Question 1

What is the value of 783 K in units of °C?

Accepted Answer

A) 417 
B) 1441 
C) 510. 
D) 1056 
E) none of the above 
A) 417 
B) 1441 
C) 510. 
D) 1056 
E) none of the above C

Question 2

When methane is burned with oxygen,the products are carbon dioxide and water.If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen,how many grams of carbon dioxide were produced in the reaction?

Accepted Answer

A) 40 
B) 22 
C) 58 
D) 18 
E) none of the above 
A) 40 
B) 22 
C) 58 
D) 18 
E) none of the above B

Question 3

Given the table of specific heat values below,what is the identity of a 10.0 g metal sample that increases by   when   of energy is absorbed?

Accepted Answer

A) Fe 
B) Al 
C) Au 
D) Ag 
E) none of the above 
A) Fe 
B) Al 
C) Au 
D) Ag 
E) none of the above A

Question 4

Which state of matter has atomic spacing that is close together and indefinite shape?

Accepted Answer

A) liquid 
B) solid 
C) gas 
D) plasma 
E) none of the above 
A) liquid 
B) solid 
C) gas 
D) plasma 
E) none of the above

Question 5

In a chemical reaction,the substances present after the chemical change are called reactants.

Accepted Answer

A) True 
 B)False

Question 6

An energy diagram that shows the reactants having greater energy than the products illustrates an:

Accepted Answer

A) endothermic reaction. 
B) exothermic reaction. 
C) isothermic reaction. 
D) impossible reaction. 
E) none of the above 
A) endothermic reaction. 
B) exothermic reaction. 
C) isothermic reaction. 
D) impossible reaction. 
E) none of the above

Question 7

What is the final temperature of 25.0 grams of water at 22.0°C after it absorbs   of heat?

Accepted Answer

A) 17.7 
B) 4.29 
C) 26.3 
D) 15.8 
E) none of the above 
A) 17.7 
B) 4.29 
C) 26.3 
D) 15.8 
E) none of the above

Question 8

What type of energy is associated with the burning of gasoline?

Accepted Answer

A) kinetic 
B) potential 
C) electrical 
D) chemical 
E) none of the above 
A) kinetic 
B) potential 
C) electrical 
D) chemical 
E) none of the above

Question 9

Which type of energy is associated with motion?

Accepted Answer

A) chemical 
B) electrical 
C) potential 
D) kinetic 
E) none of the above 
A) chemical 
B) electrical 
C) potential 
D) kinetic 
E) none of the above

Question 10

When you dissolve solid sugar into water,this new solution will taste sweet.The sugar went through a chemical change.

Accepted Answer

A) True 
 B)False

Question 11

How many Calories are in 575.0 calories?

Accepted Answer

A) 575,000 
B) 0.5750 
C) 137.6 
D) 2,404 
E) none of the above 
A) 575,000 
B) 0.5750 
C) 137.6 
D) 2,404 
E) none of the above

Question 12

Which of the following is a homogeneous mixture?

Accepted Answer

A) trail mix 
B) stainless steel 
C) water 
D) molten iron 
E) none of the above 
A) trail mix 
B) stainless steel 
C) water 
D) molten iron 
E) none of the above

Question 13

Suppose it took 108 joules of energy to raise a bar of gold from 25.0°C to 29.7°C.Given that the specific heat capacity of gold is   ,what is the mass (in grams)of the bar of gold?

Accepted Answer

A) 6.5 × 101 g 
B) 1.8 × 102 g 
C) 1.28 × 102 g 
D) 1.08 × 102 g 
E) none of the above 
A) 6.5 × 101 g 
B) 1.8 × 102 g 
C) 1.28 × 102 g 
D) 1.08 × 102 g 
E) none of the above

Question 14

Which of the following statements about physical and chemical changes is FALSE?

Accepted Answer

A) In a chemical change,matter changes its composition. 
B) In a physical change,matter does not change its composition. 
C) Phase changes are always physical changes. 
D) Chemical reactions are chemical changes. 
E) All of the above statements are true. 
A) In a chemical change,matter changes its composition. 
B) In a physical change,matter does not change its composition. 
C) Phase changes are always physical changes. 
D) Chemical reactions are chemical changes. 
E) All of the above statements are true.

Question 15

A chemical change that will lower the potential energy of the chemical results in an endothermic reaction.

Accepted Answer

A) True 
 B)False

Question 16

When methane is burned with oxygen the products are carbon dioxide and water.If you produce 36 grams of water and 44 grams of carbon dioxide from 16 grams of methane,how many grams of oxygen were needed for the reaction?

Accepted Answer

A) 32 
B) 80 
C) 96 
D) 64 
E) none of the above 
A) 32 
B) 80 
C) 96 
D) 64 
E) none of the above

Question 17

A pure substance is:

Accepted Answer

A) composed of two or more different types of atoms or molecules combined in variable proportions. 
B) composed of only one type of atom or molecule. 
C) composed of two or more regions with different compositions. 
D) composed of two or more different types of atoms or molecules that has constant composition. 
E) none of the above 
A) composed of two or more different types of atoms or molecules combined in variable proportions. 
B) composed of only one type of atom or molecule. 
C) composed of two or more regions with different compositions. 
D) composed of two or more different types of atoms or molecules that has constant composition. 
E) none of the above

Question 18

In order,what is the freezing point,room temperature and boiling point of water according to the Fahrenheit scale?

Accepted Answer

A) 32-75-212 
B) 0-75-100 
C) 0-25-100 
D) 0-298-373 
E) none of the above 
A) 32-75-212 
B) 0-75-100 
C) 0-25-100 
D) 0-298-373 
E) none of the above

Question 19

What is the value of 27°C on the Kelvin temperature scale?

Accepted Answer

A) 273 
B) 246 
C) 300 
D) 81 
E) none of the above 
A) 273 
B) 246 
C) 300 
D) 81 
E) none of the above

Question 20

What is the value of 335 K on the Celsius temperature scale?

Accepted Answer

A) 62 
B) 167 
C) 608 
D) 66.4 
E) none of the above 
A) 62 
B) 167 
C) 608 
D) 66.4 
E) none of the above

What is the value of 783 K in units of °C?

When methane is burned with oxygen,the products are carbon dioxide and water.If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen,how many grams of carbon dioxide were produced in the reaction?

Given the table of specific heat values below,what is the identity of a 10.0 g metal sample that increases by when of energy is absorbed?

Which state of matter has atomic spacing that is close together and indefinite shape?

In a chemical reaction,the substances present after the chemical change are called reactants.

An energy diagram that shows the reactants having greater energy than the products illustrates an:

What is the final temperature of 25.0 grams of water at 22.0°C after it absorbs of heat?

What type of energy is associated with the burning of gasoline?

Which type of energy is associated with motion?

When you dissolve solid sugar into water,this new solution will taste sweet.The sugar went through a chemical change.

How many Calories are in 575.0 calories?

Which of the following is a homogeneous mixture?

Suppose it took 108 joules of energy to raise a bar of gold from 25.0°C to 29.7°C.Given that the specific heat capacity of gold is ,what is the mass (in grams)of the bar of gold?

Which of the following statements about physical and chemical changes is FALSE?

A chemical change that will lower the potential energy of the chemical results in an endothermic reaction.

When methane is burned with oxygen the products are carbon dioxide and water.If you produce 36 grams of water and 44 grams of carbon dioxide from 16 grams of methane,how many grams of oxygen were needed for the reaction?

A pure substance is:

In order,what is the freezing point,room temperature and boiling point of water according to the Fahrenheit scale?

What is the value of 27°C on the Kelvin temperature scale?

What is the value of 335 K on the Celsius temperature scale?

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Exam 3: Matter and Energy

What is the value of 783 K in units of °C?

When methane is burned with oxygen,the products are carbon dioxide and water.If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen,how many grams of carbon dioxide were produced in the reaction?

Given the table of specific heat values below,what is the identity of a 10.0 g metal sample that increases by when of energy is absorbed?

Which state of matter has atomic spacing that is close together and indefinite shape?

In a chemical reaction,the substances present after the chemical change are called reactants.

An energy diagram that shows the reactants having greater energy than the products illustrates an:

What is the final temperature of 25.0 grams of water at 22.0°C after it absorbs of heat?

What type of energy is associated with the burning of gasoline?

Which type of energy is associated with motion?

When you dissolve solid sugar into water,this new solution will taste sweet.The sugar went through a chemical change.

How many Calories are in 575.0 calories?

Which of the following is a homogeneous mixture?

Suppose it took 108 joules of energy to raise a bar of gold from 25.0°C to 29.7°C.Given that the specific heat capacity of gold is ,what is the mass (in grams)of the bar of gold?

Which of the following statements about physical and chemical changes is FALSE?

A chemical change that will lower the potential energy of the chemical results in an endothermic reaction.

When methane is burned with oxygen the products are carbon dioxide and water.If you produce 36 grams of water and 44 grams of carbon dioxide from 16 grams of methane,how many grams of oxygen were needed for the reaction?

A pure substance is:

In order,what is the freezing point,room temperature and boiling point of water according to the Fahrenheit scale?

What is the value of 27°C on the Kelvin temperature scale?

What is the value of 335 K on the Celsius temperature scale?

The Chemical World

Measurement and Problem Solving

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters