© 2015 Pearson Education, Inc.

Chapter 3

Matter and Energy

Laurie LeBlancCuyamaca College

Clicker Questions

© 2015 Pearson Education, Inc.

A. a solid.B. a liquid.C. a gas.D. elemental.E. molecular.

The state of matter in which molecules are widely spaced is

© 2015 Pearson Education, Inc.

A. a solid.B. a liquid.C. a gas.D. elemental.E. molecular.

The state of matter in which molecules are widely spaced is

© 2015 Pearson Education, Inc.

A. solid.B. liquid.C. gas.D. All of the above E. Two of the above

A state of matter that has a definite volume and is relatively incompressible is a

© 2015 Pearson Education, Inc.

A. solid.B. liquid.C. gas.D. All of the above E. Two of the above

A state of matter that has a definite volume and is relatively incompressible is a

© 2015 Pearson Education, Inc.

A. DiamondB. SaltC. Gold D. WaterE. Soot

Which of the following is an example of an amorphous solid?

© 2015 Pearson Education, Inc.

A. DiamondB. SaltC. Gold D. WaterE. Soot

Which of the following is an example of an amorphous solid?

© 2015 Pearson Education, Inc.

A. Lead at 25 oCB. Cold water at 21 oCC. Hot water at 95 oCD. A cool gas at 25 oCE. A hot gas at 85 oC

Which of the following has the highest average kinetic energy?

© 2015 Pearson Education, Inc.

A. Lead at 25 oCB. Cold water at 21 oCC. Hot water at 95 oCD. A cool gas at 25 oCE. A hot gas at 85 oC

Which of the following has the highest average kinetic energy?

© 2015 Pearson Education, Inc.

A. SodiumB. MilkC. BloodD. Saline solutionE. Stainless steel

Which of the following is a pure substance?

© 2015 Pearson Education, Inc.

A. SodiumB. MilkC. BloodD. Saline solutionE. Stainless steel

Which of the following is a pure substance?

© 2015 Pearson Education, Inc.

A. Sugar B. Salt C. Brass D. ChlorineE. Air

Which of the following is an element?

© 2015 Pearson Education, Inc.

A. Sugar B. Salt C. Brass D. ChlorineE. Air

Which of the following is an element?

© 2015 Pearson Education, Inc.

A. SeawaterB. Iron oreC. AirD. MilkE. All of the above

Which of the following is a mixture?

© 2015 Pearson Education, Inc.

A. SeawaterB. Iron oreC. AirD. MilkE. All of the above

Which of the following is a mixture?

© 2015 Pearson Education, Inc.

A. physical change.B. chemical change.C. quantitative property.D. physical property.E. chemical property.

Boiling point is an example of a

© 2015 Pearson Education, Inc.

A. physical change.B. chemical change.C. quantitative property.D. physical property.E. chemical property.

Boiling point is an example of a

© 2015 Pearson Education, Inc.

A. Pure substance—compound B. Pure substance—elementC. Mixture—homogeneousD. Mixture—heterogeneousE. Pure substance—homogenous

How would you classify wine?

© 2015 Pearson Education, Inc.

A. Pure substance—compound B. Pure substance—elementC. Mixture—homogeneousD. Mixture—heterogeneousE. Pure substance—homogenous

How would you classify wine?

© 2015 Pearson Education, Inc.

A. The density of a liquidB. The ability of iron to rustC. Flammability of gasolineD. Reactivity of acids with metals E. All of these are chemical properties.

Which of the following is NOT a chemical property?

© 2015 Pearson Education, Inc.

A. The density of a liquidB. The ability of iron to rustC. Flammability of gasolineD. Reactivity of acids with metals E. All of these are chemical properties.

Which of the following is NOT a chemical property?

© 2015 Pearson Education, Inc.

A. Burning butane B. Barbequing a steak C. Decomposing water into hydrogen

and oxygen gasesD. Breaking a piece of glassE. Baking a cake

Which of the following is a physical change?

© 2015 Pearson Education, Inc.

A. Burning butane B. Barbequing a steak C. Decomposing water into hydrogen

and oxygen gasesD. Breaking a piece of glassE. Baking a cake

Which of the following is a physical change?

© 2015 Pearson Education, Inc.

A. The freezing of water is a physical change. B. The conversion of compounds into elements is a

physical change. C. Combining sodium metal and chlorine gas to form

sodium chloride is a chemical change. D. Photosynthesis is an example of a chemical change.E. Distilling alcohol from water is a physical change.

Which of the following statements is FALSE?

© 2015 Pearson Education, Inc.

A. The freezing of water is a physical change. B. The conversion of compounds into elements is a

physical change. C. Combining sodium metal and chlorine gas to form

sodium chloride is a chemical change. D. Photosynthesis is an example of a chemical change.E. Distilling alcohol from water is a physical change.

Which of the following statements is FALSE?

© 2015 Pearson Education, Inc.

A. element.B. compound. C. homogenous mixture.D. heterogeneous mixture.E. pure substance.

A solution is a(n)

© 2015 Pearson Education, Inc.

A. element.B. compound. C. homogenous mixture.D. heterogeneous mixture.E. pure substance.

A solution is a(n)

© 2015 Pearson Education, Inc.

A. 115 g B. 100. gC. 85 g D. 15.0 gE. 1.0 g

When a sample of wood is burned, the mass of the reactants is 100. grams. If 15.0 g of ash is one product, what is the mass of the other products?

© 2015 Pearson Education, Inc.

A. 115 g B. 100. gC. 85 g D. 15.0 gE. 1.0 g

When a sample of wood is burned, the mass of the reactants is 100. grams. If 15.0 g of ash is one product, what is the mass of the other products?

© 2015 Pearson Education, Inc.

A. A ball falling through the airB. A dart thrown at a dart boardC. A ball rolling down a slideD. An arrow flying through the airE. All of the above

Which of the following possess(es) kinetic energy?

© 2015 Pearson Education, Inc.

A. A ball falling through the airB. A dart thrown at a dart boardC. A ball rolling down a slideD. An arrow flying through the airE. All of the above

Which of the following possess(es) kinetic energy?

© 2015 Pearson Education, Inc.

A. 2.34 kJB. 5.60 kJC. 2.34 × 103 kJD. 2.34 × 106 kJE. 5.60 × 103 kJ

How many kJ of energy are in a fast food hamburger containing 560. Calories? (Note: 1 cal = 4.184 J)

© 2015 Pearson Education, Inc.

A. 2.34 kJB. 5.60 kJC. 2.34 × 103 kJD. 2.34 × 106 kJE. 5.60 × 103 kJ

How many kJ of energy are in a fast food hamburger containing 560. Calories? (Note: 1 cal = 4.184 J)

© 2015 Pearson Education, Inc.

A. 8.17 × 103 CalB. 8.17 × 104 CalC. 8.17 × 107 CalD. 1.43 × 107 CalE. 1.43 × 109 Cal

Convert 95.0 kWh to Calories. (Note: 1 cal = 4.184 J; 1 kWh = 3.60 × 106 J)

© 2015 Pearson Education, Inc.

A. 8.17 × 103 CalB. 8.17 × 104 CalC. 8.17 × 107 CalD. 1.43 × 107 CalE. 1.43 × 109 Cal

Convert 95.0 kWh to Calories. (Note: 1 cal = 4.184 J; 1 kWh = 3.60 × 106 J)

© 2015 Pearson Education, Inc.

A. 42 oFB. 107 oFC. 107.6 oFD. 108 oFE. 315 oF

Convert 42 °C to °F and express the answer to the correct number of significant figures.

© 2015 Pearson Education, Inc.

A. 42 oFB. 107 oFC. 107.6 oFD. 108 oFE. 315 oF

Convert 42 °C to °F and express the answer to the correct number of significant figures.

© 2015 Pearson Education, Inc.

A. 369 KB. 370 KC. 397 KD. –176 KE. No answer listed

is correct.

Convert 97 °C to K and express the answer to the correct number of significant figures.

© 2015 Pearson Education, Inc.

A. 369 KB. 370 KC. 397 KD. –176 KE. No answer listed

is correct.

Convert 97 °C to K and express the answer to the correct number of significant figures.

© 2015 Pearson Education, Inc.

A. –40. °F B. –40 °F C. 40. °F D. 233 °FE. 943 °F

Convert 233 K to °F.

© 2015 Pearson Education, Inc.

A. –40. °F B. –40 °F C. 40. °F D. 233 °FE. 943 °F

Convert 233 K to °F.

© 2015 Pearson Education, Inc.

A. 1001 K B. 1001 °C C. 1 K D. –401 °CE. –401 °F

Which of the following temperatures is not possible?

© 2015 Pearson Education, Inc.

A. 1001 K B. 1001 °C C. 1 K D. –401 °CE. –401 °F

Which of the following temperatures is not possible?

© 2015 Pearson Education, Inc.

A. 36.1 JB. –36.1 JC. 0.036 JD. –0.036 JE. 0.449 J

How many joules are required to raise the temperature of 1.074 g of iron from 25.1 °C to 100.0 °C? (The specific heat of iron is 0.449 J/g • °C.)

© 2015 Pearson Education, Inc.

A. 36.1 JB. –36.1 JC. 0.036 JD. –0.036 JE. 0.449 J

How many joules are required to raise the temperature of 1.074 g of iron from 25.1 °C to 100.0 °C? (The specific heat of iron is 0.449 J/g • °C.)

© 2015 Pearson Education, Inc.

A. 23.8 °CB. 83.0 °CC. 92.5 °CD. 68.7 °CE. 44.9 °C

A 0.250 kg bar of aluminum at 23.8 °C has 15.5 KJ of heat added. What is the final temperature of the aluminum? (The specific heat of aluminum is 0.903 J/g • °C.)

© 2015 Pearson Education, Inc.

A. 23.8 °CB. 83.0 °CC. 92.5 °CD. 68.7 °CE. 44.9 °C

A 0.250 kg bar of aluminum at 23.8 °C has 15.5 KJ of heat added. What is the final temperature of the aluminum? (The specific heat of aluminum is 0.903 J/g • °C.)

© 2015 Pearson Education, Inc.

A. 1.05 × 103 kgB. 4.37 × 103 kgC. 1.05 kgD. 4.37 kgE. 6.03 kg

What is the mass (in kg) of gold that increases in temperature by 45.1 °C when 6.034 Cal of heat are added? (The specific heat of gold is 0.128 J/g • °C and 1 cal = 4.184 J.)

© 2015 Pearson Education, Inc.

A. 1.05 × 103 kgB. 4.37 × 103 kgC. 1.05 kgD. 4.37 kgE. 6.03 kg

What is the mass (in kg) of gold that increases in temperature by 45.1 °C when 6.034 Cal of heat are added? (The specific heat of gold is 0.128 J/g • °C and 1 cal = 4.184 J.)

© 2015 Pearson Education, Inc.

A. a substance that cannot be broken down any further.B. anything that has mass and occupies space.C. a substance composed of two or more elements.D. a homogeneous mixture.E. None of the above

Matter can be defined as

© 2015 Pearson Education, Inc.

A. a substance that cannot be broken down any further.B. anything that has mass and occupies space.C. a substance composed of two or more elements.D. a homogeneous mixture.E. None of the above

Matter can be defined as

© 2015 Pearson Education, Inc.

A. The reactants possess greater energy than the products.B. Energy is released as the reaction occurs.C. Energy is absorbed as the reaction occurs.D. Both a and b are true.E. Both a and c are true.

Which of the following is true of exothermic reactions?

© 2015 Pearson Education, Inc.

A. The reactants possess greater energy than the products.B. Energy is released as the reaction occurs.C. Energy is absorbed as the reaction occurs.D. Both a and b are true.E. Both a and c are true.

Which of the following is true of exothermic reactions?

© 2015 Pearson Education, Inc.

A. Water evaporates.B. Water freezes.C. Butane gas burns.D. Steam condenses.E. None of the above

Which of the following changes is endothermic?

© 2015 Pearson Education, Inc.

A. Water evaporates.B. Water freezes.C. Butane gas burns.D. Steam condenses.E. None of the above

Which of the following changes is endothermic?

© 2015 Pearson Education, Inc.

A. Iron has a greater heat capacity than water.B. Water has a greater heat capacity than iron.C. Iron and water have the same heat capacity.D. The boiling point of water is greater than that of iron.E. None of the above

Using the following information, indicate which of the choices below is correct: The temperature of iron increases more quickly than water when it is heated.

© 2015 Pearson Education, Inc.

A. Iron has a greater heat capacity than water.B. Water has a greater heat capacity than iron.C. Iron and water have the same heat capacity.D. The boiling point of water is greater than that of iron.E. None of the above

Using the following information, indicate which of the choices below is correct: The temperature of iron increases more quickly than water when it is heated.

© 2015 Pearson Education, Inc.

A. Sugar is dissolved in water.B. Copper metal is rolled into wire.C. Ice melts.D. All of the aboveE. None of the above

Which of the following is a chemical change?

© 2015 Pearson Education, Inc.

A. Sugar is dissolved in water.B. Copper metal is rolled into wire.C. Ice melts.D. All of the aboveE. None of the above

Which of the following is a chemical change?