Question 1

0.400 mole of sucrose, C12H22O11,contains ________ C atoms.

Accepted Answer

A) 12 
B) 6.02 ×   
C) 5.02 ×   
D) 2.89 ×   
E) 4.80 
A) 12 
B) 6.02 ×   
C) 5.02 ×   
D) 2.89 ×   
E) 4.80

Question 2

What is oxidized and what is reduced in the following reaction? 
2Al + 3   → 2

Accepted Answer

A) Al is oxidized and   is reduced. 
B) AlBr3 is reduced and   is oxidized. 
C) Al is reduced and   is oxidized. 
D)    is reduced and Al is oxidized. 
E)    is oxidized and Al is reduced. 
A) Al is oxidized and   is reduced. 
B) AlBr3 is reduced and   is oxidized. 
C) Al is reduced and   is oxidized. 
D)    is reduced and Al is oxidized. 
E)    is oxidized and Al is reduced.

Question 3

What is the classification for this reaction? 
S   +   O →   S

Accepted Answer

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

Question 4

For the following question(s),consider the following balanced equation. 
    + 6   O → 3   + 2  
-How many grams of NO are required to produce 145 g of   in the following reaction? 
4   + 6NO → 5   + 6   O

Accepted Answer

A) 186 g 
B) 155 g 
C) 125 g 
D) 129 g 
E) 145 g 
A) 186 g 
B) 155 g 
C) 125 g 
D) 129 g 
E) 145 g

Question 5

In this reaction,what is the coefficient for calcium oxide? 
CaO + CO2 → CaCO3

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 6

The molar mass of chlorine gas is 35.45 g/mole.

Accepted Answer

A) True 
 B)False

Question 7

Avogadro's number is the number of ________.

Accepted Answer

A) particles in 1 mole of a substance 
B) amu in 1 mole of a substance 
C) grams in 1 mole of a substance 
D) moles in 6.02 ×   g of an element 
E) moles in 6.02 ×   amu of an element 
A) particles in 1 mole of a substance 
B) amu in 1 mole of a substance 
C) grams in 1 mole of a substance 
D) moles in 6.02 ×   g of an element 
E) moles in 6.02 ×   amu of an element

Question 8

Pentane (     )reacts with oxygen (   )to form carbon dioxide (   )and water (   O)according to the following reaction.Answer the following question(s)about this reaction.     + ?   → ?   + ?   O
-What is the coefficient for carbon dioxide in the balanced equation?

Accepted Answer

A) 2 
B) 4 
C) 5 
D) 6 
E) 8 
A) 2 
B) 4 
C) 5 
D) 6 
E) 8

Question 9

How many moles of water, H2O,are present in 75.0 g H2O?

Accepted Answer

A) 4.41 moles 
B) 4.16 moles 
C) 75.0 moles 
D) 7.50 moles 
E) 1.35 ×   moles 
A) 4.41 moles 
B) 4.16 moles 
C) 75.0 moles 
D) 7.50 moles 
E) 1.35 ×   moles

Question 10

In the following reaction,what is the correct coefficient for aluminum chloride? 
Al +   → Al

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 11

What is the classification for this unbalanced reaction? 
Fe + HCl → FeC   + H2

Accepted Answer

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

Question 12

The mass of one mole of water is 18.02 g.

Accepted Answer

A) True 
 B)False

Question 13

When 25.0 g of KCl   reacts,how many grams of O2 are produced?
2KCl   → 2KCl + 3

Accepted Answer

Question 14

What is the molar mass of sodium phosphate,     ?

Accepted Answer

A) 69.96 g/mole 
B) 118.0 g/mole 
C) 163.9 g/mole 
D) 226.1 g/mole 
E) 354.0 g/mole 
A) 69.96 g/mole 
B) 118.0 g/mole 
C) 163.9 g/mole 
D) 226.1 g/mole 
E) 354.0 g/mole

Question 15

For the following question(s),consider the following equation.
2Mg +   → 2MgO
-How many grams of magnesium are needed to react with 16 g of   ?

Accepted Answer

A) 0.50 g 
B) 1.0 g 
C) 12 g 
D) 24 g 
E) 48 g 
A) 0.50 g 
B) 1.0 g 
C) 12 g 
D) 24 g 
E) 48 g

Question 16

How many grams of glucose (       )are in 3.55 moles of glucose?

Accepted Answer

A) 180.g 
B) 640.g 
C) 103 g 
D) 426 g 
E) 50.7 g 
A) 180.g 
B) 640.g 
C) 103 g 
D) 426 g 
E) 50.7 g

Question 17

Pentane (     )reacts with oxygen (   )to form carbon dioxide (   )and water (   O)according to the following reaction.Answer the following question(s)about this reaction.     + ?   → ?   + ?   O
-What is the coefficient for oxygen in the balanced equation?

Accepted Answer

A) 2 
B) 4 
C) 5 
D) 6 
E) 8 
A) 2 
B) 4 
C) 5 
D) 6 
E) 8

Question 18

Barium chloride and sodium sulfate react according to the following equation.
BaClS1U1B12S1U1B0 + NaS1U1B12S1U1B0SOS1U1B14S1U1B0 → BaSOS1U1B14 S1U1B0+ 2NaCl
Answer the following question(s)about this reaction.
-How many grams of barium chloride are needed to make 100.grams of barium sulfate?

Accepted Answer

A) 44.9 g 
B) 89.2 g 
C) 208 g 
D) 233 g 
E) 46.6 g 
A) 44.9 g 
B) 89.2 g 
C) 208 g 
D) 233 g 
E) 46.6 g

Question 19

Barium chloride and sodium sulfate react according to the following equation.
BaClS1U1B12S1U1B0 + NaS1U1B12S1U1B0SOS1U1B14S1U1B0 → BaSOS1U1B14 S1U1B0+ 2NaCl
Answer the following question(s)about this reaction.
-How many grams of sodium chloride can be produced from 50.grams of barium chloride?

Accepted Answer

A) 2.0 g 
B) 14 g 
C) 28 g 
D) 59 g 
E) 208 g 
A) 2.0 g 
B) 14 g 
C) 28 g 
D) 59 g 
E) 208 g

Question 20

0.100 mole of lithium has a mass of ________.

Accepted Answer

A) 3.00 g 
B) 0.300 g 
C) 6.94 g 
D) 0.694 g 
E) 0.700 g 
A) 3.00 g 
B) 0.300 g 
C) 6.94 g 
D) 0.694 g 
E) 0.700 g

0.400 mole of sucrose, C₁₂H₂₂O₁₁,contains ________ C atoms.

What is oxidized and what is reduced in the following reaction? 2Al + 3 → 2

What is the classification for this reaction? S + O → S

For the following question(s),consider the following balanced equation. + 6 O → 3 + 2 -How many grams of NO are required to produce 145 g of in the following reaction? 4 + 6NO → 5 + 6 O

In this reaction,what is the coefficient for calcium oxide? CaO + CO₂ → CaCO₃

The molar mass of chlorine gas is 35.45 g/mole.

Avogadro's number is the number of ________.

Pentane ( )reacts with oxygen ( )to form carbon dioxide ( )and water ( O)according to the following reaction.Answer the following question(s)about this reaction. + ? → ? + ? O -What is the coefficient for carbon dioxide in the balanced equation?

How many moles of water, H₂O,are present in 75.0 g H₂O?

In the following reaction,what is the correct coefficient for aluminum chloride? Al + → Al

What is the classification for this unbalanced reaction? Fe + HCl → FeC + H₂

The mass of one mole of water is 18.02 g.

When 25.0 g of KCl reacts,how many grams of O₂are produced? 2KCl → 2KCl + 3

What is the molar mass of sodium phosphate, ?

For the following question(s),consider the following equation. 2Mg + → 2MgO -How many grams of magnesium are needed to react with 16 g of ?

How many grams of glucose ( )are in 3.55 moles of glucose?

Pentane ( )reacts with oxygen ( )to form carbon dioxide ( )and water ( O)according to the following reaction.Answer the following question(s)about this reaction. + ? → ? + ? O -What is the coefficient for oxygen in the balanced equation?

Barium chloride and sodium sulfate react according to the following equation. BaCl₂ + Na₂SO₄ → BaSO₄+ 2NaCl Answer the following question(s)about this reaction. -How many grams of barium chloride are needed to make 100.grams of barium sulfate?

Barium chloride and sodium sulfate react according to the following equation. BaCl₂ + Na₂SO₄ → BaSO₄+ 2NaCl Answer the following question(s)about this reaction. -How many grams of sodium chloride can be produced from 50.grams of barium chloride?

0.100 mole of lithium has a mass of ________.

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Exam 7: Chemical Quantities and Reactions

0.400 mole of sucrose, C12H22O11,contains ________ C atoms.

What is oxidized and what is reduced in the following reaction? 2Al + 3 → 2

What is the classification for this reaction? S + O → S

For the following question(s),consider the following balanced equation. + 6 O → 3 + 2 -How many grams of NO are required to produce 145 g of in the following reaction? 4 + 6NO → 5 + 6 O

In this reaction,what is the coefficient for calcium oxide? CaO + CO2 → CaCO3

The molar mass of chlorine gas is 35.45 g/mole.

Avogadro's number is the number of ________.

Pentane ( )reacts with oxygen ( )to form carbon dioxide ( )and water ( O)according to the following reaction.Answer the following question(s)about this reaction. + ? → ? + ? O -What is the coefficient for carbon dioxide in the balanced equation?

How many moles of water, H2O,are present in 75.0 g H2O?

In the following reaction,what is the correct coefficient for aluminum chloride? Al + → Al

What is the classification for this unbalanced reaction? Fe + HCl → FeC + H2

The mass of one mole of water is 18.02 g.

When 25.0 g of KCl reacts,how many grams of O2 are produced? 2KCl → 2KCl + 3

What is the molar mass of sodium phosphate, ?

For the following question(s),consider the following equation. 2Mg + → 2MgO -How many grams of magnesium are needed to react with 16 g of ?

How many grams of glucose ( )are in 3.55 moles of glucose?

Pentane ( )reacts with oxygen ( )to form carbon dioxide ( )and water ( O)according to the following reaction.Answer the following question(s)about this reaction. + ? → ? + ? O -What is the coefficient for oxygen in the balanced equation?

Barium chloride and sodium sulfate react according to the following equation. BaCl2 + Na2SO4 → BaSO4 + 2NaCl Answer the following question(s)about this reaction. -How many grams of barium chloride are needed to make 100.grams of barium sulfate?

Barium chloride and sodium sulfate react according to the following equation. BaCl2 + Na2SO4 → BaSO4 + 2NaCl Answer the following question(s)about this reaction. -How many grams of sodium chloride can be produced from 50.grams of barium chloride?

0.100 mole of lithium has a mass of ________.

Chemistry in Our Lives

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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

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Filters

0.400 mole of sucrose, C₁₂H₂₂O₁₁,contains ________ C atoms.

In this reaction,what is the coefficient for calcium oxide? CaO + CO₂ → CaCO₃

How many moles of water, H₂O,are present in 75.0 g H₂O?

What is the classification for this unbalanced reaction? Fe + HCl → FeC + H₂

When 25.0 g of KCl reacts,how many grams of O₂are produced? 2KCl → 2KCl + 3

Barium chloride and sodium sulfate react according to the following equation. BaCl₂ + Na₂SO₄ → BaSO₄+ 2NaCl Answer the following question(s)about this reaction. -How many grams of barium chloride are needed to make 100.grams of barium sulfate?

Barium chloride and sodium sulfate react according to the following equation. BaCl₂ + Na₂SO₄ → BaSO₄+ 2NaCl Answer the following question(s)about this reaction. -How many grams of sodium chloride can be produced from 50.grams of barium chloride?