Question 1

What is formed when a metal oxide reacts with water?

Accepted Answer

A)  A base
B)  An acid
C)  A salt
D)  A nonmetal oxideE) B) and C)
F) A) and D)

Question 2

The following reaction: CaCO3  →\rarr→  CaO + CO2,is an example of

Accepted Answer

A)  combination.
B)  decomposition.
C)  single-displacement.
D)  double-displacement. E) A) and B)
F) B) and C)

Question 3

Given the reaction: 2KClO3  →\rarr→  2KCl + 3O2.How many moles of O2 are produced when 4.0 moles of KCl are produced?

Accepted Answer

A)  1.5
B)  3.0
C)  4.5
D)  6.0 E) A) and C)
F) C) and D)

Question 4

Balance the following chemical equation using the smallest set of integers.The coefficient on NO2 is: HNO3 + S 2 is: HNO3 + S   NO2 + H2SO4 + H2O A) 4 B) 6 C) 1 D) 2" class="answers-bank-image d-inline" rel="preload" > NO2 + H2SO4 + H2O

Accepted Answer

A)  4
B)  6
C)  1
D)  2E) None of the above
F) All of the above

Question 5

Complete and balance the equation for each example in which a double-displacement reaction will occur.If no reaction will occur write the words "No Reaction" on the right side of the equation
A.AlBr3 + AgNO3 $\rarr$
B.ZnBr2 + Na2S $\rarr$
C.NH4Br + AlI3 $\rarr$
D.K2CO3 + HCl $\rarr$

Accepted Answer

A.AlBr₃ + 3AgNO₃

A...

Question 6

Complete and balance the equation for each example in which a double-displacement reaction will occur.If no reaction will occur write the words "No Reaction" on the right side of the equation.
A.HF + KOH$\rarr$
B.AgNO3 + KCl$\rarr$
C.KOH + ZnCl2 $\rarr$
D.NH4Cl + Ca(NO3)2 $\rarr$

Accepted Answer

A.HF + KOH

KF + H₂O...

Question 7

When the equation Ag + H2S + O2  →\rarr→ Ag2S + H2O is balanced,the coefficient of water is

Accepted Answer

A)  1
B)  2
C)  3
D)  4 E) A) and C)
F) All of the above

Question 8

A neutralization reaction is a double-displacement reaction.

Accepted Answer

A) True 
 B)False

Question 9

Given the unbalanced equation: C2H2 + O2  →\rarr→ CO2 + H2O. When properly balanced,the sum of the balancing coefficients is

Accepted Answer

A)  10
B)  11
C)  12
D)  13 E) A) and B)
F) A) and C)

Question 10

In all chemical reactions,atoms are neither created nor destroyed.

Accepted Answer

A) True 
 B)False

Question 11

Given the unbalanced equation: AgNO3 + CaCl2  →\rarr→  AgCl + Ca(NO3) 2. When properly balanced,the sum of the balancing coefficients is

Accepted Answer

A)  4
B)  5
C)  6
D)  7 E) All of the above
F) A) and D)

Question 12

Which of the following statements is not true during a chemical reaction?

Accepted Answer

A)  Total mass is conserved
B)  The total number of atoms is conserved
C)  The total number of molecules is conserved
D)  Energy is involvedE) None of the above
F) C) and D)

Question 13

In the expression,2AlCl3,

Accepted Answer

A)  2 and 3 are subscripts
B)  2 and 3 are coefficients
C)  2 is a subscript and 3 is a coefficient
D)  3 is a subscript and 2 is a coefficientE) A) and C)
F) B) and D)

Question 14

Which of the following reactants would you add to an aqueous solution of ammonium sulfate in order to precipitate quantitatively all the sulfate?

Accepted Answer

A)  CaCl2
B)  Al(NO3) 3
C)  Zn(C2H3O2) 2
D)  KBrE) None of the above
F) All of the above

Question 15

The levels of Greenhouse Gases in our atmosphere have increased significantly in the pastcentury.

Accepted Answer

A) True 
 B)False

Question 16

The following reaction: LiOH + HCl  →\rarr→  LiCl + H2O,is an example of

Accepted Answer

A)  combination.
B)  decomposition.
C)  single-displacement.
D)  double-displacement. E) B) and C)
F) A) and D)

Question 17

When the equation H2O2  →\rarr→  H2O + O2 is balanced,a term in the balanced equation is

Accepted Answer

A)  H2O2
B)  H2O
C)  2H2O
D)  2O2 E) B) and D)
F) B) and C)

Question 18

The following reaction: 2H2 + O2  →\rarr→ 2H2O,is an example of

Accepted Answer

A)  combination.
B)  decomposition.
C)  single-displacement.
D)  double-displacement. E) A) and D)
F) A) and C)

Question 19

The following reaction: 2Al + 3O2  →\rarr→ Al2O3,is an example of

Accepted Answer

A)  combination.
B)  decomposition.
C)  single-displacement.
D)  double-displacement. E) All of the above
F) A) and C)

Question 20

The reaction: 2C + 3H2  →\rarr→ C2H6 + 84.0 kJ,is

Accepted Answer

A)  endothermic.
B)  exothermic.
C)  isothermic.
D)  protothermic. E) C) and D)
F) B) and C)

Exam 8: Chemical Equations

When the equation H2O2 →\rarr→ H2O + O2 is balanced,a term in the balanced equation is

Correct AnswerverifiedShow Answer

Given the reaction: 2KClO3 →\rarr→ 2KCl + 3O2.How many moles of O2 are produced when 4.0 moles of KCl are produced?

Correct AnswerverifiedShow Answer

When the equation Ag + H2S + O2 →\rarr→ Ag2S + H2O is balanced,the coefficient of water is

Correct AnswerverifiedShow Answer

Which of the following reactants would you add to an aqueous solution of ammonium sulfate in order to precipitate quantitatively all the sulfate?

Correct AnswerverifiedShow Answer

Which of the following statements is not true during a chemical reaction?

Correct AnswerverifiedShow Answer

The levels of Greenhouse Gases in our atmosphere have increased significantly in the pastcentury.

Correct AnswerverifiedShow Answer

The following reaction: 2H2 + O2 →\rarr→ 2H2O,is an example of

Correct AnswerverifiedShow Answer

Complete and balance the equation for each example in which a double-displacement reaction will occur.If no reaction will occur write the words "No Reaction" on the right side of the equation A.AlBr3 + AgNO3 →\rarr→ B.ZnBr2 + Na2S →\rarr→ C.NH4Br + AlI3 →\rarr→ D.K2CO3 + HCl →\rarr→

Correct AnswerverifiedA.AlBr3 + 3AgNO3 A...View AnswerShow Answer

The following reaction: 2Al + 3O2 →\rarr→ Al2O3,is an example of

Correct AnswerverifiedShow Answer

Complete and balance the equation for each example in which a double-displacement reaction will occur.If no reaction will occur write the words "No Reaction" on the right side of the equation. A.HF + KOH →\rarr→ B.AgNO3 + KCl →\rarr→ C.KOH + ZnCl2 →\rarr→ D.NH4Cl + Ca(NO3)2 →\rarr→

Correct AnswerverifiedA.HF + KOH KF + H2O...View AnswerShow Answer

Balance the following chemical equation using the smallest set of integers.The coefficient on NO2 is: HNO3 + S NO2 + H2SO4 + H2O

Correct AnswerverifiedShow Answer

In all chemical reactions,atoms are neither created nor destroyed.

Correct AnswerverifiedShow Answer

In the expression,2AlCl3,

Correct AnswerverifiedShow Answer

The following reaction: LiOH + HCl →\rarr→ LiCl + H2O,is an example of

Correct AnswerverifiedShow Answer

A neutralization reaction is a double-displacement reaction.

Correct AnswerverifiedShow Answer

What is formed when a metal oxide reacts with water?

Correct AnswerverifiedShow Answer

Given the unbalanced equation: AgNO3 + CaCl2 →\rarr→ AgCl + Ca(NO3) 2. When properly balanced,the sum of the balancing coefficients is

Correct AnswerverifiedShow Answer

The following reaction: CaCO3 →\rarr→ CaO + CO2,is an example of

Correct AnswerverifiedShow Answer

The reaction: 2C + 3H2 →\rarr→ C2H6 + 84.0 kJ,is

Correct AnswerverifiedShow Answer

Given the unbalanced equation: C2H2 + O2 →\rarr→ CO2 + H2O. When properly balanced,the sum of the balancing coefficients is

Correct AnswerverifiedShow Answer

When the equation H₂O₂ $\rarr$ H₂O + O₂ is balanced,a term in the balanced equation is

Correct Answer
verified

Given the reaction: 2KClO₃ $\rarr$ 2KCl + 3O₂.How many moles of O₂ are produced when 4.0 moles of KCl are produced?

Correct Answer
verified

When the equation Ag + H₂S + O₂ $\rarr$ Ag₂S + H₂O is balanced,the coefficient of water is

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The following reaction: 2H₂ + O₂ $\rarr$ 2H₂O,is an example of

Correct Answer
verified

Complete and balance the equation for each example in which a double-displacement reaction will occur.If no reaction will occur write the words "No Reaction" on the right side of the equation A.AlBr₃ + AgNO₃ $\rarr$ B.ZnBr₂ + Na₂S $\rarr$ C.NH₄Br + AlI₃ $\rarr$ D.K₂CO₃ + HCl $\rarr$

Correct Answer
verified
A.AlBr₃ + 3AgNO₃ A...
View Answer

The following reaction: 2Al + 3O₂ $\rarr$ Al₂O₃,is an example of

Correct Answer
verified

Complete and balance the equation for each example in which a double-displacement reaction will occur.If no reaction will occur write the words "No Reaction" on the right side of the equation. A.HF + KOH $\rarr$ B.AgNO₃ + KCl $\rarr$ C.KOH + ZnCl₂ $\rarr$ D.NH₄Cl + Ca(NO₃)₂ $\rarr$

Correct Answer
verified
A.HF + KOH KF + H₂O...
View Answer

Balance the following chemical equation using the smallest set of integers.The coefficient on NO₂ is: HNO₃ + S NO₂ + H₂SO₄ + H₂O

Correct Answer
verified

Correct Answer
verified

In the expression,2AlCl₃,

Correct Answer
verified

The following reaction: LiOH + HCl $\rarr$ LiCl + H₂O,is an example of

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Given the unbalanced equation: AgNO₃ + CaCl₂ $\rarr$ AgCl + Ca(NO₃) ₂. When properly balanced,the sum of the balancing coefficients is

Correct Answer
verified

The following reaction: CaCO₃ $\rarr$ CaO + CO₂,is an example of

Correct Answer
verified

The reaction: 2C + 3H₂ $\rarr$ C₂H₆ + 84.0 kJ,is

Correct Answer
verified

Given the unbalanced equation: C₂H₂ + O₂ $\rarr$ CO₂ + H₂O. When properly balanced,the sum of the balancing coefficients is

Correct Answer
verified