Question 1

What is the correct formula for the precipitate formed between NaNO3 and mercury nitrate?

Accepted Answer

A)  Hg2NO3 
B)  HgNO3)2 
C)  no reaction between NaNO3 and mercury nitrate 
A)  Hg2NO3 
B)  HgNO3)2 
C)  no reaction between NaNO3 and mercury nitrate

Question 2

What is the excess reactant in the combustion of 211 g of methane in an open atmosphere?

Accepted Answer

A)  water 
B)  methane 
C)  oxygen 
A)  water 
B)  methane 
C)  oxygen

Question 3

Which of the following is a weak base?

Accepted Answer

A)  sodium hydroxide 
B)  potassium hydroxide 
C)  ammonia 
A)  sodium hydroxide 
B)  potassium hydroxide 
C)  ammonia

Question 4

How many electrons are transferred during the oxidation of iron metal to form rust?

Accepted Answer

A)  3 electrons 
B)  6 electrons 
C)  12 electrons 
A)  3 electrons 
B)  6 electrons 
C)  12 electrons

Question 5

How many grams are in 2.57 moles of iron oxide?

Accepted Answer

A)  4.10 x 102 g 
B)  6.21 x 101 g 
C)  1.61 x 10-2 g 
A)  4.10 x 102 g 
B)  6.21 x 101 g 
C)  1.61 x 10-2 g

Question 6

What is the molar mass of laughing gas, N2O?

Accepted Answer

A)  46.0 g/mol 
B)  30.0 g/mol 
C)  44.0 g/mol 
A)  46.0 g/mol 
B)  30.0 g/mol 
C)  44.0 g/mol

Question 7

What is the oxidation number of oxygen in H2O2?

Accepted Answer

A)  -2 
B)  -1 
C)  0 
A)  -2 
B)  -1 
C)  0

Question 8

Which of the following is a weak acid?

Accepted Answer

A)  acetic acid 
B)  sulfuric acid 
C)  perchloric acid 
A)  acetic acid 
B)  sulfuric acid 
C)  perchloric acid

Question 9

Propane is used as a fuel source on many barbeque grills. What is undergoing reduction during the burning of propane while grilling?  Paired item 1)

Accepted Answer

A)  CH3CH2CH3 
B)  O2 
C)  CO2 
A)  CH3CH2CH3 
B)  O2 
C)  CO2

Question 10

Propane is used as a fuel source on many barbeque grills. What is undergoing oxidation during the burning of propane while grilling?

Accepted Answer

A)  CH3CH2CH3 
B)  O2 
C)  CO2 
A)  CH3CH2CH3 
B)  O2 
C)  CO2

Question 11

Which of the following is a strong acid when mixed in water?

Accepted Answer

A)  HClO 
B)  HBr 
C)  HNO2 
A)  HClO 
B)  HBr 
C)  HNO2

Question 12

What is the correct name for the salt formed between KOH and HCl?

Accepted Answer

A)  potassium hydride 
B)  potassium chloride 
C)  potassium hydroxide 
A)  potassium hydride 
B)  potassium chloride 
C)  potassium hydroxide

Question 13

The chemical reaction CaCO3 $\rightarrow$ CaO + CO2 is classified as a

Accepted Answer

A)  synthesis reaction 
B)  decomposition reaction 
C)  single-replacement reaction 
A)  synthesis reaction 
B)  decomposition reaction 
C)  single-replacement reaction

Question 14

What is the net ionic equation for the reaction between CoCl2 and an alkali hydroxide?

Accepted Answer

A)  Co2+aq) + 2OH-aq) $\rightarrow$  CoOH)2s) 
B)  Na+aq) + Cl-aq) $\rightarrow$  NaCls) 
C)  Co3+aq) + 3OH-aq) $\rightarrow$  CoOH)3s) 
A)  Co2+aq) + 2OH-aq) $\rightarrow$  CoOH)2s) 
B)  Na+aq) + Cl-aq) $\rightarrow$  NaCls) 
C)  Co3+aq) + 3OH-aq) $\rightarrow$  CoOH)3s)

Question 15

What is the oxidation number of oxygen gas in the combustion of pentane reaction?

Accepted Answer

A)  0 
B)  -1 
C)  -2 
A)  0 
B)  -1 
C)  -2

Question 16

What are the products of the reaction between barium hydroxide and hydrogen chloride?

Accepted Answer

A)  Barium chloride and water 
B)  Barium hydroxide and water 
C)  Barium chloride and barium hydride 
A)  Barium chloride and water 
B)  Barium hydroxide and water 
C)  Barium chloride and barium hydride

Question 17

How is a gas phase represented in a chemical reaction?

Accepted Answer

A)  s) 
B)  g) 
C)  l) 
A)  s) 
B)  g) 
C)  l)

Question 18

What precipitate forms when mixing leadII) nitrate and sodium iodide?  Paired item 2)

Accepted Answer

A)  sodium nitrate 
B)  leadII) iodide 
C)  no precipitate forms 
A)  sodium nitrate 
B)  leadII) iodide 
C)  no precipitate forms

Question 19

If 1.50 moles of nitrogen gas reacts with an excess of hydrogen gas, what mass of ammonia would be produced?

Accepted Answer

A)  34.1 g 
B)  51.1 g 
C)  25.5 g 
A)  34.1 g 
B)  51.1 g 
C)  25.5 g

Question 20

The reaction NH3aq) + H2Ol) $\rightarrow$  OH-aq) + NH4+aq) is an example of _____?

Accepted Answer

A)  a combustion reaction 
B)  an acid-base reaction 
C)  a precipitation reaction 
A)  a combustion reaction 
B)  an acid-base reaction 
C)  a precipitation reaction

What is the correct formula for the precipitate formed between NaNO₃ and mercury nitrate?

What is the excess reactant in the combustion of 211 g of methane in an open atmosphere?

Which of the following is a weak base?

How many electrons are transferred during the oxidation of iron metal to form rust?

How many grams are in 2.57 moles of iron oxide?

What is the molar mass of laughing gas, N₂O?

What is the oxidation number of oxygen in H₂O₂?

Which of the following is a weak acid?

Propane is used as a fuel source on many barbeque grills. What is undergoing reduction during the burning of propane while grilling? Paired item 1)

Propane is used as a fuel source on many barbeque grills. What is undergoing oxidation during the burning of propane while grilling?

Which of the following is a strong acid when mixed in water?

What is the correct name for the salt formed between KOH and HCl?

The chemical reaction CaCO₃ $\rightarrow$ CaO + CO₂ is classified as a

What is the net ionic equation for the reaction between CoCl₂ and an alkali hydroxide?

What is the oxidation number of oxygen gas in the combustion of pentane reaction?

What are the products of the reaction between barium hydroxide and hydrogen chloride?

How is a gas phase represented in a chemical reaction?

What precipitate forms when mixing leadII) nitrate and sodium iodide? Paired item 2)

If 1.50 moles of nitrogen gas reacts with an excess of hydrogen gas, what mass of ammonia would be produced?

The reaction NH₃aq) + H₂Ol) $\rightarrow$ OH^-aq) + NH₄⁺aq) is an example of _____?

Essential Ideas

Atoms, Molecules, and Ions

Composition of Substances and Solutions

Thermochemistry

Electronic Structure and Periodic Properties of Elements

Chemical Bonding and Molecular Geometry

Advanced Theories of Covalent Bonding

Gases

Liquids and Solids

Solutions and Colloids

Kinetics

Fundamental Equilibrium Concepts

Acid-Base Equilibria

Thermodynamics

Electrochemistry

Representative Metals, Metalloids, and Nonmetals

Organic Chemistry

Nuclear Chemistry

Filters

Exam 4: Stoichiometry of Chemical Reactions

What is the correct formula for the precipitate formed between NaNO3 and mercury nitrate?

What is the excess reactant in the combustion of 211 g of methane in an open atmosphere?

Which of the following is a weak base?

How many electrons are transferred during the oxidation of iron metal to form rust?

How many grams are in 2.57 moles of iron oxide?

What is the molar mass of laughing gas, N2O?

What is the oxidation number of oxygen in H2O2?

Which of the following is a weak acid?

Propane is used as a fuel source on many barbeque grills. What is undergoing reduction during the burning of propane while grilling? Paired item 1)

Propane is used as a fuel source on many barbeque grills. What is undergoing oxidation during the burning of propane while grilling?

Which of the following is a strong acid when mixed in water?

What is the correct name for the salt formed between KOH and HCl?

The chemical reaction CaCO3 →\rightarrow→ CaO + CO2 is classified as a

What is the net ionic equation for the reaction between CoCl2 and an alkali hydroxide?

What is the oxidation number of oxygen gas in the combustion of pentane reaction?

What are the products of the reaction between barium hydroxide and hydrogen chloride?

How is a gas phase represented in a chemical reaction?

What precipitate forms when mixing leadII) nitrate and sodium iodide? Paired item 2)

If 1.50 moles of nitrogen gas reacts with an excess of hydrogen gas, what mass of ammonia would be produced?

The reaction NH3aq) + H2Ol) →\rightarrow→ OH-aq) + NH4+aq) is an example of _____?

Essential Ideas

Atoms, Molecules, and Ions

Composition of Substances and Solutions

Thermochemistry

Electronic Structure and Periodic Properties of Elements

Chemical Bonding and Molecular Geometry

Advanced Theories of Covalent Bonding

Gases

Liquids and Solids

Solutions and Colloids

Kinetics

Fundamental Equilibrium Concepts

Acid-Base Equilibria

Thermodynamics

Electrochemistry

Representative Metals, Metalloids, and Nonmetals

Organic Chemistry

Nuclear Chemistry

Filters

What is the correct formula for the precipitate formed between NaNO₃ and mercury nitrate?

What is the molar mass of laughing gas, N₂O?

What is the oxidation number of oxygen in H₂O₂?

The chemical reaction CaCO₃ $\rightarrow$ CaO + CO₂ is classified as a

What is the net ionic equation for the reaction between CoCl₂ and an alkali hydroxide?

The reaction NH₃aq) + H₂Ol) $\rightarrow$ OH^-aq) + NH₄⁺aq) is an example of _____?