Question 1

In the reaction below, which element is oxidized?

Accepted Answer

A)  Mg 
B)  Br2 
C)  neither Mg nor Br2 is oxidized 
A)  Mg 
B)  Br2 
C)  neither Mg nor Br2 is oxidized

Question 2

The catalyst utilized by biological systems for hydrogenation reactions is ___.

Accepted Answer

A)  platinum 
B)  hydrogen 
C)  an enzyme 
D)  a carbon-carbon bond 
A)  platinum 
B)  hydrogen 
C)  an enzyme 
D)  a carbon-carbon bond

Question 3

How many grams of oxygen (O2) are needed to completely react with 24.0 g of propane (C3H8) according to the equation below?

Accepted Answer

A)  0.545 g 
B)  2.73 g 
C)  87.2 g 
D)  28.8 g 
A)  0.545 g 
B)  2.73 g 
C)  87.2 g 
D)  28.8 g

Question 4

Balance the equation and list the coefficients in the balanced equation below, going from reactants to products.

Accepted Answer

A)  2,1,1,1 
B)  2,2,1,1 
C)  1,1,2,1 
D)  1,2,1,2 
A)  2,1,1,1 
B)  2,2,1,1 
C)  1,1,2,1 
D)  1,2,1,2

Question 5

In the following reaction, 10.0 moles of potassium would require how many moles of bromine?

Accepted Answer

A)  2.00 
B)  5.00 
C)  10.0 
D)  20.0 
A)  2.00 
B)  5.00 
C)  10.0 
D)  20.0

Question 6

The measured amount of product obtained in any reaction is known as the ___.

Accepted Answer

The answer of The measured amount of product obtained in...

Question 7

Which set of coefficients properly balance the equation below, going from reactants to products?

Accepted Answer

A)  1,3,2,3 
B)  1,7,4,3 
C)  2,7,4,6 
D)  2,3,2,3 
A)  1,3,2,3 
B)  1,7,4,3 
C)  2,7,4,6 
D)  2,3,2,3

Question 8

In the following reaction, the aldehyde has been

Accepted Answer

A)  Reduced 
B)  Oxidized 
C)  Hydrolysed 
D)  None of these choices. 
A)  Reduced 
B)  Oxidized 
C)  Hydrolysed 
D)  None of these choices.

Question 9

Write and balance the equation for the complete combustion of decane (C10H22)

Accepted Answer

Question 10

For the following organic reactions, identify the reaction as an oxidation or reduction:
a) 
   
b) 
   
c)

Accepted Answer

a) oxidati

Question 11

Consider the burning of methane gas (CH4):
  Which statement is true about the reaction?

Accepted Answer

A)  energy is absorbed and it is non-spontaneous 
B)  energy is released and it is non-spontaneous 
C)  energy is absorbed and it is spontaneous 
D)  energy is released and it is spontaneous 
A)  energy is absorbed and it is non-spontaneous 
B)  energy is released and it is non-spontaneous 
C)  energy is absorbed and it is spontaneous 
D)  energy is released and it is spontaneous

Question 12

Figures A and B below represent reaction energy diagrams. Diagram that represents an endothermic reaction is

Accepted Answer

A)  B 
B)  A 
C)  Both A and B 
D)  None of these choices 
A)  B 
B)  A 
C)  Both A and B 
D)  None of these choices

Question 13

Classify the reaction below as involving synthesis, decomposition, single replacement, or double replacement.

Accepted Answer

A)  synthesis 
B)  single replacement 
C)  double replacement 
D)  decomposition 
A)  synthesis 
B)  single replacement 
C)  double replacement 
D)  decomposition

Question 14

Classify the reaction below as involving synthesis, decomposition, single replacement, or double replacement.

Accepted Answer

A)  single replacement 
B)  double replacement 
C)  decomposition 
D)  synthesis 
A)  single replacement 
B)  double replacement 
C)  decomposition 
D)  synthesis

Question 15

Regarding the following reaction,

Accepted Answer

A)  This reaction does not involve oxidation or reduction. 
B)  Magnesium is oxidized and nitrogen is reduced. 
C)  Both magnesium and nitrogen are reduced. 
D)  Magnesium is reduced and nitrogen is oxidized. 
A)  This reaction does not involve oxidation or reduction. 
B)  Magnesium is oxidized and nitrogen is reduced. 
C)  Both magnesium and nitrogen are reduced. 
D)  Magnesium is reduced and nitrogen is oxidized.

Question 16

The reaction below is an example of a ___ reaction.

Accepted Answer

A)  hydrogenation 
B)  hydrolysis 
C)  dehydration 
D)  neutralization 
A)  hydrogenation 
B)  hydrolysis 
C)  dehydration 
D)  neutralization

Question 17

Which reaction is NOT an oxidation-reduction reaction?

Accepted Answer

A)    
B)    
C)    
D)  All of these are oxidation-reduction reactions. 
A)    
B)    
C)    
D)  All of these are oxidation-reduction reactions.

Question 18

Isooctane, C8H18, a component of gasoline is a liquid at room temperature. How many moles of oxygen are required to completely react with 4 moles of isooctane?

Accepted Answer

A)  50 
B)  12 
C)  100 
D)  25 
A)  50 
B)  12 
C)  100 
D)  25

Question 19

The percent yield of a reaction is determined by dividing ___ in grams or moles by the ___ in grams or moles times 100%

Accepted Answer

A)  theoretical yield, actual yield 
B)  actual yield, theoretical yield 
C)  amount of reactant, amount of products 
D)  amount of products, amount of reactants 
A)  theoretical yield, actual yield 
B)  actual yield, theoretical yield 
C)  amount of reactant, amount of products 
D)  amount of products, amount of reactants

Question 20

Which set of coefficients properly balance the equation below?

Accepted Answer

A)  1,1,5,6 
B)  1,5,5,6 
C)  1,5,5,1 
D)  1,8,5,6 
A)  1,1,5,6 
B)  1,5,5,6 
C)  1,5,5,1 
D)  1,8,5,6

In the reaction below, which element is oxidized?

The catalyst utilized by biological systems for hydrogenation reactions is ___.

How many grams of oxygen (O₂) are needed to completely react with 24.0 g of propane (C₃H₈) according to the equation below?

Balance the equation and list the coefficients in the balanced equation below, going from reactants to products.

In the following reaction, 10.0 moles of potassium would require how many moles of bromine?

The measured amount of product obtained in any reaction is known as the ___.

Which set of coefficients properly balance the equation below, going from reactants to products?

In the following reaction, the aldehyde has been

Write and balance the equation for the complete combustion of decane (C₁₀H₂₂)

For the following organic reactions, identify the reaction as an oxidation or reduction: a) b) c)

Consider the burning of methane gas (CH₄): Which statement is true about the reaction?

Figures A and B below represent reaction energy diagrams. Diagram that represents an endothermic reaction is

Classify the reaction below as involving synthesis, decomposition, single replacement, or double replacement.

Classify the reaction below as involving synthesis, decomposition, single replacement, or double replacement.

Regarding the following reaction,

The reaction below is an example of a ___ reaction.

Which reaction is NOT an oxidation-reduction reaction?

Isooctane, C₈H₁₈, a component of gasoline is a liquid at room temperature. How many moles of oxygen are required to completely react with 4 moles of isooctane?

The percent yield of a reaction is determined by dividing _ in grams or moles by the _ in grams or moles times 100%

Which set of coefficients properly balance the equation below?

Science and Measurements

Atoms and Elements

Compounds

An Introduction to Organic Compounds

Gases, Solutions, Colloids, and Suspensions

Acids, Bases, and Equilibrium

Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

Organic Reactions 2-Alcohols, Ethers, Aldehydes, and Ketones

Carbohydrates

Lipids and Membranes

Peptides, Proteins, and Enzymes

Nucleic Acids

Metabolism

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Exam 5: Reactions

In the reaction below, which element is oxidized?

The catalyst utilized by biological systems for hydrogenation reactions is ___.

How many grams of oxygen (O2) are needed to completely react with 24.0 g of propane (C3H8) according to the equation below?

Balance the equation and list the coefficients in the balanced equation below, going from reactants to products.

In the following reaction, 10.0 moles of potassium would require how many moles of bromine?

The measured amount of product obtained in any reaction is known as the ___.

Which set of coefficients properly balance the equation below, going from reactants to products?

In the following reaction, the aldehyde has been

Write and balance the equation for the complete combustion of decane (C10H22)

For the following organic reactions, identify the reaction as an oxidation or reduction: a) b) c)

Consider the burning of methane gas (CH4): Which statement is true about the reaction?

Figures A and B below represent reaction energy diagrams. Diagram that represents an endothermic reaction is

Classify the reaction below as involving synthesis, decomposition, single replacement, or double replacement.

Classify the reaction below as involving synthesis, decomposition, single replacement, or double replacement.

Regarding the following reaction,

The reaction below is an example of a ___ reaction.

Which reaction is NOT an oxidation-reduction reaction?

Isooctane, C8H18, a component of gasoline is a liquid at room temperature. How many moles of oxygen are required to completely react with 4 moles of isooctane?

The percent yield of a reaction is determined by dividing ___ in grams or moles by the ___ in grams or moles times 100%

Which set of coefficients properly balance the equation below?

Science and Measurements

Atoms and Elements

Compounds

An Introduction to Organic Compounds

Gases, Solutions, Colloids, and Suspensions

Acids, Bases, and Equilibrium

Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

Organic Reactions 2-Alcohols, Ethers, Aldehydes, and Ketones

Carbohydrates

Lipids and Membranes

Peptides, Proteins, and Enzymes

Nucleic Acids

Metabolism

Filters

How many grams of oxygen (O₂) are needed to completely react with 24.0 g of propane (C₃H₈) according to the equation below?

Write and balance the equation for the complete combustion of decane (C₁₀H₂₂)

Consider the burning of methane gas (CH₄): Which statement is true about the reaction?

Isooctane, C₈H₁₈, a component of gasoline is a liquid at room temperature. How many moles of oxygen are required to completely react with 4 moles of isooctane?

The percent yield of a reaction is determined by dividing _ in grams or moles by the _ in grams or moles times 100%