Question 1

On the Celsius scale, 0 °C is

Accepted Answer

A)  the boiling point of water 
B)  the temperature on the Kelvin scale corresponding to 32 °F. 
C)  the coldest temperature possible. 
D)  the same as 0 K. 
E)  the freezing point of water. 
A)  the boiling point of water 
B)  the temperature on the Kelvin scale corresponding to 32 °F. 
C)  the coldest temperature possible. 
D)  the same as 0 K. 
E)  the freezing point of water.

Question 2

Which of the following is a physical change?

Accepted Answer

A) fermenting grapes to produce wine 
B) dry ice subliming 
C) a tomato ripening 
D) baking a cake 
E) digesting a meal 
A) fermenting grapes to produce wine 
B) dry ice subliming 
C) a tomato ripening 
D) baking a cake 
E) digesting a meal

Question 3

Which of the following does NOT involve a change of state?

Accepted Answer

A) vaporization of alcohol 
B) sublimation of dry ice 
C) pouring water into a vacuum-insulated bottle 
D) freezing water 
E) melting ice 
A) vaporization of alcohol 
B) sublimation of dry ice 
C) pouring water into a vacuum-insulated bottle 
D) freezing water 
E) melting ice

Question 4

The energy stored in the chemical bonds of a carbohydrate molecule is

Accepted Answer

A) specific heat. 
B) kinetic energy. 
C) potential energy. 
D) a calorie. 
E) work. 
A) specific heat. 
B) kinetic energy. 
C) potential energy. 
D) a calorie. 
E) work.

Question 5

A mixture which has uniform properties is a(n)________ mixture.

Accepted Answer

The answer of A mixture which has uniform properties is...

Question 6

The energy associated with the motion of particles in a substance is called

Accepted Answer

A) heat. 
B) potential energy. 
C) temperature. 
D) chemical energy. 
E) electrical energy. 
A) heat. 
B) potential energy. 
C) temperature. 
D) chemical energy. 
E) electrical energy.

Question 7

A reaction of a substance with water is an example of a(n)________ property.

Accepted Answer

The answer of A reaction of a substance with water...

Question 8

Air is a(n)

Accepted Answer

A) compound. 
B) heterogeneous mixture. 
C) element. 
D) homogeneous mixture. 
A) compound. 
B) heterogeneous mixture. 
C) element. 
D) homogeneous mixture.

Question 9

The physical state(s)present when a substance is melting is (are)

Accepted Answer

A) liquid + gas. 
B) solid + liquid. 
C) liquid. 
D) gas. 
E) solid. 
A) liquid + gas. 
B) solid + liquid. 
C) liquid. 
D) gas. 
E) solid.

Question 10

How many calories are required to raise the temperature of a 35.0 g sample of iron from 25 °C to 35 °C? Iron has a specific heat of 0.108 cal/g °C.

Accepted Answer

A)  1.1 cal 
B)  38 cal 
C)  130 cal 
D)  3.8 cal 
E)  93 cal 
A)  1.1 cal 
B)  38 cal 
C)  130 cal 
D)  3.8 cal 
E)  93 cal

Question 11

A kilocalorie of heat is required to raise the temperature of

Accepted Answer

A)  1 g of water from 14 °C to 15 °C. 
B)  10 g of water by 10 °C. 
C)  100 g of water by 100 °C. 
D)  100 g of water by 10 °C. 
E)  1 g of water by 10 °C. 
A)  1 g of water from 14 °C to 15 °C. 
B)  10 g of water by 10 °C. 
C)  100 g of water by 100 °C. 
D)  100 g of water by 10 °C. 
E)  1 g of water by 10 °C.

Question 12

A cheeseburger from a fast food restaurant contains 19 g of fat, 20. g of carbohydrate, and 28 g of protein. How many kcal of energy does the cheeseburger contain? (The caloric values for foods are 9.0 kcal/g for fat, 4.0 kcal/g
For carbohydrate, and 4.0 kcal/g for protein.)Round off the answer for each food type to the tens place.

Accepted Answer

A) 17 kcal 
B) 280 kcal 
C) 630 kcal 
D) 70. kcal 
E) 360 kcal 
A) 17 kcal 
B) 280 kcal 
C) 630 kcal 
D) 70. kcal 
E) 360 kcal

Question 13

How many calories are required to raise the temperature of a 150. g sample of gold from 25 °C to 175 °C? The specific heat of gold is 0.0308 cal/g °C.

Accepted Answer

A)  693 cal 
B)  22500 cal 
C)  4.62 cal 
D)  130 cal 
E)  116 cal 
A)  693 cal 
B)  22500 cal 
C)  4.62 cal 
D)  130 cal 
E)  116 cal

Question 14

Which of the following would NOT be a physical change?

Accepted Answer

A) melting gold to make jewelry 
B) burning gasoline in a lawnmower 
C) freezing water to make ice cubes 
D) tearing a piece of aluminum foil 
E) boiling water for soup 
A) melting gold to make jewelry 
B) burning gasoline in a lawnmower 
C) freezing water to make ice cubes 
D) tearing a piece of aluminum foil 
E) boiling water for soup

Question 15

The primary substances of which all other things are composed are

Accepted Answer

A) elements. 
B) protons. 
C) molecules. 
D) electrons. 
E) compounds. 
A) elements. 
B) protons. 
C) molecules. 
D) electrons. 
E) compounds.

Question 16

How many joules are required to raise the temperature of a 6.50 g sample of silver from 34 °C to 189 °C? The specific heat of gold is 0.235 J/g °C.

Accepted Answer

A)  127 J 
B)  51.9 J 
C)  289 J 
D)  237 J 
E)  255 J 
A)  127 J 
B)  51.9 J 
C)  289 J 
D)  237 J 
E)  255 J

Question 17

The phrase "ability to do work" is a definition of

Accepted Answer

A) calorie. 
B) energy. 
C) specific heat. 
D) cooling. 
E) heating. 
A) calorie. 
B) energy. 
C) specific heat. 
D) cooling. 
E) heating.

On the Celsius scale, 0 °C is

Which of the following is a physical change?

Which of the following does NOT involve a change of state?

The energy stored in the chemical bonds of a carbohydrate molecule is

A mixture which has uniform properties is a(n)________ mixture.

The energy associated with the motion of particles in a substance is called

A reaction of a substance with water is an example of a(n)________ property.

Air is a(n)

The physical state(s)present when a substance is melting is (are)

How many calories are required to raise the temperature of a 35.0 g sample of iron from 25 °C to 35 °C? Iron has a specific heat of 0.108 cal/g °C.

A kilocalorie of heat is required to raise the temperature of

How many calories are required to raise the temperature of a 150. g sample of gold from 25 °C to 175 °C? The specific heat of gold is 0.0308 cal/g °C.

Which of the following would NOT be a physical change?

The primary substances of which all other things are composed are

How many joules are required to raise the temperature of a 6.50 g sample of silver from 34 °C to 189 °C? The specific heat of gold is 0.235 J/g °C.

The phrase "ability to do work" is a definition of

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Exam 3: Matter and Energy

On the Celsius scale, 0 °C is

Which of the following is a physical change?

Which of the following does NOT involve a change of state?

The energy stored in the chemical bonds of a carbohydrate molecule is

A mixture which has uniform properties is a(n)________ mixture.

The energy associated with the motion of particles in a substance is called

A reaction of a substance with water is an example of a(n)________ property.

Air is a(n)

The physical state(s)present when a substance is melting is (are)

How many calories are required to raise the temperature of a 35.0 g sample of iron from 25 °C to 35 °C? Iron has a specific heat of 0.108 cal/g °C.

A kilocalorie of heat is required to raise the temperature of

How many calories are required to raise the temperature of a 150. g sample of gold from 25 °C to 175 °C? The specific heat of gold is 0.0308 cal/g °C.

Which of the following would NOT be a physical change?

The primary substances of which all other things are composed are

How many joules are required to raise the temperature of a 6.50 g sample of silver from 34 °C to 189 °C? The specific heat of gold is 0.235 J/g °C.

The phrase "ability to do work" is a definition of

Chemistry in Our Lives

Chemistry and Measurements

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Phenols, Thiols, and Ethers

Aldehydes and Ketones

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

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