Question 1

How many grams of     are there in 0.500 mole of     ?

Accepted Answer

A) 79.9 g 
B) 35.9 g 
C) 63.8 g 
D) 51.9 g 
E) 160.g 
A) 79.9 g 
B) 35.9 g 
C) 63.8 g 
D) 51.9 g 
E) 160.g

Question 2

The molar mass of calcium hydroxide,   ,is ________.

Accepted Answer

A) 58.09 g/mole 
B) 57.09 g/mole 
C) 74.10 g/mole 
D) 114.2 g/mole 
E) 54.02 g/mole 
A) 58.09 g/mole 
B) 57.09 g/mole 
C) 74.10 g/mole 
D) 114.2 g/mole 
E) 54.02 g/mole

Question 3

In the following reaction,when 100.g of Br2 reacts,111 g of AlBr3 is formed.
2Al + 3   → 2

Accepted Answer

A) True 
 B)False

Question 4

The molar mass of       is ________.

Accepted Answer

A) 76.09 g/mole 
B) 60.09 g/mole 
C) 29.02 g/mole 
D) 69.02 g/mole 
E) 52.01 g/mole 
A) 76.09 g/mole 
B) 60.09 g/mole 
C) 29.02 g/mole 
D) 69.02 g/mole 
E) 52.01 g/mole

Question 5

The reaction of carbon with oxygen to produce carbon monoxide is an example of which class of reaction? 
2C + O2 → 2CO

Accepted Answer

A) single replacement 
B) double replacement 
C) combination 
D) catalytic 
E) endothermic 
A) single replacement 
B) double replacement 
C) combination 
D) catalytic 
E) endothermic

Question 6

Barium chloride and sodium sulfate react according to the following equation.
BaClS1U1B12S1U1B0 + NaS1U1B12S1U1B0SOS1U1B14S1U1B0 → BaSOS1U1B14 S1U1B0+ 2NaCl
Answer the following question(s)about this reaction.
-In this reaction,what is the correct coefficient for hydrogen gas? 
? H2 + ? O2 → ? H2O

Accepted Answer

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

Question 7

For the following question(s),consider the following equation.
2Mg +   → 2MgO
-The number of moles of MgO produced when 0.20 mole of   reacts completely is ________.

Accepted Answer

A) 0.10 mole 
B) 0.20 mole 
C) 0.40 mole 
D) 0.60 mole 
E) 0.80 mole 
A) 0.10 mole 
B) 0.20 mole 
C) 0.40 mole 
D) 0.60 mole 
E) 0.80 mole

Question 8

Which of the following is an oxidation-reduction reaction?

Accepted Answer

A) Ca   +     → Ca   + 2NaCl 
B) KOH +   →   O +   
C)    +   → 2NO 
D)    + NaCl → AgCl +   
E)        + 6KOH → 2   + 3     
A) Ca   +     → Ca   + 2NaCl 
B) KOH +   →   O +   
C)    +   → 2NO 
D)    + NaCl → AgCl +   
E)        + 6KOH → 2   + 3

Question 9

If the reaction shown below is exothermic,the energy level of the reactants is ________. 
  +   →   O

Accepted Answer

A) lower than that of the products 
B) higher than that of the products 
C) the same as that of the products 
D) possibly lower,possibly higher than that of the products 
E) higher than the activation energy of the reaction 
A) lower than that of the products 
B) higher than that of the products 
C) the same as that of the products 
D) possibly lower,possibly higher than that of the products 
E) higher than the activation energy of the reaction

Question 10

For the following question(s),consider the following balanced equation. 
    + 6   O → 3   + 2  
-When 4 moles of aluminum are allowed to react with an excess of chlorine gas,   ,how many moles of aluminum chloride are produced? 
2Al + 3   → 2Al

Accepted Answer

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

Question 11

The molar mass of magnesium is 24.31 g/mole.

Accepted Answer

A) True 
 B)False

Question 12

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 moles of barium sulfate are produced from 0.1 mole of barium chloride?

Accepted Answer

A) 0.01 mole 
B) 0.1 mole 
C) 0.2 mole 
D) 1 mole 
E) 2 moles 
A) 0.01 mole 
B) 0.1 mole 
C) 0.2 mole 
D) 1 mole 
E) 2 moles

Question 13

For the following question(s),consider the following equation.
2Mg +   → 2MgO
-In the reaction of silver nitrate with sodium chloride,how many grams of silver chloride will be produced from 100.g of silver nitrate when it is mixed with an excess of sodium chloride? The equation for the reaction is below. 
AgN   + NaCl → AgCl + NaN

Accepted Answer

A) 107.9 g 
B) 169.9 g 
C) 84.4 g 
D) 0.589 g 
E) 58.9 g 
A) 107.9 g 
B) 169.9 g 
C) 84.4 g 
D) 0.589 g 
E) 58.9 g

Question 14

What type of reaction is the following?
2     + 5   → 4C   +   O

Accepted Answer

The answer of What type of reaction is the following?
2...

Question 15

What type of reaction is: 
  + 2   →   + 2   O + 218 kcal?

Accepted Answer

A) an endothermic reaction 
B) an exothermic reaction 
C) a single replacement reaction 
D) a combination reaction 
E) a decomposition reaction 
A) an endothermic reaction 
B) an exothermic reaction 
C) a single replacement reaction 
D) a combination reaction 
E) a decomposition reaction

Question 16

The number of particles in 1 mole of hydrogen gas is ________.

Accepted Answer

The answer of The number of particles in 1 mole...

Question 17

In this reaction,what is the substance oxidized? 
Zn + 2 HCl → ZnCl2 + H2

Accepted Answer

A) chlorine 
B) zinc chloride 
C) hydrogen 
D) zinc 
E) oxygen 
A) chlorine 
B) zinc chloride 
C) hydrogen 
D) zinc 
E) oxygen

Question 18

Is the following reaction exothermic or endothermic?
C2H6 + O2 → CO2 +   O +1300 kJ

Accepted Answer

Question 19

Calculate the molar mass of potassium chloride,KCl.

Accepted Answer

A) 74.55 g/mole 
B) 54.55 g/mole 
C) 6.745 g/mole 
D) 67.45 g/mole 
E) 19.00 g/mole 
A) 74.55 g/mole 
B) 54.55 g/mole 
C) 6.745 g/mole 
D) 67.45 g/mole 
E) 19.00 g/mole

Question 20

Which of the following correctly gives the correct coefficients for the reaction below? 
    +     →   +   O

Accepted Answer

A) 1,1,1,1 
B) 1,2,1,4 
C) 2,4,2,8 
D) 1,4,1,4 
E) 2,4,2,4 
A) 1,1,1,1 
B) 1,2,1,4 
C) 2,4,2,8 
D) 1,4,1,4 
E) 2,4,2,4

How many grams of are there in 0.500 mole of ?

The molar mass of calcium hydroxide, ,is ________.

In the following reaction,when 100.g of Br₂ reacts,111 g of AlBr₃ is formed. 2Al + 3 → 2

The molar mass of is ________.

The reaction of carbon with oxygen to produce carbon monoxide is an example of which class of reaction? 2C + O₂ → 2CO

Barium chloride and sodium sulfate react according to the following equation. BaCl₂ + Na₂SO₄ → BaSO₄+ 2NaCl Answer the following question(s)about this reaction. -In this reaction,what is the correct coefficient for hydrogen gas? ? H₂ + ? O₂ → ? H₂O

For the following question(s),consider the following equation. 2Mg + → 2MgO -The number of moles of MgO produced when 0.20 mole of reacts completely is ________.

Which of the following is an oxidation-reduction reaction?

If the reaction shown below is exothermic,the energy level of the reactants is ________. + → O

For the following question(s),consider the following balanced equation. + 6 O → 3 + 2 -When 4 moles of aluminum are allowed to react with an excess of chlorine gas, ,how many moles of aluminum chloride are produced? 2Al + 3 → 2Al

The molar mass of magnesium is 24.31 g/mole.

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 moles of barium sulfate are produced from 0.1 mole of barium chloride?

What type of reaction is the following? 2 + 5 → 4C + O

What type of reaction is: + 2 → + 2 O + 218 kcal?

The number of particles in 1 mole of hydrogen gas is ________.

In this reaction,what is the substance oxidized? Zn + 2 HCl → ZnCl₂+ H₂

Is the following reaction exothermic or endothermic? C₂H₆ + O₂ → CO₂ + O +1300 kJ

Calculate the molar mass of potassium chloride,KCl.

Which of the following correctly gives the correct coefficients for the reaction below? + → + O

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Exam 7: Chemical Quantities and Reactions

How many grams of are there in 0.500 mole of ?

The molar mass of calcium hydroxide, ,is ________.

In the following reaction,when 100.g of Br2 reacts,111 g of AlBr3 is formed. 2Al + 3 → 2

The molar mass of is ________.

The reaction of carbon with oxygen to produce carbon monoxide is an example of which class of reaction? 2C + O2 → 2CO

Barium chloride and sodium sulfate react according to the following equation. BaCl2 + Na2SO4 → BaSO4 + 2NaCl Answer the following question(s)about this reaction. -In this reaction,what is the correct coefficient for hydrogen gas? ? H2 + ? O2 → ? H2O

For the following question(s),consider the following equation. 2Mg + → 2MgO -The number of moles of MgO produced when 0.20 mole of reacts completely is ________.

Which of the following is an oxidation-reduction reaction?

If the reaction shown below is exothermic,the energy level of the reactants is ________. + → O

For the following question(s),consider the following balanced equation. + 6 O → 3 + 2 -When 4 moles of aluminum are allowed to react with an excess of chlorine gas, ,how many moles of aluminum chloride are produced? 2Al + 3 → 2Al

The molar mass of magnesium is 24.31 g/mole.

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 moles of barium sulfate are produced from 0.1 mole of barium chloride?

What type of reaction is the following? 2 + 5 → 4C + O

What type of reaction is: + 2 → + 2 O + 218 kcal?

The number of particles in 1 mole of hydrogen gas is ________.

In this reaction,what is the substance oxidized? Zn + 2 HCl → ZnCl2 + H2

Is the following reaction exothermic or endothermic? C2H6 + O2 → CO2 + O +1300 kJ

Calculate the molar mass of potassium chloride,KCl.

Which of the following correctly gives the correct coefficients for the reaction below? + → + O

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

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Alcohols, Thiols, Ethers, Aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, Esters, Amines, and Amides

Lipids

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In the following reaction,when 100.g of Br₂ reacts,111 g of AlBr₃ is formed. 2Al + 3 → 2

The reaction of carbon with oxygen to produce carbon monoxide is an example of which class of reaction? 2C + O₂ → 2CO

Barium chloride and sodium sulfate react according to the following equation. BaCl₂ + Na₂SO₄ → BaSO₄+ 2NaCl Answer the following question(s)about this reaction. -In this reaction,what is the correct coefficient for hydrogen gas? ? H₂ + ? O₂ → ? H₂O

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 moles of barium sulfate are produced from 0.1 mole of barium chloride?

In this reaction,what is the substance oxidized? Zn + 2 HCl → ZnCl₂+ H₂

Is the following reaction exothermic or endothermic? C₂H₆ + O₂ → CO₂ + O +1300 kJ