Question 1

650. J is the same amount of energy as

Accepted Answer

A) 155 cal. 
B) 2720 cal. 
C) 650 cal. 
D) 1550 cal. 
E) 2.72 cal. 
A) 155 cal. 
B) 2720 cal. 
C) 650 cal. 
D) 1550 cal. 
E) 2.72 cal.

Question 2

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.
-60 °C

Accepted Answer

boiling or

Question 3

When a liquid is boiling, its temperature does not change.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is a chemical change?

Accepted Answer

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

Question 5

Absolute zero is

Accepted Answer

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

Question 6

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

Question 7

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

Question 8

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

Question 9

Which of the following does NOT represent a step on the heating curve of water?

Accepted Answer

A) The temperature of steam cannot exceed 100 °C. 
B) The temperature of ice remains at 0 °C as it melts. 
C) The temperature of liquid water increases linearly as it is heated. 
D) The temperature of liquid water remains at 100 °C as it boils. 
E) Both liquid water and ice are present at 0 °C. 
A) The temperature of steam cannot exceed 100 °C. 
B) The temperature of ice remains at 0 °C as it melts. 
C) The temperature of liquid water increases linearly as it is heated. 
D) The temperature of liquid water remains at 100 °C as it boils. 
E) Both liquid water and ice are present at 0 °C.

Question 10

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

Accepted Answer

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

Question 11

Coins in a piggy bank is a(n)

Accepted Answer

A) compound. 
B) heterogeneous mixture. 
C) element. 
D) homogeneous mixture. 
E) None of the above. 
A) compound. 
B) heterogeneous mixture. 
C) element. 
D) homogeneous mixture. 
E) None of the above.

Question 12

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

Accepted Answer

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

Question 13

In which of the following would the particles move most rapidly?

Accepted Answer

A) ice at -20 °C 
B) water at 20 °C 
C) steam at 110 °C 
D) boiling water 
E) ice at 0 °C 
A) ice at -20 °C 
B) water at 20 °C 
C) steam at 110 °C 
D) boiling water 
E) ice at 0 °C

Question 14

As heat is removed from a solid, its temperature decreases.

Accepted Answer

A) True 
 B)False

Question 15

Black coffee is a homogeneous mixture.

Accepted Answer

A) True 
 B)False

Question 16

The temperature at which water melts and freezes is the same.

Accepted Answer

A) True 
 B)False

Question 17

Which one of the following properties describes a liquid?

Accepted Answer

A) has its own shape 
B) particles are close together and move randomly 
C) particles move very rapidly 
D) fills the entire volume of the container 
E) There is essentially no interaction between the particles. 
A) has its own shape 
B) particles are close together and move randomly 
C) particles move very rapidly 
D) fills the entire volume of the container 
E) There is essentially no interaction between the particles.

Question 18

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

Accepted Answer

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

Question 19

One cup of kidney beans contains 15 g of protein, 1.0 g of fat, and 42 g of carbohydrate. How many kilocalories, to two significant figures, does this sample contain?

Accepted Answer

A) 60 kcal 
B) 88 kcal 
C) 230 kcal 
D) 240 kcal 
E) 520 kcal 
A) 60 kcal 
B) 88 kcal 
C) 230 kcal 
D) 240 kcal 
E) 520 kcal

Question 20

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...

Exam 3: Energy and Matter

650. J is the same amount of energy as

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. -60 °C

When a liquid is boiling, its temperature does not change.

Which of the following is a chemical change?

Absolute zero is

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

A kilocalorie of heat is required to raise the temperature of

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

Which of the following does NOT represent a step on the heating curve of water?

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

Coins in a piggy bank is a(n)

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

In which of the following would the particles move most rapidly?

As heat is removed from a solid, its temperature decreases.

Black coffee is a homogeneous mixture.

The temperature at which water melts and freezes is the same.

Which one of the following properties describes a liquid?

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

One cup of kidney beans contains 15 g of protein, 1.0 g of fat, and 42 g of carbohydrate. How many kilocalories, to two significant figures, does this sample contain?

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

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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. -60 °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