Question 1

Coins in a piggy bank 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 2

The units of specific heat are ________.

Accepted Answer

The answer of The units of specific heat are ________....

Question 3

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.
--7 °C

Accepted Answer

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

Question 4

A heating curve illustrates

Accepted Answer

A) what happens to the heat applied as the temperature is increased. 
B) what happens to the particles of a substance as it is heated. 
C) what a substance looks like as it is heated. 
D) the chemical changes that occur as the substance is heated. 
E) the changes in the temperature and physical state of a substance as it is heated. 
A) what happens to the heat applied as the temperature is increased. 
B) what happens to the particles of a substance as it is heated. 
C) what a substance looks like as it is heated. 
D) the chemical changes that occur as the substance is heated. 
E) the changes in the temperature and physical state of a substance as it is heated.

Question 5

A temperature of 41 °F is the same as

Accepted Answer

A)  16 °C. 
B)  310 °C. 
C)  42 °C. 
D)  5 °C. 
E)  -9 °C. 
A)  16 °C. 
B)  310 °C. 
C)  42 °C. 
D)  5 °C. 
E)  -9 °C.

Question 6

Helium is a(n)

Accepted Answer

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

Question 7

An example of kinetic energy is

Accepted Answer

A) natural gas. 
B) a tree. 
C) running water. 
D) chemical energy. 
E) a coiled spring. 
A) natural gas. 
B) a tree. 
C) running water. 
D) chemical energy. 
E) a coiled spring.

Question 8

The formation of a gas resulting from the escape of high-energy particles from the surface of a liquid is known as

Accepted Answer

A) melting. 
B) sublimation. 
C) boiling. 
D) evaporation. 
E) deposition. 
A) melting. 
B) sublimation. 
C) boiling. 
D) evaporation. 
E) deposition.

Question 9

In a gas, the distance between the particles is

Accepted Answer

A) very close relative to the size of the molecules. 
B) close relative to the size of the molecules. 
C) very large relative to the size of the molecules. 
D) small relative to the size of the molecules. 
E) fixed relative to the size of the molecules. 
A) very close relative to the size of the molecules. 
B) close relative to the size of the molecules. 
C) very large relative to the size of the molecules. 
D) small relative to the size of the molecules. 
E) fixed relative to the size of the molecules.

Question 10

Which of the following is an example of potential energy?

Accepted Answer

A) a fan blade turning 
B) riding an exercise bike 
C) chewing food 
D) water stored in a reservoir 
E) burning wood 
A) a fan blade turning 
B) riding an exercise bike 
C) chewing food 
D) water stored in a reservoir 
E) burning wood

Question 11

The nutritional calorie (Cal)is the same as ________ cal.

Accepted Answer

The answer of The nutritional calorie (Cal)is the same as...

Question 12

Which of the following is a physical property of both liquids and gases?

Accepted Answer

A) has large spaces between molecules 
B) has strong interactions between its particles 
C) has a definite volume 
D) has a definite shape 
E) has randomly arranged particles 
A) has large spaces between molecules 
B) has strong interactions between its particles 
C) has a definite volume 
D) has a definite shape 
E) has randomly arranged particles

Question 13

When a liquid boils, the process by which the molecules leave its surface is called ________.

Accepted Answer

The answer of When a liquid boils, the process by...

Question 14

Which of the following is an example of a physical change?

Accepted Answer

A) digesting a cheeseburger 
B) converting water to hydrogen and oxygen 
C) baking a cake 
D) grinding coffee beans 
E) burning coal 
A) digesting a cheeseburger 
B) converting water to hydrogen and oxygen 
C) baking a cake 
D) grinding coffee beans 
E) burning coal

Question 15

Raising the temperature of 10.0 g of water from 10.0 °C to 20.0 °C requires 100.0 cal of energy, while raising the temperature of 10.0 g of aluminum from 10.0 °C to 20.0 °C requires 22 cal. More calories are required to heat the water because

Accepted Answer

A)  ten grams of water occupies a larger volume than 10.0 g of aluminum. 
B)  10.0 °C is closer to the melting point of water than to the melting point of aluminum. 
C)  water is a liquid and aluminum is a solid at 10.0 °C. 
D)  water has a larger specific heat than aluminum. 
E)  water has a greater potential energy than aluminum. 
A)  ten grams of water occupies a larger volume than 10.0 g of aluminum. 
B)  10.0 °C is closer to the melting point of water than to the melting point of aluminum. 
C)  water is a liquid and aluminum is a solid at 10.0 °C. 
D)  water has a larger specific heat than aluminum. 
E)  water has a greater potential energy than aluminum.

Question 16

The energy of motion is referred to as

Accepted Answer

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

Question 17

An ice cream sundae 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 18

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.
- -15 °C

Accepted Answer

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

Question 19

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

Accepted Answer

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

Question 20

A serving of fish contains 50.g of protein and 4.0 g of fat. If protein has a caloric value of 4.0 kcal/g and fat has 9.0 kcal/g, how many kcal are in the serving? Round off the answer for each food type to the tens place.

Accepted Answer

A) 470 kcal 
B) 220 kcal 
C) 490 kcal 
D) 240 kcal 
E) 54.0 kcal 
A) 470 kcal 
B) 220 kcal 
C) 490 kcal 
D) 240 kcal 
E) 54.0 kcal

Exam 3: Matter and Energy

Coins in a piggy bank is a(n)

The units of specific heat are ________.

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. --7 °C

A heating curve illustrates

A temperature of 41 °F is the same as

Helium is a(n)

An example of kinetic energy is

The formation of a gas resulting from the escape of high-energy particles from the surface of a liquid is known as

In a gas, the distance between the particles is

Which of the following is an example of potential energy?

The nutritional calorie (Cal)is the same as ________ cal.

Which of the following is a physical property of both liquids and gases?

When a liquid boils, the process by which the molecules leave its surface is called ________.

Which of the following is an example of a physical change?

Raising the temperature of 10.0 g of water from 10.0 °C to 20.0 °C requires 100.0 cal of energy, while raising the temperature of 10.0 g of aluminum from 10.0 °C to 20.0 °C requires 22 cal. More calories are required to heat the water because

The energy of motion is referred to as

An ice cream sundae is a(n)

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. - -15 °C

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

A serving of fish contains 50.g of protein and 4.0 g of fat. If protein has a caloric value of 4.0 kcal/g and fat has 9.0 kcal/g, how many kcal are in the serving? Round off the answer for each food type to the tens place.

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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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. --7 °C

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. - -15 °C