Question 1

What type of reaction is the following?
2KClO3 → 2KCl + 3O2

Accepted Answer

Question 2

For the following question(s),consider the following equation.
2Mg +   → 2MgO
-How many grams of MgO are produced when 40.0 grams of   react completely with Mg?

Accepted Answer

A) 40.3 g 
B) 50.4 g 
C) 60.5 g 
D) 101 g 
E) 202 g 
A) 40.3 g 
B) 50.4 g 
C) 60.5 g 
D) 101 g 
E) 202 g

Question 3

For the following question(s),consider the following balanced equation. 
    + 6   O → 3   + 2  
-How many grams of   are produced when 125 g of   reacts as shown in the following balanced equation? 
4   + 6NO → 5   + 6   O

Accepted Answer

A) 206 g 
B) 257 g 
C) 165 g 
D) 7.35 g 
E) 145 g 
A) 206 g 
B) 257 g 
C) 165 g 
D) 7.35 g 
E) 145 g

Question 4

What type of reaction is the following?
Zn + 2HCl → Zn   +

Accepted Answer

The answer of What type of reaction is the following?
Zn...

Question 5

The following reaction is endothermic.
2     + 5   → 4C   +   O + 310 kcal

Accepted Answer

A) True 
 B)False

Question 6

What is the molar mass of copper(II)sulfate,CuSO4 ?

Accepted Answer

A) 16.00 g/mole 
B) 63.60 g/mole 
C) 111.6 g/mole 
D) 159.6 g/mole 
E) 319.2 g/mole 
A) 16.00 g/mole 
B) 63.60 g/mole 
C) 111.6 g/mole 
D) 159.6 g/mole 
E) 319.2 g/mole

Question 7

In the following reaction C is reduced.
2C +   → 2CO

Accepted Answer

A) True 
 B)False

Question 8

The ________ is the minimum energy needed for a chemical reaction to begin.

Accepted Answer

A) reaction energy 
B) activation energy 
C) energy of reactants 
D) energy of products 
E) heat of reaction 
A) reaction energy 
B) activation energy 
C) energy of reactants 
D) energy of products 
E) heat of reaction

Question 9

The following reaction is correctly balanced.
KCl   → KCl +

Accepted Answer

A) True 
 B)False

Question 10

The following is a decomposition reaction.
2KClO3 → 2KCl + 3O2

Accepted Answer

A) True 
 B)False

Question 11

For the following question(s),consider the following balanced equation. 
    + 6   O → 3   + 2  
-When 2 moles of     are allowed to react,how many moles of   O also react?

Accepted Answer

A) 1 mole 
B) 4 moles 
C) 6 moles 
D) 8 moles 
E) 12 moles 
A) 1 mole 
B) 4 moles 
C) 6 moles 
D) 8 moles 
E) 12 moles

Question 12

The following reaction takes place when an electric current is passed through water.It is an example of a ________ reaction. 
  O   2   +

Accepted Answer

A) combination 
B) single replacement 
C) combustion 
D) decomposition 
E) double replacement 
A) combination 
B) single replacement 
C) combustion 
D) decomposition 
E) double replacement

Question 13

Acetylene gas,     ,reacts with oxygen according to the following equation.If 1 mole of acetylene react completely with sufficient oxygen,how many moles of carbon dioxide are produced?
2     + 5   → 4C   +   O

Accepted Answer

The answer of Acetylene gas,     ,reacts...

Question 14

Answer the question(s)below about the following reaction.
2     → 2   O +  
-How many moles of oxygen gas can 5.0 moles of hydrogen peroxide (H2O2)produce,if decomposition is complete?

Accepted Answer

A) 5.0 moles 
B) 2.5 moles 
C) 1.0 mole 
D) 2.0 moles 
E) 10.moles 
A) 5.0 moles 
B) 2.5 moles 
C) 1.0 mole 
D) 2.0 moles 
E) 10.moles

Question 15

The ________ is the energy difference between reactants and products in a chemical reaction.

Accepted Answer

A) transition energy 
B) activation energy 
C) product energy 
D) overall energy 
E) heat of reaction 
A) transition energy 
B) activation energy 
C) product energy 
D) overall energy 
E) heat of reaction

Question 16

What is the molar mass of       ,a substance formerly used in medicine as an antacid?

Accepted Answer

A) 71.28 g/mole 
B) 118.3 g/mole 
C) 150.3 g/mole 
D) 214.3 g/mole 
E) 262.9 g/mole 
A) 71.28 g/mole 
B) 118.3 g/mole 
C) 150.3 g/mole 
D) 214.3 g/mole 
E) 262.9 g/mole

Question 17

A reaction that releases energy as it occurs is classified as a(n)________.

Accepted Answer

A) endothermic reaction 
B) exothermic reaction 
C) oxidation-reduction reaction 
D) catalyzed reaction 
E) decomposition reaction 
A) endothermic reaction 
B) exothermic reaction 
C) oxidation-reduction reaction 
D) catalyzed reaction 
E) decomposition reaction

Question 18

In the reaction of hydrogen gas with oxygen gas to produce water,1 mole of oxygen gas can produce 2 moles of water,given sufficient hydrogen available.

Accepted Answer

A) True 
 B)False

Question 19

Avogadro's number is the number of grams in a mole.

Accepted Answer

A) True 
 B)False

Question 20

The molar mass of copper(II)nitrate,Cu(N     is ________.

Accepted Answer

The answer of The molar mass of copper(II)nitrate,Cu(N  ...

What type of reaction is the following? 2KClO₃ → 2KCl + 3O₂

For the following question(s),consider the following equation. 2Mg + → 2MgO -How many grams of MgO are produced when 40.0 grams of react completely with Mg?

For the following question(s),consider the following balanced equation. + 6 O → 3 + 2 -How many grams of are produced when 125 g of reacts as shown in the following balanced equation? 4 + 6NO → 5 + 6 O

What type of reaction is the following? Zn + 2HCl → Zn +

The following reaction is endothermic. 2 + 5 → 4C + O + 310 kcal

What is the molar mass of copper(II)sulfate,CuSO₄ ?

In the following reaction C is reduced. 2C + → 2CO

The ________ is the minimum energy needed for a chemical reaction to begin.

The following reaction is correctly balanced. KCl → KCl +

The following is a decomposition reaction. 2KClO₃ → 2KCl + 3O₂

For the following question(s),consider the following balanced equation. + 6 O → 3 + 2 -When 2 moles of are allowed to react,how many moles of O also react?

The following reaction takes place when an electric current is passed through water.It is an example of a ________ reaction. O 2 +

Acetylene gas, ,reacts with oxygen according to the following equation.If 1 mole of acetylene react completely with sufficient oxygen,how many moles of carbon dioxide are produced? 2 + 5 → 4C + O

Answer the question(s)below about the following reaction. 2 → 2 O + -How many moles of oxygen gas can 5.0 moles of hydrogen peroxide (H₂O₂)produce,if decomposition is complete?

The ________ is the energy difference between reactants and products in a chemical reaction.

What is the molar mass of ,a substance formerly used in medicine as an antacid?

A reaction that releases energy as it occurs is classified as a(n)________.

In the reaction of hydrogen gas with oxygen gas to produce water,1 mole of oxygen gas can produce 2 moles of water,given sufficient hydrogen available.

Avogadro's number is the number of grams in a mole.

The molar mass of copper(II)nitrate,Cu(N is ________.

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Exam 7: Chemical Quantities and Reactions

What type of reaction is the following? 2KClO3 → 2KCl + 3O2

For the following question(s),consider the following equation. 2Mg + → 2MgO -How many grams of MgO are produced when 40.0 grams of react completely with Mg?

For the following question(s),consider the following balanced equation. + 6 O → 3 + 2 -How many grams of are produced when 125 g of reacts as shown in the following balanced equation? 4 + 6NO → 5 + 6 O

What type of reaction is the following? Zn + 2HCl → Zn +

The following reaction is endothermic. 2 + 5 → 4C + O + 310 kcal

What is the molar mass of copper(II)sulfate,CuSO4 ?

In the following reaction C is reduced. 2C + → 2CO

The ________ is the minimum energy needed for a chemical reaction to begin.

The following reaction is correctly balanced. KCl → KCl +

The following is a decomposition reaction. 2KClO3 → 2KCl + 3O2

For the following question(s),consider the following balanced equation. + 6 O → 3 + 2 -When 2 moles of are allowed to react,how many moles of O also react?

The following reaction takes place when an electric current is passed through water.It is an example of a ________ reaction. O 2 +

Acetylene gas, ,reacts with oxygen according to the following equation.If 1 mole of acetylene react completely with sufficient oxygen,how many moles of carbon dioxide are produced? 2 + 5 → 4C + O

Answer the question(s)below about the following reaction. 2 → 2 O + -How many moles of oxygen gas can 5.0 moles of hydrogen peroxide (H2O2)produce,if decomposition is complete?

The ________ is the energy difference between reactants and products in a chemical reaction.

What is the molar mass of ,a substance formerly used in medicine as an antacid?

A reaction that releases energy as it occurs is classified as a(n)________.

In the reaction of hydrogen gas with oxygen gas to produce water,1 mole of oxygen gas can produce 2 moles of water,given sufficient hydrogen available.

Avogadro's number is the number of grams in a mole.

The molar mass of copper(II)nitrate,Cu(N is ________.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Thiols, Ethers, Aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, Esters, Amines, and Amides

Lipids

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters

What type of reaction is the following? 2KClO₃ → 2KCl + 3O₂

What is the molar mass of copper(II)sulfate,CuSO₄ ?

The following is a decomposition reaction. 2KClO₃ → 2KCl + 3O₂

Answer the question(s)below about the following reaction. 2 → 2 O + -How many moles of oxygen gas can 5.0 moles of hydrogen peroxide (H₂O₂)produce,if decomposition is complete?