Question 1

What are the coefficients for the following reaction when it is properly balanced? ___HCl + ___Mg → ___MgCl2 + ___H2

Accepted Answer

A) 2,1,1,1 
B) 2,1,2,2 
C) 1,2,1/2,1 
D) 1,1,1,2 
E) none of the above 
A) 2,1,1,1 
B) 2,1,2,2 
C) 1,2,1/2,1 
D) 1,1,1,2 
E) none of the above

Question 2

What type of reaction is the generic equation   ?

Accepted Answer

A) synthesis/combination 
B) decomposition 
C) single displacement 
D) double-displacement 
E) none of the above 
A) synthesis/combination 
B) decomposition 
C) single displacement 
D) double-displacement 
E) none of the above

Question 3

Bubbles in water that appear during boiling show that a chemical reaction is occurring.

Accepted Answer

A) True 
 B)False

Question 4

Considering the following precipitation reaction: 
Pb(NO3)2(aq)+ 2KI(aq)→ PbI2(s)+ 2KNO3(aq)
Which ion would NOT be present in the complete ionic equation?

Accepted Answer

A) Pb2+ 
B) K+ 
C) NO3- 
D) I- 
E) All the above ions are in the complete ionic equation. 
A) Pb2+ 
B) K+ 
C) NO3- 
D) I- 
E) All the above ions are in the complete ionic equation.

Question 5

Which of the following compounds is SOLUBLE?

Accepted Answer

A) copper carbonate 
B) calcium carbonate 
C) potassium carbonate 
D) strontium carbonate 
E) none of the above 
A) copper carbonate 
B) calcium carbonate 
C) potassium carbonate 
D) strontium carbonate 
E) none of the above

Question 6

Combustion reactions are a subcategory of oxidation-reduction reactions.

Accepted Answer

A) True 
 B)False

Question 7

A strong electrolyte solution contains ionic compounds that completely dissociate in water.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following statements about redox reactions is FALSE?

Accepted Answer

A) Oxidation is the loss of electrons. 
B) Reduction is the gain of electrons. 
C) A reaction can result in either oxidation or reduction,not both. 
D) A reaction involving elemental oxygen is a redox reaction. 
E) All of the above statement are true. 
A) Oxidation is the loss of electrons. 
B) Reduction is the gain of electrons. 
C) A reaction can result in either oxidation or reduction,not both. 
D) A reaction involving elemental oxygen is a redox reaction. 
E) All of the above statement are true.

Question 9

What is the net ionic equation for the reaction of hydrochloric acid with potassium hydroxide?

Accepted Answer

A) H+ + Cl- + K+ + OH- → H2O + K+ + Cl- 
B) HCl + KOH → H2O + KCl 
C) H+ + OH- → H2O 
D) 2H+ +2Cl- + K2+ + 2OH- → H2O + K2+ +2 Cl- 
E) none of the above 
A) H+ + Cl- + K+ + OH- → H2O + K+ + Cl- 
B) HCl + KOH → H2O + KCl 
C) H+ + OH- → H2O 
D) 2H+ +2Cl- + K2+ + 2OH- → H2O + K2+ +2 Cl- 
E) none of the above

Question 10

Which of the following compounds is INSOLUBLE?

Accepted Answer

A) potassium acetate 
B) lithium carbonate 
C) magnesium bromide 
D) aluminum sulfide 
E) none of the above 
A) potassium acetate 
B) lithium carbonate 
C) magnesium bromide 
D) aluminum sulfide 
E) none of the above

Question 11

The following equation IS balanced: HNO3 + NaHSO3 → NaNO3 + H2O + SO2

Accepted Answer

A) True 
 B)False

Question 12

A precipitate will form when you mix solutions of potassium chloride and lead nitrate.

Accepted Answer

A) True 
 B)False

Question 13

The reaction of carbonate ion with magnesium ion to form solid magnesium carbonate is an example of an oxidation reduction reaction.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is NOT an acid?

Accepted Answer

A) HClO4 
B) HNO3 
C) HC2H3O2 
D) H2SO4 
E) none of the above 
A) HClO4 
B) HNO3 
C) HC2H3O2 
D) H2SO4 
E) none of the above

Question 15

Color change is evidence that a chemical reaction has occurred.

Accepted Answer

A) True 
 B)False

Question 16

The key to predicting a precipitation reaction is the formation of an insoluble compound from soluble compounds.

Accepted Answer

A) True 
 B)False

Question 17

When the equation,___N2 + ___H2 → ___NH3 is balanced,the coefficient of hydrogen is:

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) none of the above 
A) 1 
B) 2 
C) 3 
D) 4 
E) none of the above

Question 18

An insoluble compound will completely dissolve in water.

Accepted Answer

A) True 
 B)False

Question 19

An oxidation-reduction reaction must involve reaction with oxygen.

Accepted Answer

A) True 
 B)False

Question 20

Evidence of a redox reaction is when one substance transfers protons to another substance.

Accepted Answer

A) True 
 B)False

What are the coefficients for the following reaction when it is properly balanced? _HCl + _Mg → _MgCl₂ + _H₂

What type of reaction is the generic equation ?

Bubbles in water that appear during boiling show that a chemical reaction is occurring.

Considering the following precipitation reaction: Pb(NO₃)₂(aq)+ 2KI(aq)→ PbI₂(s)+ 2KNO₃(aq) Which ion would NOT be present in the complete ionic equation?

Which of the following compounds is SOLUBLE?

Combustion reactions are a subcategory of oxidation-reduction reactions.

A strong electrolyte solution contains ionic compounds that completely dissociate in water.

Which of the following statements about redox reactions is FALSE?

What is the net ionic equation for the reaction of hydrochloric acid with potassium hydroxide?

Which of the following compounds is INSOLUBLE?

The following equation IS balanced: HNO₃ + NaHSO₃ → NaNO₃+ H₂O+ SO₂

A precipitate will form when you mix solutions of potassium chloride and lead nitrate.

The reaction of carbonate ion with magnesium ion to form solid magnesium carbonate is an example of an oxidation reduction reaction.

Which of the following is NOT an acid?

Color change is evidence that a chemical reaction has occurred.

The key to predicting a precipitation reaction is the formation of an insoluble compound from soluble compounds.

When the equation,_N₂+ _H₂ → ___NH₃ is balanced,the coefficient of hydrogen is:

An insoluble compound will completely dissolve in water.

An oxidation-reduction reaction must involve reaction with oxygen.

Evidence of a redox reaction is when one substance transfers protons to another substance.

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 7: Chemical Reactions

What are the coefficients for the following reaction when it is properly balanced? ___HCl + ___Mg → ___MgCl2 + ___H2

What type of reaction is the generic equation ?

Bubbles in water that appear during boiling show that a chemical reaction is occurring.

Considering the following precipitation reaction: Pb(NO3)2(aq)+ 2KI(aq)→ PbI2(s)+ 2KNO3(aq) Which ion would NOT be present in the complete ionic equation?

Which of the following compounds is SOLUBLE?

Combustion reactions are a subcategory of oxidation-reduction reactions.

A strong electrolyte solution contains ionic compounds that completely dissociate in water.

Which of the following statements about redox reactions is FALSE?

What is the net ionic equation for the reaction of hydrochloric acid with potassium hydroxide?

Which of the following compounds is INSOLUBLE?

The following equation IS balanced: HNO3 + NaHSO3 → NaNO3 + H2O + SO2

A precipitate will form when you mix solutions of potassium chloride and lead nitrate.

The reaction of carbonate ion with magnesium ion to form solid magnesium carbonate is an example of an oxidation reduction reaction.

Which of the following is NOT an acid?

Color change is evidence that a chemical reaction has occurred.

The key to predicting a precipitation reaction is the formation of an insoluble compound from soluble compounds.

When the equation,___N2 + ___H2 → ___NH3 is balanced,the coefficient of hydrogen is:

An insoluble compound will completely dissolve in water.

An oxidation-reduction reaction must involve reaction with oxygen.

Evidence of a redox reaction is when one substance transfers protons to another substance.

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

What are the coefficients for the following reaction when it is properly balanced? _HCl + _Mg → _MgCl₂ + _H₂

Considering the following precipitation reaction: Pb(NO₃)₂(aq)+ 2KI(aq)→ PbI₂(s)+ 2KNO₃(aq) Which ion would NOT be present in the complete ionic equation?

The following equation IS balanced: HNO₃ + NaHSO₃ → NaNO₃+ H₂O+ SO₂

When the equation,_N₂+ _H₂ → ___NH₃ is balanced,the coefficient of hydrogen is: