Question 1

Write a balanced reaction for the neutralization of HBr upon the addition of KOH.

Accepted Answer

A)  HBraq) + KOHaq) $\rightarrow$  KBraq) + H2Ol) 
B)  HBraq) + KOHaq) $\rightarrow$  KBrs) + H2Ol) 
C)  HBraq) + KOHaq) $\rightarrow$  KBrl) + H2Ol) 
A)  HBraq) + KOHaq) $\rightarrow$  KBraq) + H2Ol) 
B)  HBraq) + KOHaq) $\rightarrow$  KBrs) + H2Ol) 
C)  HBraq) + KOHaq) $\rightarrow$  KBrl) + H2Ol) A

Question 2

Classify the following type of reaction: C3H8l) + 5O2g) $\rightarrow$  3CO2g) + 4H2Og).

Accepted Answer

A)  redox reaction 
B)  combustion reaction 
C)  acid/base reaction 
A)  redox reaction 
B)  combustion reaction 
C)  acid/base reaction B

Question 3

When balancing a chemical reaction, the following may need to be changed?

Accepted Answer

A)  subscripts 
B)  coefficients 
C)  phases 
A)  subscripts 
B)  coefficients 
C)  phases B

Question 4

When mixing a strong acid and water together, it is recommended that you do which of the following?

Accepted Answer

A)  add water to the strong acid 
B)  add the strong acid to water 
C)  add them in any order 
A)  add water to the strong acid 
B)  add the strong acid to water 
C)  add them in any order

Question 5

A 15.0 g sample of a white, solid substance, is heated in the presence of air. The solid remaining after heating has a mass of 12.6 g. The reaction that took place must have been a/an:

Accepted Answer

A)  decomposition reaction 
B)  displacement reaction 
C)  combination reaction 
A)  decomposition reaction 
B)  displacement reaction 
C)  combination reaction

Question 6

Which of the following reactions are written correctly?  Paired item 1)

Accepted Answer

A)  H2NO3aq) + 2NaOHaq) $\rightarrow$  Na2NO3aq) + 2H2Ol) 
B)  HNO3aq) + K2OHaq) $\rightarrow$  K2NO3aq) + H2Ol) 
C)  HNO3aq) + NaOHaq) $\rightarrow$ NaNO3aq) + H2Ol) 
A)  H2NO3aq) + 2NaOHaq) $\rightarrow$  Na2NO3aq) + 2H2Ol) 
B)  HNO3aq) + K2OHaq) $\rightarrow$  K2NO3aq) + H2Ol) 
C)  HNO3aq) + NaOHaq) $\rightarrow$ NaNO3aq) + H2Ol)

Question 7

What is the oxidation state of oxygen in H2O2?

Accepted Answer

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

Question 8

Which of the following is a precipitation reaction?

Accepted Answer

A)  Cas) + 2HClaq) $\rightarrow$  CaCl2aq) + H2g) 
B)  H2SO4aq) + 2NaOHaq) $\rightarrow$  Na2SO4aq) + 2H2Ol) 
C)  2NaOHaq) + MgCl2aq) $\rightarrow$  2 NaClaq) + MgOH)2s) 
A)  Cas) + 2HClaq) $\rightarrow$  CaCl2aq) + H2g) 
B)  H2SO4aq) + 2NaOHaq) $\rightarrow$  Na2SO4aq) + 2H2Ol) 
C)  2NaOHaq) + MgCl2aq) $\rightarrow$  2 NaClaq) + MgOH)2s)

Question 9

Fewer steps are required to solve stoichiometry problems when

Accepted Answer

A)  the amount of reactant is given in grams and the product is sought in grams. 
B)  the amount of reactant is given in moles and the product is sought in moles. 
C)  the amount reactant is given in grams and the product is sought in liters. 
A)  the amount of reactant is given in grams and the product is sought in grams. 
B)  the amount of reactant is given in moles and the product is sought in moles. 
C)  the amount reactant is given in grams and the product is sought in liters.

Question 10

The symbol that separates the reactants from products in a reaction and means "to yield" is ________.

Accepted Answer

A)  + 
B)  s) 
C)  ($\rightarrow$ ) 
A)  + 
B)  s) 
C)  ($\rightarrow$ )

Question 11

If 23.6 g of hydrogen gas reacts with 28.3 g of nitrogen gas, what is the maximum amount of product that can be produced?

Accepted Answer

A)  34.4 g 
B)  133 g 
C)  68.8 g 
A)  34.4 g 
B)  133 g 
C)  68.8 g

Question 12

What are the products when reacting potassium hydroxide and hydrogen chloride?

Accepted Answer

A)  potassium chloride and water 
B)  potassium hydroxide and water 
C)  no reaction 
A)  potassium chloride and water 
B)  potassium hydroxide and water 
C)  no reaction

Question 13

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 14

Ammonia reacts with oxygen in the air. Write a balanced chemical reaction.

Accepted Answer

A)  4NH3g) + 5O2g) $\rightarrow$ 4NOg) + 6H2Ol) 
B)  2NH3g) + 5Og) $\rightarrow$  2NOg) + 3H2Ol) 
C)  2NH3g) + 3O2g) $\rightarrow$  2H3NO3aq) 
A)  4NH3g) + 5O2g) $\rightarrow$ 4NOg) + 6H2Ol) 
B)  2NH3g) + 5Og) $\rightarrow$  2NOg) + 3H2Ol) 
C)  2NH3g) + 3O2g) $\rightarrow$  2H3NO3aq)

Question 15

What is the limiting reactant in the combustion of 159 g of methane in an open atmosphere?

Accepted Answer

A)  methane 
B)  oxygen 
C)  carbon dioxide 
A)  methane 
B)  oxygen 
C)  carbon dioxide

Question 16

When CaOH)2 reacts with H2SO4 what are the products?

Accepted Answer

A)  CaOH)2 and H2SO4 
B)  CaSO4 and H2O 
C)  CaO and H2SO4 
A)  CaOH)2 and H2SO4 
B)  CaSO4 and H2O 
C)  CaO and H2SO4

Question 17

Which of the following is a strong acid?

Accepted Answer

A)  HNO3 
B)  CaSO4 
C)  NH3 
A)  HNO3 
B)  CaSO4 
C)  NH3

Question 18

Which of the following is a redox reaction?

Accepted Answer

A)  Zns) + 2 HClaq) $\rightarrow$  ZnCl2aq) + H2g) 
B)  HNO3aq) + KOHaq) $\rightarrow$ KNO3aq) + H2Ol) 
C)  ZnSO4aq) + Hg2NO3)2aq) $\rightarrow$  Hg2SO4s) + ZnNO3)2aq) 
A)  Zns) + 2 HClaq) $\rightarrow$  ZnCl2aq) + H2g) 
B)  HNO3aq) + KOHaq) $\rightarrow$ KNO3aq) + H2Ol) 
C)  ZnSO4aq) + Hg2NO3)2aq) $\rightarrow$  Hg2SO4s) + ZnNO3)2aq)

Question 19

If 250.3 L of hydrogen gas d = 0.0899 g/L) reacts with an excess of nitrogen gas, what mass of ammonia would be produced?

Accepted Answer

A)  253 g 
B)  380 g 
C)  127 g 
A)  253 g 
B)  380 g 
C)  127 g

Question 20

When MgOH)2 reacts with H2SO4 what are the products?

Accepted Answer

A)  MgOH)2 and H2SO4 
B)  MgSO4 and H2O 
C)  MgO and H2SO4 
A)  MgOH)2 and H2SO4 
B)  MgSO4 and H2O 
C)  MgO and H2SO4

Write a balanced reaction for the neutralization of HBr upon the addition of KOH.

Classify the following type of reaction: C₃H₈l) + 5O₂g) $\rightarrow$ 3CO₂g) + 4H₂Og).

When balancing a chemical reaction, the following may need to be changed?

When mixing a strong acid and water together, it is recommended that you do which of the following?

A 15.0 g sample of a white, solid substance, is heated in the presence of air. The solid remaining after heating has a mass of 12.6 g. The reaction that took place must have been a/an:

Which of the following reactions are written correctly? Paired item 1)

What is the oxidation state of oxygen in H₂O₂?

Which of the following is a precipitation reaction?

Fewer steps are required to solve stoichiometry problems when

The symbol that separates the reactants from products in a reaction and means "to yield" is ________.

If 23.6 g of hydrogen gas reacts with 28.3 g of nitrogen gas, what is the maximum amount of product that can be produced?

What are the products when reacting potassium hydroxide and hydrogen chloride?

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

Ammonia reacts with oxygen in the air. Write a balanced chemical reaction.

What is the limiting reactant in the combustion of 159 g of methane in an open atmosphere?

When CaOH)₂ reacts with H₂SO₄ what are the products?

Which of the following is a strong acid?

Which of the following is a redox reaction?

If 250.3 L of hydrogen gas d = 0.0899 g/L) reacts with an excess of nitrogen gas, what mass of ammonia would be produced?

When MgOH)₂ reacts with H₂SO₄ what are the products?

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

Write a balanced reaction for the neutralization of HBr upon the addition of KOH.

Classify the following type of reaction: C3H8l) + 5O2g) →\rightarrow→ 3CO2g) + 4H2Og).

When balancing a chemical reaction, the following may need to be changed?

When mixing a strong acid and water together, it is recommended that you do which of the following?

A 15.0 g sample of a white, solid substance, is heated in the presence of air. The solid remaining after heating has a mass of 12.6 g. The reaction that took place must have been a/an:

Which of the following reactions are written correctly? Paired item 1)

What is the oxidation state of oxygen in H2O2?

Which of the following is a precipitation reaction?

Fewer steps are required to solve stoichiometry problems when

The symbol that separates the reactants from products in a reaction and means "to yield" is ________.

If 23.6 g of hydrogen gas reacts with 28.3 g of nitrogen gas, what is the maximum amount of product that can be produced?

What are the products when reacting potassium hydroxide and hydrogen chloride?

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

Ammonia reacts with oxygen in the air. Write a balanced chemical reaction.

What is the limiting reactant in the combustion of 159 g of methane in an open atmosphere?

When CaOH)2 reacts with H2SO4 what are the products?

Which of the following is a strong acid?

Which of the following is a redox reaction?

If 250.3 L of hydrogen gas d = 0.0899 g/L) reacts with an excess of nitrogen gas, what mass of ammonia would be produced?

When MgOH)2 reacts with H2SO4 what are the products?

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

Classify the following type of reaction: C₃H₈l) + 5O₂g) $\rightarrow$ 3CO₂g) + 4H₂Og).

What is the oxidation state of oxygen in H₂O₂?

When CaOH)₂ reacts with H₂SO₄ what are the products?

When MgOH)₂ reacts with H₂SO₄ what are the products?