Question 1

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 2

What is the formula for the acetate polyatomic ion?

Accepted Answer

A) C3H2O3- 
B) C2H3O22- 
C) C2H3O2- 
D) C2H3O- 
E) none of the above 
A) C3H2O3- 
B) C2H3O22- 
C) C2H3O2- 
D) C2H3O- 
E) none of the above

Question 3

When elements combine to form compounds,their properties only change slightly.

Accepted Answer

A) True 
 B)False

Question 4

What is the name of HNO2?

Accepted Answer

A) nitric acid 
B) nitrous acid 
C) hydronitrous acid 
D) hydronitric acid 
E) none of the above 
A) nitric acid 
B) nitrous acid 
C) hydronitrous acid 
D) hydronitric acid 
E) none of the above

Question 5

In ionic compounds the net positive charge always equals the net negative charge.

Accepted Answer

A) True 
 B)False

Question 6

What is correct name of the compound whose formula is N2O4?

Accepted Answer

A) nitrogen dioxide 
B) nitrogen tetroxide 
C) dinitrogen oxide 
D) dinitrogen tetroxide 
E) none of the above 
A) nitrogen dioxide 
B) nitrogen tetroxide 
C) dinitrogen oxide 
D) dinitrogen tetroxide 
E) none of the above

Question 7

Life could not exist with just 91 elements if they did not combine to form compounds.

Accepted Answer

A) True 
 B)False

Question 8

Metal cations that form more than one type of ion are usually found in the section of the periodic table known as the transition metals.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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 11

How many O atoms are present in sodium chlorite?

Accepted Answer

A) 2 
B) 6 
C) 4 
D) 1 
E) none of the above 
A) 2 
B) 6 
C) 4 
D) 1 
E) none of the above

Question 12

Suppose that in an ionic compound,"M" represents a metal that could form more than one type of ion.In the formula MP ,the charge of the M ion would be:

Accepted Answer

A) +1 
B) -1 
C) +2 
D) -3 
E) +3 
A) +1 
B) -1 
C) +2 
D) -3 
E) +3

Question 13

Suppose that in an ionic compound,"M" represents a metal that could form more than one type of ion.In the formula MF2 ,the charge of the M ion would be:

Accepted Answer

A) +2 
B) -1 
C) +4 
D) -2 
E) +1 
A) +2 
B) -1 
C) +4 
D) -2 
E) +1

Question 14

Which of the following species is a molecular element?

Accepted Answer

A) neon 
B) sodium 
C) chlorine 
D) carbon dioxide 
E) none of the above 
A) neon 
B) sodium 
C) chlorine 
D) carbon dioxide 
E) none of the above

Question 15

Ionic compounds have a net charge of zero.

Accepted Answer

A) True 
 B)False

Question 16

A compound has a formula mass of 61.98 amu and is comprised of atoms of sodium and oxygen in a definite ratio.The name of the compound described here is:

Accepted Answer

A) sodium monoxide. 
B) disodium oxide. 
C) sodium oxide. 
D) sodium dioxide. 
E) none of the above 
A) sodium monoxide. 
B) disodium oxide. 
C) sodium oxide. 
D) sodium dioxide. 
E) none of the above

Question 17

Carbonic acid,H2CO3 ,contains the carbonate oxyanion.

Accepted Answer

A) True 
 B)False

Question 18

Choose the pair of names and formulas that do NOT match.

Accepted Answer

A) copper(I)nitrate: CuNO3 
B) copper(II)nitride: Cu3N2 
C) copper(II)nitrate: Cu(NO3)2 
D) copper(II)nitrite: Cu(NO2)2 
E) all of these are correct 
A) copper(I)nitrate: CuNO3 
B) copper(II)nitride: Cu3N2 
C) copper(II)nitrate: Cu(NO3)2 
D) copper(II)nitrite: Cu(NO2)2 
E) all of these are correct

Question 19

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 20

SO2 is an ionic compound.

Accepted Answer

A) True 
 B)False

A certain oxyacid is derived from the oxyanion SO₃^2-.The formula for the oxyacid is:

What is the formula for the acetate polyatomic ion?

When elements combine to form compounds,their properties only change slightly.

What is the name of HNO₂?

In ionic compounds the net positive charge always equals the net negative charge.

What is correct name of the compound whose formula is N₂O₄?

Life could not exist with just 91 elements if they did not combine to form compounds.

Metal cations that form more than one type of ion are usually found in the section of the periodic table known as the transition metals.

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

Which formula shown is incorrect for the name given?

How many O atoms are present in sodium chlorite?

Suppose that in an ionic compound,"M" represents a metal that could form more than one type of ion.In the formula MP ,the charge of the M ion would be:

Suppose that in an ionic compound,"M" represents a metal that could form more than one type of ion.In the formula MF₂ ,the charge of the M ion would be:

Which of the following species is a molecular element?

Ionic compounds have a net charge of zero.

A compound has a formula mass of 61.98 amu and is comprised of atoms of sodium and oxygen in a definite ratio.The name of the compound described here is:

Carbonic acid,H₂CO₃,contains the carbonate oxyanion.

Choose the pair of names and formulas that do NOT match.

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

SO₂ is an ionic compound.

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Exam 5: Molecules and Compounds

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

What is the formula for the acetate polyatomic ion?

When elements combine to form compounds,their properties only change slightly.

What is the name of HNO2?

In ionic compounds the net positive charge always equals the net negative charge.

What is correct name of the compound whose formula is N2O4?

Life could not exist with just 91 elements if they did not combine to form compounds.

Metal cations that form more than one type of ion are usually found in the section of the periodic table known as the transition metals.

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

Which formula shown is incorrect for the name given?

How many O atoms are present in sodium chlorite?

Suppose that in an ionic compound,"M" represents a metal that could form more than one type of ion.In the formula MP ,the charge of the M ion would be:

Suppose that in an ionic compound,"M" represents a metal that could form more than one type of ion.In the formula MF2 ,the charge of the M ion would be:

Which of the following species is a molecular element?

Ionic compounds have a net charge of zero.

A compound has a formula mass of 61.98 amu and is comprised of atoms of sodium and oxygen in a definite ratio.The name of the compound described here is:

Carbonic acid,H2CO3 ,contains the carbonate oxyanion.

Choose the pair of names and formulas that do NOT match.

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

SO2 is an ionic 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 SO₃^2-.The formula for the oxyacid is:

What is the name of HNO₂?

What is correct name of the compound whose formula is N₂O₄?

Suppose that in an ionic compound,"M" represents a metal that could form more than one type of ion.In the formula MF₂ ,the charge of the M ion would be:

Carbonic acid,H₂CO₃,contains the carbonate oxyanion.

SO₂ is an ionic compound.