Question 1

What basic type of reaction is illustrated by the general equation AB + CD → AD + BC?

Accepted Answer

A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement 
A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement

Question 2

By definition,the addition of oxygen to a substance is called

Accepted Answer

A)  neutralization. 
B)  reduction. 
C)  oxidation. 
D)  displacement. 
A)  neutralization. 
B)  reduction. 
C)  oxidation. 
D)  displacement.

Question 3

Avogadro's number has a numerical value of

Accepted Answer

A)  6.02 × 1023. 
B)  1.00 × 1023. 
C)  3.01 × 1023. 
D)  none of these. 
A)  6.02 × 1023. 
B)  1.00 × 1023. 
C)  3.01 × 1023. 
D)  none of these.

Question 4

Which type of reaction is 2Fe2O3+ 3C→ 4Fe+ 3CO2?

Accepted Answer

A)  Decomposition 
B)  Combination 
C)  Double-replacement 
D)  Single-replacement 
A)  Decomposition 
B)  Combination 
C)  Double-replacement 
D)  Single-replacement

Question 5

What basic type of reaction is illustrated by the general equation AB → A + B?

Accepted Answer

A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement 
A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement

Question 6

An ionic compound formed from a cation other than H+ and an anion other than OH- is called a(n)______________.

Accepted Answer

Question 7

State which element is oxidized and which is reduced in the reaction Fe + Cl2→ FeCl2.

Accepted Answer

Fe is oxid

Question 8

When an acid reacts with a carbonate or hydrogen carbonate,the products are ______________,carbon dioxide,and a salt.

Accepted Answer

The answer of When an acid reacts with a carbonate...

Question 9

Which of the following is a chemical change?

Accepted Answer

A)  Dry ice subliming 
B)  Limestone being crushed to powder 
C)  Paper being shredded 
D)  Sulfur burning 
A)  Dry ice subliming 
B)  Limestone being crushed to powder 
C)  Paper being shredded 
D)  Sulfur burning

Question 10

A balanced chemical equation will have the same ______________ on each side.

Accepted Answer

A)  number of moles 
B)  number of molecules 
C)  mass of each compound 
D)  number of atoms of each element 
A)  number of moles 
B)  number of molecules 
C)  mass of each compound 
D)  number of atoms of each element

Question 11

A reaction will occur when a piece of Mg is placed in aqueous Zn(NO3)2 if Mg is ______________ Zn in the activity series.

Accepted Answer

above,or h

Question 12

Which one of the following is a physical change?

Accepted Answer

A)  Rusting of iron 
B)  Fermenting of grape juice 
C)  Souring of milk 
D)  Sharpening a pencil 
A)  Rusting of iron 
B)  Fermenting of grape juice 
C)  Souring of milk 
D)  Sharpening a pencil

Question 13

When an acid reacts with a base,the products are ______________ and a salt.

Accepted Answer

The answer of When an acid reacts with a base,the...

Question 14

Which of the following is not a property of an aqueous solution of an acid?

Accepted Answer

A)  Reacts with many metals to liberate hydrogen gas 
B)  Changes the color of litmus dye from red to blue 
C)  Tastes sour 
D)  Conducts an electric current 
A)  Reacts with many metals to liberate hydrogen gas 
B)  Changes the color of litmus dye from red to blue 
C)  Tastes sour 
D)  Conducts an electric current

Question 15

Which type of reaction is 4Al + 3O2→ 2Al2O3?

Accepted Answer

A)  Decomposition 
B)  Combination 
C)  Double-replacement 
D)  Single-replacement 
A)  Decomposition 
B)  Combination 
C)  Double-replacement 
D)  Single-replacement

Question 16

When a hydrocarbon or carbon-hydrogen-oxygen compound is burned completely,the products are

Accepted Answer

A)  CO2 and H2O. 
B)  CH2 and O2. 
C)  CO and H2. 
D)  C and H2. 
A)  CO2 and H2O. 
B)  CH2 and O2. 
C)  CO and H2. 
D)  C and H2.

Question 17

Which type of reaction is AlCl3 + 3KOH → Al(OH)3 + 3KCl?

Accepted Answer

A)  Single-replacement 
B)  Double-replacement 
C)  Decomposition 
D)  Combination 
A)  Single-replacement 
B)  Double-replacement 
C)  Decomposition 
D)  Combination

Question 18

Complete and balance the equation: Zn + AgNO3(aq)? ____________________

Accepted Answer

Zn + 2AgNO

Question 19

When there is a net release of energy in a chemical reaction,it is called a(n)______________ reaction.

Accepted Answer

A)  exothermic 
B)  activation 
C)  endothermic 
D)  combustion 
A)  exothermic 
B)  activation 
C)  endothermic 
D)  combustion

Question 20

What is the molarity of a solution that contains 2 mol of solute in 4 L of solution?

Accepted Answer

The answer of What is the molarity of a solution...

Exam 13: Chemical Reactions

What basic type of reaction is illustrated by the general equation AB + CD → AD + BC?

By definition,the addition of oxygen to a substance is called

Avogadro's number has a numerical value of

Which type of reaction is 2Fe2O3+ 3C→ 4Fe+ 3CO2?

What basic type of reaction is illustrated by the general equation AB → A + B?

An ionic compound formed from a cation other than H+ and an anion other than OH- is called a(n)______________.

State which element is oxidized and which is reduced in the reaction Fe + Cl2→ FeCl2.

When an acid reacts with a carbonate or hydrogen carbonate,the products are ______________,carbon dioxide,and a salt.

Which of the following is a chemical change?

A balanced chemical equation will have the same ______________ on each side.

A reaction will occur when a piece of Mg is placed in aqueous Zn(NO3)2 if Mg is ______________ Zn in the activity series.

Which one of the following is a physical change?

When an acid reacts with a base,the products are ______________ and a salt.

Which of the following is not a property of an aqueous solution of an acid?

Which type of reaction is 4Al + 3O2→ 2Al2O3?

When a hydrocarbon or carbon-hydrogen-oxygen compound is burned completely,the products are

Which type of reaction is AlCl3 + 3KOH → Al(OH)3 + 3KCl?

Complete and balance the equation: Zn + AgNO3(aq)? ____________________

When there is a net release of energy in a chemical reaction,it is called a(n)______________ reaction.

What is the molarity of a solution that contains 2 mol of solute in 4 L of solution?

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Which type of reaction is 2Fe₂O₃+ 3C→ 4Fe+ 3CO₂?

An ionic compound formed from a cation other than H⁺ and an anion other than OH^- is called a(n)______________.

State which element is oxidized and which is reduced in the reaction Fe + Cl₂→ FeCl_2.

A reaction will occur when a piece of Mg is placed in aqueous Zn(NO₃)₂ if Mg is ______________ Zn in the activity series.

Which type of reaction is 4Al + 3O₂→ 2Al₂O₃?

Which type of reaction is AlCl₃ + 3KOH → Al(OH)₃ + 3KCl?

Complete and balance the equation: Zn + AgNO₃(aq)? ____________________