Question 1

Which of the following balanced reactions does not have at least one 6 as a coefficient?

Accepted Answer

A)  H₂SO₄ + Al(OH)3 → AL₂(SO₄)3 + H₂O 
B)  H₃PO₄ + Ba(OH)2 → Ba3(PO₄)2 + H₂O 
C)  C₆H₁₂O6 + O₂ → CO₂ + H₂O 
D)  C₂H₂ + O₂ → CO₂ + H₂O 
A)  H₂SO₄ + Al(OH)3 → AL₂(SO₄)3 + H₂O 
B)  H₃PO₄ + Ba(OH)2 → Ba3(PO₄)2 + H₂O 
C)  C₆H₁₂O6 + O₂ → CO₂ + H₂O 
D)  C₂H₂ + O₂ → CO₂ + H₂O D

Question 2

The coefficients in the balanced equation are 1: 6: 2: 3.
Au2S3 + H₂ → Au + H₂S

Accepted Answer

A) True 
 B)False  False

Question 3

The net ionic equation for the following reaction is ________. AgNO₃ + NaCl → AgCl + NaNO₃

Accepted Answer

A)  Ag+ (aq) + NO₃- (aq) → AgNO₃ 
B)  Ag+ (aq) + Cl- (aq) → AgCl (s) 
C)  Na+ (aq) + NO₃- (aq) → NaNO₃ 
D)  NaCl + AgNO₃ → AgCl (s) 
A)  Ag+ (aq) + NO₃- (aq) → AgNO₃ 
B)  Ag+ (aq) + Cl- (aq) → AgCl (s) 
C)  Na+ (aq) + NO₃- (aq) → NaNO₃ 
D)  NaCl + AgNO₃ → AgCl (s) B

Question 4

It takes ________ mole(s)of calcium hydroxide to neutralize ________ moles of sulfuric acid.

Accepted Answer

A)  1; 1 
B)  1; 2 
C)  2; 1 
D)  1; 3 
A)  1; 1 
B)  1; 2 
C)  2; 1 
D)  1; 3

Question 5

Match the acid-base pairs.
-the conjugate acid of H₂O

Accepted Answer

A) HNO₃ 
B) HCl 
C) SO₄2- 
D) OH- 
E) H₂SO₄
F)NO₂
G)H₃O+ 
A) HNO₃ 
B) HCl 
C) SO₄2- 
D) OH- 
E) H₂SO₄
F)NO₂
G)H₃O+

Question 6

Match the acid-base pairs.
-the conjugate acid of Cl-

Accepted Answer

A) HNO₃ 
B) HCl 
C) SO₄2- 
D) OH- 
E) H₂SO₄
F)NO₂
G)H₃O+ 
A) HNO₃ 
B) HCl 
C) SO₄2- 
D) OH- 
E) H₂SO₄
F)NO₂
G)H₃O+

Question 7

In a combustion reaction, oxygen is typically one of the reactants.

Accepted Answer

A) True 
 B)False

Question 8

Which ions are not spectator ions in the following precipitation equation? Pb(NO₃)2+ 2KI → PbI₂ + 2KNO₃

Accepted Answer

A)  Pb2+ and I- 
B)  K+ and NO₃- 
C)  K+ and I- 
D)  Pb2+ and NO₃- 
A)  Pb2+ and I- 
B)  K+ and NO₃- 
C)  K+ and I- 
D)  Pb2+ and NO₃-

Question 9

Which of the following reactions is a double replacement reaction?

Accepted Answer

A)  HCl + NaOH → NaCl + H₂O 
B)  Mg + HCl → H₂ + MgCL₂ 
C)  CaC12 + H₂O → CaCL₂ ∙ 2H₂O 
D)  KClO₃ → KCl + O₂ 
A)  HCl + NaOH → NaCl + H₂O 
B)  Mg + HCl → H₂ + MgCL₂ 
C)  CaC12 + H₂O → CaCL₂ ∙ 2H₂O 
D)  KClO₃ → KCl + O₂

Question 10

Match every equation with its type.
-Mg + HCl $\rightarrow$ H2 + MgCL2

Accepted Answer

A) Combination 
B) Double replacement 
C) Decomposition 
D) Combustion 
A) Combination 
B) Double replacement 
C) Decomposition 
D) Combustion

Question 11

Match each of the equations with the correct relative coefficient ratio when the equation is balanced .
-CaCL? +AgNO? ?

Accepted Answer

A) 2: 3: 2: 4 
B) 1: 1: 1: 1 
C) 1: 3: 2: 2 
D) 1: 2: 2: 1 
E) 1: 2: 1: 1
F)1: 3: 3: 4 
A) 2: 3: 2: 4 
B) 1: 1: 1: 1 
C) 1: 3: 2: 2 
D) 1: 2: 2: 1 
E) 1: 2: 1: 1
F)1: 3: 3: 4

Question 12

It takes two moles of sulfuric acid to neutralize one mole of sodium hydroxide.

Accepted Answer

A) True 
 B)False

Question 13

Bond breaking releases energy.

Accepted Answer

A) True 
 B)False

Question 14

Which phosphate is soluble in water?

Accepted Answer

A)  ammonium phosphate 
B)  cobalt (II) phosphate 
C)  aluminum phosphate 
D)  barium phosphate 
A)  ammonium phosphate 
B)  cobalt (II) phosphate 
C)  aluminum phosphate 
D)  barium phosphate

Question 15

Which of the following reactions is a decomposition reaction?

Accepted Answer

A)  HCl + NaOH → NaCl + H₂O 
B)  Mg + HCl → H₂ + MgCL₂ 
C)  CaCL₂ + H₂O → CaCL₂ ∙ 2H₂O 
D)  KClO₃ → KCl + O₂ 
A)  HCl + NaOH → NaCl + H₂O 
B)  Mg + HCl → H₂ + MgCL₂ 
C)  CaCL₂ + H₂O → CaCL₂ ∙ 2H₂O 
D)  KClO₃ → KCl + O₂

Question 16

Which hydroxide is insoluble in water?

Accepted Answer

A)  sodium hydroxide 
B)  barium hydroxide 
C)  aluminum hydroxide 
D)  calcium hydroxide 
A)  sodium hydroxide 
B)  barium hydroxide 
C)  aluminum hydroxide 
D)  calcium hydroxide

Question 17

Which of the following equations is not a precipitation reaction?

Accepted Answer

A)  Na₂SO₄ + CaCL₂ → CaSO₄ + NaCl 
B)  MgCL₂ + AgNO₃ → Mg(NO₃)2 + AgCl 
C)  NaOH + HCl → NaCl + H₂O 
D)  NaCl+ AgC₂H₃O₂ → AgCl + NaC₂H₃O₂ 
A)  Na₂SO₄ + CaCL₂ → CaSO₄ + NaCl 
B)  MgCL₂ + AgNO₃ → Mg(NO₃)2 + AgCl 
C)  NaOH + HCl → NaCl + H₂O 
D)  NaCl+ AgC₂H₃O₂ → AgCl + NaC₂H₃O₂

Question 18

An alternative name for lye is potassium hydroxide.

Accepted Answer

A) True 
 B)False

Question 19

What is the sum of all coefficients after the following equation is balanced? C₈H₁₈ + O₂ → CO₂ + H₂O

Accepted Answer

A)  4 
B)  18 
C)  32 
D)  61 
A)  4 
B)  18 
C)  32 
D)  61

Question 20

Predict whether each of the compounds is water soluble or insoluble.
-potassium bromide

Accepted Answer

A) water insoluble 
B) water soluble 
A) water insoluble 
B) water soluble

Which of the following balanced reactions does not have at least one 6 as a coefficient?

The coefficients in the balanced equation are 1: 6: 2: 3. Au₂S₃ + H₂ → Au + H₂S

The net ionic equation for the following reaction is ________. AgNO₃ + NaCl → AgCl + NaNO₃

It takes mole(s)of calcium hydroxide to neutralize moles of sulfuric acid.

Match the acid-base pairs. -the conjugate acid of H₂O

Match the acid-base pairs. -the conjugate acid of Cl-

In a combustion reaction, oxygen is typically one of the reactants.

Which ions are not spectator ions in the following precipitation equation? Pb(NO₃)2+ 2KI → PbI₂ + 2KNO₃

Which of the following reactions is a double replacement reaction?

Match every equation with its type. -Mg + HCl $\rightarrow$ H₂ + MgCL₂

Match each of the equations with the correct relative coefficient ratio when the equation is balanced . -CaCL? +AgNO? ?

It takes two moles of sulfuric acid to neutralize one mole of sodium hydroxide.

Bond breaking releases energy.

Which phosphate is soluble in water?

Which of the following reactions is a decomposition reaction?

Which hydroxide is insoluble in water?

Which of the following equations is not a precipitation reaction?

An alternative name for lye is potassium hydroxide.

What is the sum of all coefficients after the following equation is balanced? C₈H₁₈ + O₂ → CO₂ + H₂O

Predict whether each of the compounds is water soluble or insoluble. -potassium bromide

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces - the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 8: Chemical Reactions

Which of the following balanced reactions does not have at least one 6 as a coefficient?

The coefficients in the balanced equation are 1: 6: 2: 3. Au2S3 + H₂ → Au + H₂S

The net ionic equation for the following reaction is ________. AgNO₃ + NaCl → AgCl + NaNO₃

It takes ________ mole(s)of calcium hydroxide to neutralize ________ moles of sulfuric acid.

Match the acid-base pairs. -the conjugate acid of H₂O

Match the acid-base pairs. -the conjugate acid of Cl-

In a combustion reaction, oxygen is typically one of the reactants.

Which ions are not spectator ions in the following precipitation equation? Pb(NO₃)2+ 2KI → PbI₂ + 2KNO₃

Which of the following reactions is a double replacement reaction?

Match every equation with its type. -Mg + HCl →\rightarrow→ H2 + MgCL2

Match each of the equations with the correct relative coefficient ratio when the equation is balanced . -CaCL? +AgNO? ?

It takes two moles of sulfuric acid to neutralize one mole of sodium hydroxide.

Bond breaking releases energy.

Which phosphate is soluble in water?

Which of the following reactions is a decomposition reaction?

Which hydroxide is insoluble in water?

Which of the following equations is not a precipitation reaction?

An alternative name for lye is potassium hydroxide.

What is the sum of all coefficients after the following equation is balanced? C₈H₁₈ + O₂ → CO₂ + H₂O

Predict whether each of the compounds is water soluble or insoluble. -potassium bromide

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces - the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

The coefficients in the balanced equation are 1: 6: 2: 3. Au₂S₃ + H₂ → Au + H₂S

It takes mole(s)of calcium hydroxide to neutralize moles of sulfuric acid.

Match every equation with its type. -Mg + HCl $\rightarrow$ H₂ + MgCL₂