Question 1

Which of the following is an ionic compound?

Accepted Answer

A) SCl2 
B) Mg3(PO4)2 
C) Cl2O 
D) CH2O 
E) PF5 
A) SCl2 
B) Mg3(PO4)2 
C) Cl2O 
D) CH2O 
E) PF5

Question 2

Which of the following is a molecular element?

Accepted Answer

A) Kr 
B) Ag 
C) S 
D) Mg 
E) Ti 
A) Kr 
B) Ag 
C) S 
D) Mg 
E) Ti

Question 3

Give the name for SnO.

Accepted Answer

A) tin (I)oxide 
B) tin (II)oxide 
C) tin (III)oxide 
D) tin (IV)oxide 
A) tin (I)oxide 
B) tin (II)oxide 
C) tin (III)oxide 
D) tin (IV)oxide

Question 4

Which of the following is a molecular element?

Accepted Answer

A) Mg 
B) Ar 
C) Xe 
D) I 
E) Li 
A) Mg 
B) Ar 
C) Xe 
D) I 
E) Li

Question 5

Write a possible molecular formula for C4H4O.

Accepted Answer

A) C8H8O2 
B) C12H12O2 
C) C2H2O 
D) C8H8O 
A) C8H8O2 
B) C12H12O2 
C) C2H2O 
D) C8H8O

Question 6

How many N2O4 molecules are contained in 76.3 g N2O4? The molar mass of N2O4 is 92.02 g/mol.

Accepted Answer

A) 5.54 × 1025 N2O4 molecules 
B) 7.26 × 1023 N2O4 molecules 
C) 1.38 × 1024 N2O4 molecules 
D) 4.59 × 1025 N2O4 molecules 
E) 4.99 × 1023 N2O4 molecules 
A) 5.54 × 1025 N2O4 molecules 
B) 7.26 × 1023 N2O4 molecules 
C) 1.38 × 1024 N2O4 molecules 
D) 4.59 × 1025 N2O4 molecules 
E) 4.99 × 1023 N2O4 molecules

Question 7

Write a balanced equation to show the reaction of sulfurous acid with lithium hydroxide to form water and lithium sulfite.

Accepted Answer

A) H2SO4(aq)+ LiOH(aq)→ H2O(l)+ Li2SO4(aq) 
B) H2SO3(aq)+ 2 LiOH(aq)→ 2 H2O(l)+ Li2SO3(aq) 
C) HSO3(aq)+ LiOH(aq)→ H2O(l)+ LiSO3(aq) 
D) HSO4(aq)+ LiOH(aq)→ H2O(l)+ LiSO4(aq) 
E) H2S(aq)+ 2 LiOH(aq)→ 2 H2O(l)+ Li2S(aq) 
A) H2SO4(aq)+ LiOH(aq)→ H2O(l)+ Li2SO4(aq) 
B) H2SO3(aq)+ 2 LiOH(aq)→ 2 H2O(l)+ Li2SO3(aq) 
C) HSO3(aq)+ LiOH(aq)→ H2O(l)+ LiSO3(aq) 
D) HSO4(aq)+ LiOH(aq)→ H2O(l)+ LiSO4(aq) 
E) H2S(aq)+ 2 LiOH(aq)→ 2 H2O(l)+ Li2S(aq)

Question 8

Which of the following is an atomic element?

Accepted Answer

A) Br 
B) H 
C) N 
D) O 
E) Mg 
A) Br 
B) H 
C) N 
D) O 
E) Mg

Question 9

The chemical formula for lithium peroxide is

Accepted Answer

A) LiOH. 
B) LiO2. 
C) Li2O. 
D) Li2O2. 
A) LiOH. 
B) LiO2. 
C) Li2O. 
D) Li2O2.

Question 10

Match the following.
-neon

Accepted Answer

A) I(s) 
B) Cl(g) 
C) O(g) 
D) Cl2(g) 
E) Ne2(g)
F)Ne(g)
G)Ca(s)
H)Q2(g)
I)I2(s)
J)Ca2(s) 
A) I(s) 
B) Cl(g) 
C) O(g) 
D) Cl2(g) 
E) Ne2(g)
F)Ne(g)
G)Ca(s)
H)Q2(g)
I)I2(s)
J)Ca2(s)

Question 11

Match the following.
-chlorine

Accepted Answer

A) I(s) 
B) Cl(g) 
C) O(g) 
D) Cl2(g) 
E) Ne2(g)
F)Ne(g)
G)Ca(s)
H)Q2(g)
I)I2(s)
J)Ca2(s) 
A) I(s) 
B) Cl(g) 
C) O(g) 
D) Cl2(g) 
E) Ne2(g)
F)Ne(g)
G)Ca(s)
H)Q2(g)
I)I2(s)
J)Ca2(s)

Question 12

Give the correct formula for aluminum sulfate.

Accepted Answer

A) Al22SO4 
B) Al(SO4)3 
C) Al3(SO4)2 
D) Al2(SO4)3 
A) Al22SO4 
B) Al(SO4)3 
C) Al3(SO4)2 
D) Al2(SO4)3

Question 13

Calculate the molar mass of Al(C2H3O2)3.

Accepted Answer

A) 86.03 g/mol 
B) 204.13 g/mol 
C) 56.00 g/mol 
D) 258.09 g/mol 
E) 139.99 g/mol 
A) 86.03 g/mol 
B) 204.13 g/mol 
C) 56.00 g/mol 
D) 258.09 g/mol 
E) 139.99 g/mol

Question 14

Determine the volume of hexane that contains 5.33 × 1022 molecules of hexane.The density of hexane is 0.6548 g/mL and its molar mass is 86.17 g/mol.

Accepted Answer

A) 8.59 mL 
B) 13.5 mL 
C) 7.40 mL 
D) 12.4 mL 
E) 11.6 mL 
A) 8.59 mL 
B) 13.5 mL 
C) 7.40 mL 
D) 12.4 mL 
E) 11.6 mL

Question 15

What is the molar mass of nitrogen gas?

Accepted Answer

A) 14.0 g/mol 
B) 28.0 g/mol 
C) 6.02 × 1023 g/mol 
D) 1.20 × 1023 g/mol 
A) 14.0 g/mol 
B) 28.0 g/mol 
C) 6.02 × 1023 g/mol 
D) 1.20 × 1023 g/mol

Question 16

How many millimoles of Ca(NO3)2 contain 4.78 × 1022 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164.10 g/mol.

Accepted Answer

A) 12.6 mmol Ca(NO3)2 
B) 13.0 mmol Ca(NO3)2 
C) 20.7 mmol Ca(NO3)2 
D) 79.4 mmol Ca(NO3)2 
E) 57.0 mmol Ca(NO3)2 
A) 12.6 mmol Ca(NO3)2 
B) 13.0 mmol Ca(NO3)2 
C) 20.7 mmol Ca(NO3)2 
D) 79.4 mmol Ca(NO3)2 
E) 57.0 mmol Ca(NO3)2

Question 17

Give the name for HNO2.

Accepted Answer

Question 18

The solid compound,Na4SiO4,contains

Accepted Answer

A) Na+,Si4+,and O2- ions. 
B) Na+ and SiO44- ions. 
C) Na4+ and SiO44- ions. 
D) Na4SiO4 molecules. 
A) Na+,Si4+,and O2- ions. 
B) Na+ and SiO44- ions. 
C) Na4+ and SiO44- ions. 
D) Na4SiO4 molecules.

Question 19

Calculate the mass percent composition of sulfur in Al2(SO4)3.

Accepted Answer

A) 28.12% 
B) 9.372% 
C) 42.73% 
D) 21.38% 
E) 35.97% 
A) 28.12% 
B) 9.372% 
C) 42.73% 
D) 21.38% 
E) 35.97%

Question 20

Can you predict the chemical formula for a covalent compound between nitrogen and oxygen? Explain your answer.

Accepted Answer

No,since nitrogen and oxygen a

Which of the following is an ionic compound?

Which of the following is a molecular element?

Give the name for SnO.

Which of the following is a molecular element?

Write a possible molecular formula for C₄H₄O.

How many N₂O₄ molecules are contained in 76.3 g N₂O₄? The molar mass of N₂O₄ is 92.02 g/mol.

Write a balanced equation to show the reaction of sulfurous acid with lithium hydroxide to form water and lithium sulfite.

Which of the following is an atomic element?

The chemical formula for lithium peroxide is

Match the following. -neon

Match the following. -chlorine

Give the correct formula for aluminum sulfate.

Calculate the molar mass of Al(C₂H₃O₂)₃.

Determine the volume of hexane that contains 5.33 × 10²² molecules of hexane.The density of hexane is 0.6548 g/mL and its molar mass is 86.17 g/mol.

What is the molar mass of nitrogen gas?

How many millimoles of Ca(NO₃)₂ contain 4.78 × 10²² formula units of Ca(NO₃)₂? The molar mass of Ca(NO₃)₂ is 164.10 g/mol.

Give the name for HNO₂.

The solid compound,Na₄SiO₄,contains

Calculate the mass percent composition of sulfur in Al₂(SO₄)₃.

Can you predict the chemical formula for a covalent compound between nitrogen and oxygen? Explain your answer.

Matter, Measurement, and Problem Solving

Atoms and Elements

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Exam 3: Molecules, Compounds and Chemical Equations

Which of the following is an ionic compound?

Which of the following is a molecular element?

Give the name for SnO.

Which of the following is a molecular element?

Write a possible molecular formula for C4H4O.

How many N2O4 molecules are contained in 76.3 g N2O4? The molar mass of N2O4 is 92.02 g/mol.

Write a balanced equation to show the reaction of sulfurous acid with lithium hydroxide to form water and lithium sulfite.

Which of the following is an atomic element?

The chemical formula for lithium peroxide is

Match the following. -neon

Match the following. -chlorine

Give the correct formula for aluminum sulfate.

Calculate the molar mass of Al(C2H3O2)3.

Determine the volume of hexane that contains 5.33 × 1022 molecules of hexane.The density of hexane is 0.6548 g/mL and its molar mass is 86.17 g/mol.

What is the molar mass of nitrogen gas?

How many millimoles of Ca(NO3)2 contain 4.78 × 1022 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164.10 g/mol.

Give the name for HNO2.

The solid compound,Na4SiO4,contains

Calculate the mass percent composition of sulfur in Al2(SO4)3.

Can you predict the chemical formula for a covalent compound between nitrogen and oxygen? Explain your answer.

Matter, Measurement, and Problem Solving

Atoms and Elements

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Write a possible molecular formula for C₄H₄O.

How many N₂O₄ molecules are contained in 76.3 g N₂O₄? The molar mass of N₂O₄ is 92.02 g/mol.

Calculate the molar mass of Al(C₂H₃O₂)₃.

Determine the volume of hexane that contains 5.33 × 10²² molecules of hexane.The density of hexane is 0.6548 g/mL and its molar mass is 86.17 g/mol.

How many millimoles of Ca(NO₃)₂ contain 4.78 × 10²² formula units of Ca(NO₃)₂? The molar mass of Ca(NO₃)₂ is 164.10 g/mol.

Give the name for HNO₂.

The solid compound,Na₄SiO₄,contains

Calculate the mass percent composition of sulfur in Al₂(SO₄)₃.