Question 1

The specific heat of a substance is the amount of heat needed to

Accepted Answer

A)  change 1 g of the substance from the liquid to the solid state. 
B)  change 1 g of the substance from the solid to the liquid state. 
C)  convert 1 g of a liquid to gas. 
D)  raise the temperature of 1 g of the substance by 1 °C. 
E)  convert 1 g of a solid to a gas. 
A)  change 1 g of the substance from the liquid to the solid state. 
B)  change 1 g of the substance from the solid to the liquid state. 
C)  convert 1 g of a liquid to gas. 
D)  raise the temperature of 1 g of the substance by 1 °C. 
E)  convert 1 g of a solid to a gas.

Question 2

The change of state directly from solid to gas is termed ________.

Accepted Answer

The answer of The change of state directly from solid...

Question 3

A potato contains 20 g of carbohydrate. If carbohydrate has a caloric value of 4 kcal/g, how many kcal are obtained from the carbohydrate in the potato?

Accepted Answer

A) 60 kcal 
B) 20 kcal 
C) 40 kcal 
D) 80 kcal 
E) 5 kcal 
A) 60 kcal 
B) 20 kcal 
C) 40 kcal 
D) 80 kcal 
E) 5 kcal

Question 4

On a hot day, the thermometer read 95 °F. What is the temperature in degrees Celsius?

Accepted Answer

A)  178 °C 
B)  113 °C 
C)  35 °C 
D)  63 °C 
E)  77 °C 
A)  178 °C 
B)  113 °C 
C)  35 °C 
D)  63 °C 
E)  77 °C

Question 5

When a solid is converted directly to a gas, the change of state is called

Accepted Answer

A) sublimation. 
B) freezing. 
C) melting. 
D) condensation. 
E) boiling. 
A) sublimation. 
B) freezing. 
C) melting. 
D) condensation. 
E) boiling.

Question 6

If the temperature is 20 °C, what is the corresponding temperature on the Fahrenheit scale?

Accepted Answer

A)  94 °F 
B)  43 °F 
C)  68 °F 
D)  -22 °F 
E)  239 °F 
A)  94 °F 
B)  43 °F 
C)  68 °F 
D)  -22 °F 
E)  239 °F

Question 7

Which of the following is a chemical change?

Accepted Answer

A) bending a steel rod 
B) making a snowman 
C) melting gold 
D) burning sugar 
E) cutting a rope 
A) bending a steel rod 
B) making a snowman 
C) melting gold 
D) burning sugar 
E) cutting a rope

Question 8

Bromine (BrS1U1B12S1U1B0) has a freezing point of -7 °C, and a boiling point of 60 °C. Indicate the state or change of state occurring at each temperature.
- 70 °C

Accepted Answer

The answer of Bromine (BrS1U1B12S1U1B0) has a freezing point of...

Question 9

Absolute zero is

Accepted Answer

A) the boiling point of liquid nitrogen. 
B) the freezing point of water using the Celsius scale. 
C) the coldest temperature possible. 
D) the temperature on the Kelvin scale corresponding to 32 °F. 
E) the freezing point of liquid nitrogen. 
A) the boiling point of liquid nitrogen. 
B) the freezing point of water using the Celsius scale. 
C) the coldest temperature possible. 
D) the temperature on the Kelvin scale corresponding to 32 °F. 
E) the freezing point of liquid nitrogen.

Question 10

The lowest temperature on the Kelvin scale is ________ K.

Accepted Answer

The answer of The lowest temperature on the Kelvin scale...

Question 11

A burn from steam at 100 °C is expected to be more severe than a burn from boiling water at 100 °C because

Accepted Answer

A)  you are more likely to come into contact with the steam than with the boiling water. 
B)  the steam will give off a larger amount of heat as it condenses. 
C)  there is more steam than water. 
D)  the steam is hotter than the boiling water. 
A)  you are more likely to come into contact with the steam than with the boiling water. 
B)  the steam will give off a larger amount of heat as it condenses. 
C)  there is more steam than water. 
D)  the steam is hotter than the boiling water.

Question 12

Will the caloric value of a 100.g hamburger be higher or lower than the caloric value of 100. g of cooking oil?

Accepted Answer

The answer of Will the caloric value of a 100.g...

Question 13

The simplest type of pure substance is a(n)________.

Accepted Answer

The answer of The simplest type of pure substance is...

Question 14

The number of calories needed to raise the temperature of 32 g of water from 12 °C to 54 °C is

Accepted Answer

A)  0.76 cal. 
B)  1300 cal. 
C)  1700 cal. 
D)  384 cal. 
E)  1.3 cal. 
A)  0.76 cal. 
B)  1300 cal. 
C)  1700 cal. 
D)  384 cal. 
E)  1.3 cal.

Question 15

1 calorie is the same amount of energy as ________ joules.

Accepted Answer

The answer of 1 calorie is the same amount of...

Question 16

A patient has a temperature of 38.5 °C. What is the temperature in degrees Fahrenheit?

Accepted Answer

A)  70.5 °F 
B)  11.7 °F 
C)  311.0 °F 
D)  126.9 °F 
E)  101.3 °F 
A)  70.5 °F 
B)  11.7 °F 
C)  311.0 °F 
D)  126.9 °F 
E)  101.3 °F

Question 17

________ cal are required to raise the temperature of 10.0 g of water by 45 °C.

Accepted Answer

The answer of  ________ cal are required to raise...

Question 18

If the temperature is -55 °C, what is the corresponding temperature on the Kelvin scale?

Accepted Answer

A)  225 K 
B)  328 K 
C)  218 K 
D)  55 K 
E)  273 K 
A)  225 K 
B)  328 K 
C)  218 K 
D)  55 K 
E)  273 K

Question 19

A color of a substance is an example of a(n)________ property.

Accepted Answer

The answer of A color of a substance is an...

Question 20

The temperature of liquid nitrogen is -196 °C. What is the corresponding reading on the Kelvin scale?

Accepted Answer

A) 48 K 
B) 77 K 
C) -127 K 
D) 146 K 
E) -91 K 
A) 48 K 
B) 77 K 
C) -127 K 
D) 146 K 
E) -91 K

Exam 3: Matter and Energy

The specific heat of a substance is the amount of heat needed to

The change of state directly from solid to gas is termed ________.

A potato contains 20 g of carbohydrate. If carbohydrate has a caloric value of 4 kcal/g, how many kcal are obtained from the carbohydrate in the potato?

On a hot day, the thermometer read 95 °F. What is the temperature in degrees Celsius?

When a solid is converted directly to a gas, the change of state is called

If the temperature is 20 °C, what is the corresponding temperature on the Fahrenheit scale?

Which of the following is a chemical change?

Bromine (Br2) has a freezing point of -7 °C, and a boiling point of 60 °C. Indicate the state or change of state occurring at each temperature. - 70 °C

Absolute zero is

The lowest temperature on the Kelvin scale is ________ K.

A burn from steam at 100 °C is expected to be more severe than a burn from boiling water at 100 °C because

Will the caloric value of a 100.g hamburger be higher or lower than the caloric value of 100. g of cooking oil?

The simplest type of pure substance is a(n)________.

The number of calories needed to raise the temperature of 32 g of water from 12 °C to 54 °C is

1 calorie is the same amount of energy as ________ joules.

A patient has a temperature of 38.5 °C. What is the temperature in degrees Fahrenheit?

________ cal are required to raise the temperature of 10.0 g of water by 45 °C.

If the temperature is -55 °C, what is the corresponding temperature on the Kelvin scale?

A color of a substance is an example of a(n)________ property.

The temperature of liquid nitrogen is -196 °C. What is the corresponding reading on the Kelvin scale?

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

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Bromine (Br₂) has a freezing point of -7 °C, and a boiling point of 60 °C. Indicate the state or change of state occurring at each temperature. - 70 °C