Question 1

If ethene (H2C=CH2) were to react with water in an acid solution (H+ present), the result would be which of the following?

Accepted Answer

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

Question 2

Hydrolysis, hydration and dehydration reactions can take place in our cells with the aid of ____, which are proteins that catalyze reactions.

Accepted Answer

The answer of Hydrolysis, hydration and dehydration reactions can take...

Question 3

The reaction below is an example of a ___ reaction.

Accepted Answer

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

Question 4

Two methanol molecules can react in the presence of sulfuric acid to produce dimethyl ether. Calculate the percent yield for this reaction that was run in a laboratory starting with 50 grams methanol and producing 26 grams dimethyl ether.

Accepted Answer

A)  52% 
B)  57% 
C)  72% 
D)  200% 
A)  52% 
B)  57% 
C)  72% 
D)  200%

Question 5

Aluminum carbonate was once the active ingredient in Rolaids . It reacts with stomach acid according to the following equation:

Accepted Answer

The answer of Aluminum carbonate was once the active ingredient...

Question 6

Ethene, C2H4, burns in air according to the equation below. What is the theoretical yield (in grams) of CO2 when 3.24 g of C2H4 are reacted with 4.83 g of O2?

Accepted Answer

A)  3.24 g 
B)  9.72 g 
C)  0.151 g 
D)  4.43 g 
A)  3.24 g 
B)  9.72 g 
C)  0.151 g 
D)  4.43 g

Question 7

If 2.00 grams of potassium are allowed to react with 2.00 grams of bromine by the following equation, which reactant is the limiting reactant?

Accepted Answer

A)  K 
B)  Br2 
C)  cannot be determined 
A)  K 
B)  Br2 
C)  cannot be determined

Question 8

Balance the equation. Tums tablets are composed of the substance calcium carbonate. Two tablets have a combined mass of 5.0 grams. Calcium carbonate reacts with and neutralizes excess stomach acid (hydrochloric acid). The products of this reaction are: water, calcium chloride, and carbon dioxide.

Accepted Answer

The answer of Balance the equation. Tums tablets are composed...

Question 9

The reaction below can be classified as a double replacement reaction.

Accepted Answer

A) True 
 B)False

Question 10

What will you observe if you mix a solution of KOH with a solution of MgI2 in the reaction below?

Accepted Answer

A)  bubbles of KI will form 
B)  a solid of Mg(OH)2 will settle in reaction vessel 
C)  a solid of KOH will form 
D)  a clear solution will form 
A)  bubbles of KI will form 
B)  a solid of Mg(OH)2 will settle in reaction vessel 
C)  a solid of KOH will form 
D)  a clear solution will form

Question 11

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

Accepted Answer

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

Question 12

In the reaction below:

Accepted Answer

A)  CH3CH=CH2 is oxidized 
B)  CH3CH=CH2 is reduced 
C)  CH3CH2CH3 is reduced 
D)  CH3CH=CH2 is neither oxidized nor reduced 
A)  CH3CH=CH2 is oxidized 
B)  CH3CH=CH2 is reduced 
C)  CH3CH2CH3 is reduced 
D)  CH3CH=CH2 is neither oxidized nor reduced

Question 13

Pentose, C5H10O5, reacts with oxygen to produce carbon dioxide and water. What is the coefficient on O2 when the equation below is properly balanced?

Accepted Answer

A)  3 
B)  5 
C)  7 
D)  15 
A)  3 
B)  5 
C)  7 
D)  15

Question 14

A chemist runs a reaction to prepare bromobenzene, C6H5Br, from the reaction of benzene (C6H6) with bromine(Br2):
  The theoretical yield of the reaction is 87 g of bromobenzene. If 68 g of bromobenzene are obtained, what is the percent yield of the reaction?

Accepted Answer

A)  93% 
B)  81% 
C)  78 % 
D)  45% 
A)  93% 
B)  81% 
C)  78 % 
D)  45%

Question 15

In the reaction below, _____.

Accepted Answer

A)  Zn and S are both oxidized 
B)  Zn and S are both reduced 
C)  Zn is reduced and S is oxidized 
D)  Zn is oxidized and S is reduced 
A)  Zn and S are both oxidized 
B)  Zn and S are both reduced 
C)  Zn is reduced and S is oxidized 
D)  Zn is oxidized and S is reduced

Question 16

___ is the energy released or gained in a reaction.

Accepted Answer

The answer of ___ is the energy released or gained...

Question 17

In a synthesis reaction, one compound breaks down to form elements or simpler compounds

Accepted Answer

A) True 
 B)False

Question 18

Write the chemical equation for the reaction that takes place when trans-2-butene is mixed with H2 and Pt.

Accepted Answer

Question 19

The missing reactant is

Accepted Answer

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

Question 20

Baking soda (NaHCO3) can be used as an antacid. It reacts with and neutralizes stomach acid (HCl). The equation for this reaction is as follows:
   Calculate the mass (in grams) of hydrochloric acid that would be neutralized by 5.0 g of NaHCO3.

Accepted Answer

If ethene (H₂C=CH₂) were to react with water in an acid solution (H⁺ present), the result would be which of the following?

Hydrolysis, hydration and dehydration reactions can take place in our cells with the aid of ____, which are proteins that catalyze reactions.

The reaction below is an example of a ___ reaction.

Two methanol molecules can react in the presence of sulfuric acid to produce dimethyl ether. Calculate the percent yield for this reaction that was run in a laboratory starting with 50 grams methanol and producing 26 grams dimethyl ether.

Aluminum carbonate was once the active ingredient in Rolaids . It reacts with stomach acid according to the following equation:

Ethene, C₂H₄, burns in air according to the equation below. What is the theoretical yield (in grams) of CO₂ when 3.24 g of C₂H₄are reacted with 4.83 g of O₂?

If 2.00 grams of potassium are allowed to react with 2.00 grams of bromine by the following equation, which reactant is the limiting reactant?

Balance the equation. Tums tablets are composed of the substance calcium carbonate. Two tablets have a combined mass of 5.0 grams. Calcium carbonate reacts with and neutralizes excess stomach acid (hydrochloric acid). The products of this reaction are: water, calcium chloride, and carbon dioxide.

The reaction below can be classified as a double replacement reaction.

What will you observe if you mix a solution of KOH with a solution of MgI₂ in the reaction below?

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

In the reaction below:

Pentose, C₅H₁₀O₅, reacts with oxygen to produce carbon dioxide and water. What is the coefficient on O₂ when the equation below is properly balanced?

A chemist runs a reaction to prepare bromobenzene, C₆H₅Br, from the reaction of benzene (C₆H₆) with bromine(Br₂): The theoretical yield of the reaction is 87 g of bromobenzene. If 68 g of bromobenzene are obtained, what is the percent yield of the reaction?

In the reaction below, _____.

___ is the energy released or gained in a reaction.

In a synthesis reaction, one compound breaks down to form elements or simpler compounds

Write the chemical equation for the reaction that takes place when trans-2-butene is mixed with H₂and Pt.

The missing reactant is

Baking soda (NaHCO₃) can be used as an antacid. It reacts with and neutralizes stomach acid (HCl). The equation for this reaction is as follows: Calculate the mass (in grams) of hydrochloric acid that would be neutralized by 5.0 g of NaHCO₃.

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

Exam 5: Reactions

If ethene (H2C=CH2) were to react with water in an acid solution (H+ present), the result would be which of the following?

Hydrolysis, hydration and dehydration reactions can take place in our cells with the aid of ____, which are proteins that catalyze reactions.

The reaction below is an example of a ___ reaction.

Two methanol molecules can react in the presence of sulfuric acid to produce dimethyl ether. Calculate the percent yield for this reaction that was run in a laboratory starting with 50 grams methanol and producing 26 grams dimethyl ether.

Aluminum carbonate was once the active ingredient in Rolaids . It reacts with stomach acid according to the following equation:

Ethene, C2H4, burns in air according to the equation below. What is the theoretical yield (in grams) of CO2 when 3.24 g of C2H4 are reacted with 4.83 g of O2?

If 2.00 grams of potassium are allowed to react with 2.00 grams of bromine by the following equation, which reactant is the limiting reactant?

Balance the equation. Tums tablets are composed of the substance calcium carbonate. Two tablets have a combined mass of 5.0 grams. Calcium carbonate reacts with and neutralizes excess stomach acid (hydrochloric acid). The products of this reaction are: water, calcium chloride, and carbon dioxide.

The reaction below can be classified as a double replacement reaction.

What will you observe if you mix a solution of KOH with a solution of MgI2 in the reaction below?

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

In the reaction below:

Pentose, C5H10O5, reacts with oxygen to produce carbon dioxide and water. What is the coefficient on O2 when the equation below is properly balanced?

A chemist runs a reaction to prepare bromobenzene, C6H5Br, from the reaction of benzene (C6H6) with bromine(Br2): The theoretical yield of the reaction is 87 g of bromobenzene. If 68 g of bromobenzene are obtained, what is the percent yield of the reaction?

In the reaction below, _____.

___ is the energy released or gained in a reaction.

In a synthesis reaction, one compound breaks down to form elements or simpler compounds

Write the chemical equation for the reaction that takes place when trans-2-butene is mixed with H2 and Pt.

The missing reactant is

Baking soda (NaHCO3) can be used as an antacid. It reacts with and neutralizes stomach acid (HCl). The equation for this reaction is as follows: Calculate the mass (in grams) of hydrochloric acid that would be neutralized by 5.0 g of NaHCO3.

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

If ethene (H₂C=CH₂) were to react with water in an acid solution (H⁺ present), the result would be which of the following?

Ethene, C₂H₄, burns in air according to the equation below. What is the theoretical yield (in grams) of CO₂ when 3.24 g of C₂H₄are reacted with 4.83 g of O₂?

What will you observe if you mix a solution of KOH with a solution of MgI₂ in the reaction below?

Pentose, C₅H₁₀O₅, reacts with oxygen to produce carbon dioxide and water. What is the coefficient on O₂ when the equation below is properly balanced?

A chemist runs a reaction to prepare bromobenzene, C₆H₅Br, from the reaction of benzene (C₆H₆) with bromine(Br₂): The theoretical yield of the reaction is 87 g of bromobenzene. If 68 g of bromobenzene are obtained, what is the percent yield of the reaction?

Write the chemical equation for the reaction that takes place when trans-2-butene is mixed with H₂and Pt.

Baking soda (NaHCO₃) can be used as an antacid. It reacts with and neutralizes stomach acid (HCl). The equation for this reaction is as follows: Calculate the mass (in grams) of hydrochloric acid that would be neutralized by 5.0 g of NaHCO₃.