Question 1

Identify an amine.

Accepted Answer

A)  CH3CH2OCH2CH3 
B)  CH3CH2OH 
C)  CH3CH2NH2 
D)  CH3CH2CH2CH3 
E)  CH3COOH  
A)  CH3CH2OCH2CH3 
B)  CH3CH2OH 
C)  CH3CH2NH2 
D)  CH3CH2CH2CH3 
E)  CH3COOH

Question 2

Which of the following is a molecular element?

Accepted Answer

A)  krypton 
B)  silver 
C)  phosphorus 
D)  magnesium 
E)  titanium 
A)  krypton 
B)  silver 
C)  phosphorus 
D)  magnesium 
E)  titanium

Question 3

How can one compound contain both ionic and covalent bonds? Give an example.

Accepted Answer

An ionic compound that contains a polyat

Question 4

Which of the following exists as a diatomic molecule?

Accepted Answer

A)  oxygen 
B)  carbon 
C)  phosphorus 
D)  lithium 
E)  krypton 
A)  oxygen 
B)  carbon 
C)  phosphorus 
D)  lithium 
E)  krypton

Question 5

What is the chemical formula for iron(II)phosphate?

Accepted Answer

A)  Fe2P 
B)  Fe2PO4 
C)  Fe3P2 
D)  Fe3(PO4)2 
A)  Fe2P 
B)  Fe2PO4 
C)  Fe3P2 
D)  Fe3(PO4)2

Question 6

Give the name for HNO3.

Accepted Answer

A)  nitric acid 
B)  nitrous acid 
C)  hydrogen nitrate 
D)  hydrogen nitrite 
E)  hydrogen nitride 
A)  nitric acid 
B)  nitrous acid 
C)  hydrogen nitrate 
D)  hydrogen nitrite 
E)  hydrogen nitride

Question 7

Combustion analysis of 2.400 g of an unknown compound containing carbon,hydrogen,and oxygen produced 4.171 g of CO2 and 2.268 g of H2O.What is the empirical formula of the compound?

Accepted Answer

A)  C2H5O 
B)  C2H5O2 
C)  C2H10O3 
D)  C3H8O2 
A)  C2H5O 
B)  C2H5O2 
C)  C2H10O3 
D)  C3H8O2

Question 8

Write the name for Mg3(PO4)2.

Accepted Answer

A)  magnesium(III) phosphite 
B)  magnesium(II) phosphite 
C)  magnesium phosphate 
D)  trimagnesium phosphorustetraoxide 
E)  magnesium phosphite 
A)  magnesium(III) phosphite 
B)  magnesium(II) phosphite 
C)  magnesium phosphate 
D)  trimagnesium phosphorustetraoxide 
E)  magnesium phosphite

Question 9

Give the formula for calcium hydrogen sulfate.

Accepted Answer

A)  CaHSO3 
B)  Ca2(HSO3)2 
C)  Ca2HSO2 
D)  Ca(HSO4)2 
E)  CaSO3 
A)  CaHSO3 
B)  Ca2(HSO3)2 
C)  Ca2HSO2 
D)  Ca(HSO4)2 
E)  CaSO3

Question 10

How many sodium ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g/mol.

Accepted Answer

A)  1.52 × 1027 sodium ions 
B)  4.76 × 1020 sodium ions 
C)  2.10 × 1021 sodium ions 
D)  1.05 × 1021 sodium ions 
E)  9.52 × 1020 sodium ions 
A)  1.52 × 1027 sodium ions 
B)  4.76 × 1020 sodium ions 
C)  2.10 × 1021 sodium ions 
D)  1.05 × 1021 sodium ions 
E)  9.52 × 1020 sodium ions

Question 11

What is the mass of 0.500 mol of chlorotrifluoromethane,CClF3?

Accepted Answer

A)  4.78 × 10-3 g 
B)  52.2 g 
C)  104 g 
D)  209 g 
A)  4.78 × 10-3 g 
B)  52.2 g 
C)  104 g 
D)  209 g

Question 12

What is the structure of the covalent compound formed by nitrogen and oxygen? Is this the only possibility? Explain.

Accepted Answer

Since nitrogen and oxygen are

Question 13

Which of the following is a molecular compound?

Accepted Answer

A)  CuCl2 
B)  LiI 
C)  NaNO3 
D)  CH Cl3 
E)  RbBr 
A)  CuCl2 
B)  LiI 
C)  NaNO3 
D)  CH Cl3 
E)  RbBr

Question 14

Determine the number of moles of oxygen in 3.20 moles of sodium hydrogen phosphate.

Accepted Answer

A)  6.40 moles of oxygen 
B)  3.20 moles of oxygen 
C)  9.60 moles of oxygen 
D)  1.60 moles of oxygen 
E)  12.80 moles of oxygen 
A)  6.40 moles of oxygen 
B)  3.20 moles of oxygen 
C)  9.60 moles of oxygen 
D)  1.60 moles of oxygen 
E)  12.80 moles of oxygen

Question 15

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

Identify an amine.

Which of the following is a molecular element?

How can one compound contain both ionic and covalent bonds? Give an example.

Which of the following exists as a diatomic molecule?

What is the chemical formula for iron(II)phosphate?

Give the name for HNO₃.

Combustion analysis of 2.400 g of an unknown compound containing carbon,hydrogen,and oxygen produced 4.171 g of CO₂ and 2.268 g of H₂O.What is the empirical formula of the compound?

Write the name for Mg₃(PO₄)₂.

Give the formula for calcium hydrogen sulfate.

How many sodium ions are contained in 99.6 mg of Na₂SO₃? The molar mass of Na₂SO₃is 126.05 g/mol.

What is the mass of 0.500 mol of chlorotrifluoromethane,CClF₃?

What is the structure of the covalent compound formed by nitrogen and oxygen? Is this the only possibility? Explain.

Which of the following is a molecular compound?

Determine the number of moles of oxygen in 3.20 moles of sodium hydrogen phosphate.

Calculate the molar mass of Al(C₂H₃O₂)₃.

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,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Exam 3: Molecules,compounds,and Chemical Equations

Identify an amine.

Which of the following is a molecular element?

How can one compound contain both ionic and covalent bonds? Give an example.

Which of the following exists as a diatomic molecule?

What is the chemical formula for iron(II)phosphate?

Give the name for HNO3.

Combustion analysis of 2.400 g of an unknown compound containing carbon,hydrogen,and oxygen produced 4.171 g of CO2 and 2.268 g of H2O.What is the empirical formula of the compound?

Write the name for Mg3(PO4)2.

Give the formula for calcium hydrogen sulfate.

How many sodium ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g/mol.

What is the mass of 0.500 mol of chlorotrifluoromethane,CClF3?

What is the structure of the covalent compound formed by nitrogen and oxygen? Is this the only possibility? Explain.

Which of the following is a molecular compound?

Determine the number of moles of oxygen in 3.20 moles of sodium hydrogen phosphate.

Calculate the molar mass of Al(C2H3O2)3.

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,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Give the name for HNO₃.

Combustion analysis of 2.400 g of an unknown compound containing carbon,hydrogen,and oxygen produced 4.171 g of CO₂ and 2.268 g of H₂O.What is the empirical formula of the compound?

Write the name for Mg₃(PO₄)₂.

How many sodium ions are contained in 99.6 mg of Na₂SO₃? The molar mass of Na₂SO₃is 126.05 g/mol.

What is the mass of 0.500 mol of chlorotrifluoromethane,CClF₃?

Calculate the molar mass of Al(C₂H₃O₂)₃.