Question 1

Use the following choices to classify each reaction given below (more than one choice may apply).

-Zn(s) + 2HCl(aq) $\rightarrow$H2(g) + ZnCl2(aq)

Accepted Answer

A)  oxidation-reduction 
B)  acid-base 
C)  precipitation 
A)  oxidation-reduction 
B)  acid-base 
C)  precipitation

Question 2

Use the following choices to classify each reaction given below (more than one choice may apply).

-HC2H3O2(aq) + CsOH(aq) $\rightarrow$ H2O(l) + CsC2H3O2(aq)

Accepted Answer

A)  oxidation-reduction 
B)  acid-base 
C)  precipitation 
A)  oxidation-reduction 
B)  acid-base 
C)  precipitation

Question 3

Use the following choices to classify each reaction given below (more than one choice may apply).

-KBr(aq) + AgNO3(aq) $\rightarrow$ AgBr(s) + KNO3(aq)

Accepted Answer

A)  oxidation-reduction 
B)  acid-base 
C)  precipitation 
A)  oxidation-reduction 
B)  acid-base 
C)  precipitation

Question 4

Use the following choices to classify each reaction given below (more than one choice may apply).

-The equation 2Al(s) + 2Br2(l) $\rightarrow$ 2AlBr3(s) is a(n) ______________ reaction.

Accepted Answer

A) oxidation-reduction and synthesis 
B) oxidation-reduction only 
C) synthesis only 
D) decomposition 
E) combustion 
A) oxidation-reduction and synthesis 
B) oxidation-reduction only 
C) synthesis only 
D) decomposition 
E) combustion

Question 5

An aqueous solution of ammonium carbonate is allowed to react with an aqueous solution of nickel(II) chloride. Identify the solid in the balanced equation.

Accepted Answer

A)  NiCO3 
B)  NH4Cl 
C)  NiCl2 
D)  (NH4)2CO3 
E)  There is no solid formed when the two solutions are mixed. 
A)  NiCO3 
B)  NH4Cl 
C)  NiCl2 
D)  (NH4)2CO3 
E)  There is no solid formed when the two solutions are mixed.

Question 6

Use the following choices to classify each reaction given below (more than one choice may apply).

-C(s) + O2(g) $\rightarrow$CO2(g)

Accepted Answer

A)  oxidation-reduction 
B)  acid-base 
C)  precipitation 
A)  oxidation-reduction 
B)  acid-base 
C)  precipitation

Question 7

Use the following choices to classify each reaction given below (more than one choice may apply).

-S8(s) + 12O2(g)$\rightarrow$8SO3(g)

Accepted Answer

A)  oxidation-reduction 
B)  acid-base 
C)  precipitation 
A)  oxidation-reduction 
B)  acid-base 
C)  precipitation

Question 8

How many of the following are oxidation-reduction reactions? 
(I) reaction of a metal with a nonmetal
(II) synthesis
(III) combustion
(IV) precipitation
(V) decomposition

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 9

Write and balance molecular equations for the following reactions between aqueous solutions. You will need to decide on the formulas and phases of the products in each of the cases.
-An aqueous solution of silver nitrate is mixed with an aqueous solution of potassium carbonate.

Accepted Answer

2AgNO₃(aq) + K

Question 10

Oxidation and reduction must occur simultaneously.

Accepted Answer

A) True 
 B)False

Question 11

Write and balance molecular equations for the following reactions between aqueous solutions. You will need to decide on the formulas and phases of the products in each of the cases.
-An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium sulfate.

Accepted Answer

2KCl(aq) + Na<sub>2<

Question 12

When the following equation is balanced in standard form, what is the coefficient in front of the H2O? C2H6(g) + O2(g)   CO2(g) + H2O(g)

Accepted Answer

A)  6 
B)  2 
C)  4 
D)  1 
E)  7 
A)  6 
B)  2 
C)  4 
D)  1 
E)  7

Question 13

An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The molecular equation contains which one of the following terms (when balanced in standard form)?

Accepted Answer

A)  KCl(s) 
B)  KNO3(aq) 
C)  KNa(aq) 
D)  ClNO3(aq) 
E)  NaCl(s) 
A)  KCl(s) 
B)  KNO3(aq) 
C)  KNa(aq) 
D)  ClNO3(aq) 
E)  NaCl(s)

Question 14

An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The complete ionic equation contains which of the following species (when balanced in standard form)?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 15

Use the following choices to classify each reaction given below (more than one choice may apply).

-C3H8(g) + 5O2(g) $\rightarrow$ 3CO2(g) + 4H2O(g)

Accepted Answer

A)  oxidation-reduction 
B)  acid-base 
C)  precipitation 
A)  oxidation-reduction 
B)  acid-base 
C)  precipitation

Question 16

Use the following choices to classify each reaction given below (more than one choice may apply).

-ZnBr2(aq) + 2AgNO3(aq) $\rightarrow$ Zn(NO3)2(aq) + 2AgBr(s)

Accepted Answer

A)  oxidation-reduction 
B)  acid-base 
C)  precipitation 
A)  oxidation-reduction 
B)  acid-base 
C)  precipitation

Question 17

A substance that, when dissolved in water, produces a solution that conducts electric current very efficiently is called

Accepted Answer

A)  a strong electrolyte 
B)  a weak electrolyte 
C)  a strong ion 
D)  an electrical solute 
E)  none of these 
A)  a strong electrolyte 
B)  a weak electrolyte 
C)  a strong ion 
D)  an electrical solute 
E)  none of these

Question 18

An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The net ionic equation contains which of the following species (when balanced in standard form)?

Accepted Answer

A)    
B)    
C)    
D)    
E)  No net ionic equation exists for this reaction. 
A)    
B)    
C)    
D)    
E)  No net ionic equation exists for this reaction.

Question 19

Write and balance molecular equations for the following reactions between aqueous solutions. You will need to decide on the formulas and phases of the products in each of the cases.
-An aqueous solution of barium hydroxide is mixed with an aqueous solution of sulfuric acid.

Accepted Answer

Ba(OH)₂(a

Question 20

Use the following choices to classify each reaction given below (more than one choice may apply).

-H2SO4(aq) + Ba(OH)2(aq) $\rightarrow$2H2O(l) + BaSO4(s)

Accepted Answer

A)  oxidation-reduction 
B)  acid-base 
C)  precipitation 
A)  oxidation-reduction 
B)  acid-base 
C)  precipitation

Exam 7: Reactions in Aqueous Solutions

Use the following choices to classify each reaction given below (more than one choice may apply). -Zn(s) + 2HCl(aq) →\rightarrow→ H2(g) + ZnCl2(aq)

Use the following choices to classify each reaction given below (more than one choice may apply). -HC2H3O2(aq) + CsOH(aq) →\rightarrow→ H2O(l) + CsC2H3O2(aq)

Use the following choices to classify each reaction given below (more than one choice may apply). -KBr(aq) + AgNO3(aq) →\rightarrow→ AgBr(s) + KNO3(aq)

Use the following choices to classify each reaction given below (more than one choice may apply). -The equation 2Al(s) + 2Br2(l) →\rightarrow→ 2AlBr3(s) is a(n) ______________ reaction.

An aqueous solution of ammonium carbonate is allowed to react with an aqueous solution of nickel(II) chloride. Identify the solid in the balanced equation.

Use the following choices to classify each reaction given below (more than one choice may apply). -C(s) + O2(g) →\rightarrow→ CO2(g)

Use the following choices to classify each reaction given below (more than one choice may apply). -S8(s) + 12O2(g) →\rightarrow→ 8SO3(g)

How many of the following are oxidation-reduction reactions? (I) reaction of a metal with a nonmetal (II) synthesis (III) combustion (IV) precipitation (V) decomposition

Write and balance molecular equations for the following reactions between aqueous solutions. You will need to decide on the formulas and phases of the products in each of the cases. -An aqueous solution of silver nitrate is mixed with an aqueous solution of potassium carbonate.

Oxidation and reduction must occur simultaneously.

Write and balance molecular equations for the following reactions between aqueous solutions. You will need to decide on the formulas and phases of the products in each of the cases. -An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium sulfate.

When the following equation is balanced in standard form, what is the coefficient in front of the H2O? C2H6(g) + O2(g) CO2(g) + H2O(g)

An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The molecular equation contains which one of the following terms (when balanced in standard form)?

An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The complete ionic equation contains which of the following species (when balanced in standard form)?

Use the following choices to classify each reaction given below (more than one choice may apply). -C3H8(g) + 5O2(g) →\rightarrow→ 3CO2(g) + 4H2O(g)

Use the following choices to classify each reaction given below (more than one choice may apply). -ZnBr2(aq) + 2AgNO3(aq) →\rightarrow→ Zn(NO3)2(aq) + 2AgBr(s)

A substance that, when dissolved in water, produces a solution that conducts electric current very efficiently is called

An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The net ionic equation contains which of the following species (when balanced in standard form)?

Write and balance molecular equations for the following reactions between aqueous solutions. You will need to decide on the formulas and phases of the products in each of the cases. -An aqueous solution of barium hydroxide is mixed with an aqueous solution of sulfuric acid.

Use the following choices to classify each reaction given below (more than one choice may apply). -H2SO4(aq) + Ba(OH)2(aq) →\rightarrow→ 2H2O(l) + BaSO4(s)

Chemistry: an Introduction

Measurements and Calculations

Matter

Chemical Foundations: Elements, Atoms, and Ions

Nomenclature

Chemical Reactions: an Introduction

Chemical Composition

Chemical Quantities

Energy

Modern Atomic Theory

Chemical Bonding

Gases

Liquids and Solids

Solutions

Acids and Bases

Equilibrium

Oxidation-Reduction Reactions and Electrochemistry

Radioactivity and Nuclear Energy

Organic Chemistry

Biochemistry

Filters

Use the following choices to classify each reaction given below (more than one choice may apply). -Zn(s) + 2HCl(aq) $\rightarrow$ H₂(g) + ZnCl₂(aq)

Use the following choices to classify each reaction given below (more than one choice may apply). -HC₂H₃O₂(aq) + CsOH(aq) $\rightarrow$ H₂O(l) + CsC₂H₃O₂(aq)

Use the following choices to classify each reaction given below (more than one choice may apply). -KBr(aq) + AgNO₃(aq) $\rightarrow$ AgBr(s) + KNO₃(aq)

Use the following choices to classify each reaction given below (more than one choice may apply). -The equation 2Al(s) + 2Br₂(l) $\rightarrow$ 2AlBr₃(s) is a(n) ______________ reaction.

Use the following choices to classify each reaction given below (more than one choice may apply). -C(s) + O₂(g) $\rightarrow$ CO₂(g)

Use the following choices to classify each reaction given below (more than one choice may apply). -S₈(s) + 12O₂(g) $\rightarrow$ 8SO₃(g)

When the following equation is balanced in standard form, what is the coefficient in front of the H₂O? C₂H₆(g) + O₂(g) CO₂(g) + H₂O(g)

Use the following choices to classify each reaction given below (more than one choice may apply). -C₃H₈(g) + 5O₂(g) $\rightarrow$ 3CO₂(g) + 4H₂O(g)

Use the following choices to classify each reaction given below (more than one choice may apply). -ZnBr₂(aq) + 2AgNO₃(aq) $\rightarrow$ Zn(NO₃)₂(aq) + 2AgBr(s)

Use the following choices to classify each reaction given below (more than one choice may apply). -H₂SO₄(aq) + Ba(OH)₂(aq) $\rightarrow$ 2H₂O(l) + BaSO₄(s)