Question 1

Bromine ( BrS1U1B12S1U1B0 )
-60 °C

Accepted Answer

boiling or

Question 2

675 cal is the same amount of energy as ________.

Accepted Answer

A) 0.161 J 
B) 2.82 J 
C) 161 J 
D) 420 J 
E) 2820 J 
A) 0.161 J 
B) 2.82 J 
C) 161 J 
D) 420 J 
E) 2820 J

Question 3

On a heating curve a plateau corresponds to ________.

Accepted Answer

A) a change in temperature of a liquid 
B) a change in temperature of a solid 
C) a change in temperature of a gas 
D) a change of state 
E) the solid being broken into smaller pieces 
A) a change in temperature of a liquid 
B) a change in temperature of a solid 
C) a change in temperature of a gas 
D) a change of state 
E) the solid being broken into smaller pieces

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is a homogeneous mixture?

Accepted Answer

A) noodle soup 
B) water 
C) sugar 
D) tea 
E) carbon 
A) noodle soup 
B) water 
C) sugar 
D) tea 
E) carbon

Question 6

The amount of heat necessary for one gram of a substance to change from the solid state to the liquid state at its melting point is the ________.

Accepted Answer

The answer of The amount of heat necessary for one...

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

A heating curve illustrates ________.

Accepted Answer

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

Question 9

Coins in a piggy bank are an example of 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 10

The ________ state of matter has a constant shape and volume.

Accepted Answer

The answer of The ________ state of matter has a...

Question 11

Liquid water changing to ice is an example of a ________ change.

Accepted Answer

The answer of Liquid water changing to ice is an...

Question 12

The heat of vaporization for water is 540 cal/g.How many kilocalories are needed to change 22 g of liquid water to steam at

Accepted Answer

A) 540 kcal 
B) 12 kcal 
C) 12000 kcal 
D) 25 kcal 
E) 1.8 kcal 
A) 540 kcal 
B) 12 kcal 
C) 12000 kcal 
D) 25 kcal 
E) 1.8 kcal

Question 13

Air is an example of a ________ mixture.

Accepted Answer

The answer of Air is an example of a ________...

Question 14

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

Accepted Answer

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

Question 15

To calculate the Kelvin temperature,subtract 273 from the Celsius temperature.

Accepted Answer

A) True 
 B)False

Question 16

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 17

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 18

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 19

Kinetic energy is the energy of motion.

Accepted Answer

A) True 
 B)False

Question 20

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

Bromine ( Br₂ ) -60 °C

675 cal is the same amount of energy as ________.

On a heating curve a plateau corresponds to ________.

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

Which of the following is a homogeneous mixture?

The amount of heat necessary for one gram of a substance to change from the solid state to the liquid state at its melting point is the ________.

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

A heating curve illustrates ________.

Coins in a piggy bank are an example of a(n)________.

The ________ state of matter has a constant shape and volume.

Liquid water changing to ice is an example of a ________ change.

The heat of vaporization for water is 540 cal/g.How many kilocalories are needed to change 22 g of liquid water to steam at

Air is an example of a ________ mixture.

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

To calculate the Kelvin temperature,subtract 273 from the Celsius temperature.

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

Which of the following is a chemical change?

Which one of the following properties describes a liquid?

Kinetic energy is the energy of motion.

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.

Chemistry in Our Lives

Chemistry and Measurement

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters

Exam 3: Matter and Energy

Bromine ( Br2 ) -60 °C

675 cal is the same amount of energy as ________.

On a heating curve a plateau corresponds to ________.

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

Which of the following is a homogeneous mixture?

The amount of heat necessary for one gram of a substance to change from the solid state to the liquid state at its melting point is the ________.

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

A heating curve illustrates ________.

Coins in a piggy bank are an example of a(n)________.

The ________ state of matter has a constant shape and volume.

Liquid water changing to ice is an example of a ________ change.

The heat of vaporization for water is 540 cal/g.How many kilocalories are needed to change 22 g of liquid water to steam at

Air is an example of a ________ mixture.

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

To calculate the Kelvin temperature,subtract 273 from the Celsius temperature.

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

Which of the following is a chemical change?

Which one of the following properties describes a liquid?

Kinetic energy is the energy of motion.

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.

Chemistry in Our Lives

Chemistry and Measurement

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters

Bromine ( Br₂ ) -60 °C