S in sodium sulfide?

Accepted Answer

A) 7.17 
B) 55.06 
C) 0.717 
D) 1.43 
E) none of the above 
A) 7.17 
B) 55.06 
C) 0.717 
D) 1.43 
E) none of the above

Question 9

How many of each type of atom are there in the formula (NH4)2HPO4?

Accepted Answer

A) N = 2,H = 9,P = 1,O = 4 
B) N = 1,H = 5,P = 1,O = 4 
C) N = 2,H = 5,P = 1,O = 4 
D) N = 2,H = 8,P = 1,O = 4 
E) none of the above 
A) N = 2,H = 9,P = 1,O = 4 
B) N = 1,H = 5,P = 1,O = 4 
C) N = 2,H = 5,P = 1,O = 4 
D) N = 2,H = 8,P = 1,O = 4 
E) none of the above

Question 10

The proper name for the acid HF is hydrofluoric acid.

Accepted Answer

A) True 
 B)False

Question 11

The law of constant composition states: All samples of a given compound have the same proportions of their constituent elements.

Accepted Answer

A) True 
 B)False

Question 12

The element nitrogen normally exists in nature as a diatomic molecule.

Accepted Answer

A) True 
 B)False

Question 13

The proper name for SF6 is sulfur tetrafluoride.

Accepted Answer

A) True 
 B)False

Question 14

The oxygen-to-hydrogen mass ratio of water is always 8.0 is an example of what fundamental law?

Accepted Answer

A) Law of Constant Composition 
B) Law of Constant Mass Ratio 
C) Law of Conservation of Mass 
D) Law of Constant Whole Number Ratio 
E) none of the above 
A) Law of Constant Composition 
B) Law of Constant Mass Ratio 
C) Law of Conservation of Mass 
D) Law of Constant Whole Number Ratio 
E) none of the above

Question 15

How many carbon atoms are in the formula Al2(CO3)3?

Accepted Answer

A) 3 
B) 9 
C) 1 
D) 6 
E) none of the above 
A) 3 
B) 9 
C) 1 
D) 6 
E) none of the above

Question 16

The correct formula for sodium permanganate is NaMgO4.

Accepted Answer

A) True 
 B)False

Question 17

What is the formula for an ionic compound made of carbon and oxygen?

Accepted Answer

A) CO2 
B) C2O 
C) CO 
D) CO3 
E) Carbon and oxygen do not form an ionic compound. 
A) CO2 
B) C2O 
C) CO 
D) CO3 
E) Carbon and oxygen do not form an ionic compound.

Question 18

Which formula shown is incorrect for the name given?

Accepted Answer

A) strontium carbonate: SrCO3 
B) ammonium cyanide: NH4CN 
C) potassium acetate: KC2H3O2 
D) calcium nitrate: Ca(NO3)2 
E) lithium sulfate: LiSO4 
A) strontium carbonate: SrCO3 
B) ammonium cyanide: NH4CN 
C) potassium acetate: KC2H3O2 
D) calcium nitrate: Ca(NO3)2 
E) lithium sulfate: LiSO4

Question 19

What is the formula mass of sulfurous acid?

Accepted Answer

A) 82.08 amu 
B) 98.08 amu 
C) 83.09 amu 
D) 66.08 amu 
E) none of the above 
A) 82.08 amu 
B) 98.08 amu 
C) 83.09 amu 
D) 66.08 amu 
E) none of the above

Question 20

Carbon dioxide is an example of a molecular compound.

Accepted Answer

A) True 
 B)False

Molecular elements do not exist in nature.

What is the formula for an ionic compound made of magnesium and sulfur?

The properties of a compound are an average of the properties of the individual elements.

A certain oxyacid is derived from the oxyanion SO₃²^-.The formula for the oxyacid is

The correct formula for calcium fluoride is CaF₃.

Carbon monoxide is considered which of the following?

Ionic compounds are usually made up of a metal and a nonmetal.

What is the mass ratio of Na to S in sodium sulfide?

How many of each type of atom are there in the formula (NH₄)₂HPO₄?

The proper name for the acid HF is hydrofluoric acid.

The law of constant composition states: All samples of a given compound have the same proportions of their constituent elements.

The element nitrogen normally exists in nature as a diatomic molecule.

The proper name for SF₆ is sulfur tetrafluoride.

The oxygen-to-hydrogen mass ratio of water is always 8.0 is an example of what fundamental law?

How many carbon atoms are in the formula Al₂(CO₃)₃?

The correct formula for sodium permanganate is NaMgO₄.

What is the formula for an ionic compound made of carbon and oxygen?

Which formula shown is incorrect for the name given?

What is the formula mass of sulfurous acid?

Carbon dioxide is an example of a molecular compound.

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids,solids,and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 5: Molecules and Compounds

Molecular elements do not exist in nature.

What is the formula for an ionic compound made of magnesium and sulfur?

The properties of a compound are an average of the properties of the individual elements.

A certain oxyacid is derived from the oxyanion SO32-.The formula for the oxyacid is

The correct formula for calcium fluoride is CaF3.

Carbon monoxide is considered which of the following?

Ionic compounds are usually made up of a metal and a nonmetal.

What is the mass ratio of Na to S in sodium sulfide?

How many of each type of atom are there in the formula (NH4)2HPO4?

The proper name for the acid HF is hydrofluoric acid.

The law of constant composition states: All samples of a given compound have the same proportions of their constituent elements.

The element nitrogen normally exists in nature as a diatomic molecule.

The proper name for SF6 is sulfur tetrafluoride.

The oxygen-to-hydrogen mass ratio of water is always 8.0 is an example of what fundamental law?

How many carbon atoms are in the formula Al2(CO3)3?

The correct formula for sodium permanganate is NaMgO4.

What is the formula for an ionic compound made of carbon and oxygen?

Which formula shown is incorrect for the name given?

What is the formula mass of sulfurous acid?

Carbon dioxide is an example of a molecular compound.

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids,solids,and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

A certain oxyacid is derived from the oxyanion SO₃²^-.The formula for the oxyacid is

The correct formula for calcium fluoride is CaF₃.

How many of each type of atom are there in the formula (NH₄)₂HPO₄?

The proper name for SF₆ is sulfur tetrafluoride.

How many carbon atoms are in the formula Al₂(CO₃)₃?

The correct formula for sodium permanganate is NaMgO₄.