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Clicker Questions Chapter 3 Matter and Energy Laurie LeBlanc Cuyamaca College © 2015 Pearson Education, Inc. The state of matter in which molecules are widely spaced is A. B. C. D. E. a solid. a liquid. a gas. elemental. molecular. © 2015 Pearson Education, Inc. The state of matter in which molecules are widely spaced is A. B. C. D. E. a solid. a liquid. a gas. elemental. molecular. © 2015 Pearson Education, Inc. A state of matter that has a definite volume and is relatively incompressible is a A. B. C. D. E. solid. liquid. gas. All of the above Two of the above © 2015 Pearson Education, Inc. A state of matter that has a definite volume and is relatively incompressible is a A. B. C. D. E. solid. liquid. gas. All of the above Two of the above © 2015 Pearson Education, Inc. Which of the following is an example of an amorphous solid? A. B. C. D. E. Diamond Salt Gold Water Soot © 2015 Pearson Education, Inc. Which of the following is an example of an amorphous solid? A. B. C. D. E. Diamond Salt Gold Water Soot © 2015 Pearson Education, Inc. Which of the following has the highest average kinetic energy? A. B. C. D. E. Lead at 25 oC Cold water at 21 oC Hot water at 95 oC A cool gas at 25 oC A hot gas at 85 oC © 2015 Pearson Education, Inc. Which of the following has the highest average kinetic energy? A. B. C. D. E. Lead at 25 oC Cold water at 21 oC Hot water at 95 oC A cool gas at 25 oC A hot gas at 85 oC © 2015 Pearson Education, Inc. Which of the following is a pure substance? A. B. C. D. E. Sodium Milk Blood Saline solution Stainless steel © 2015 Pearson Education, Inc. Which of the following is a pure substance? A. B. C. D. E. Sodium Milk Blood Saline solution Stainless steel © 2015 Pearson Education, Inc. Which of the following is an element? A. B. C. D. E. Sugar Salt Brass Chlorine Air © 2015 Pearson Education, Inc. Which of the following is an element? A. B. C. D. E. Sugar Salt Brass Chlorine Air © 2015 Pearson Education, Inc. Which of the following is a mixture? A. B. C. D. E. Seawater Iron ore Air Milk All of the above © 2015 Pearson Education, Inc. Which of the following is a mixture? A. B. C. D. E. Seawater Iron ore Air Milk All of the above © 2015 Pearson Education, Inc. Boiling point is an example of a A. B. C. D. E. physical change. chemical change. quantitative property. physical property. chemical property. © 2015 Pearson Education, Inc. Boiling point is an example of a A. B. C. D. E. physical change. chemical change. quantitative property. physical property. chemical property. © 2015 Pearson Education, Inc. How would you classify wine? A. B. C. D. E. Pure substance—compound Pure substance—element Mixture—homogeneous Mixture—heterogeneous Pure substance—homogenous © 2015 Pearson Education, Inc. How would you classify wine? A. B. C. D. E. Pure substance—compound Pure substance—element Mixture—homogeneous Mixture—heterogeneous Pure substance—homogenous © 2015 Pearson Education, Inc. Which of the following is NOT a chemical property? A. B. C. D. E. The density of a liquid The ability of iron to rust Flammability of gasoline Reactivity of acids with metals All of these are chemical properties. © 2015 Pearson Education, Inc. Which of the following is NOT a chemical property? A. B. C. D. E. The density of a liquid The ability of iron to rust Flammability of gasoline Reactivity of acids with metals All of these are chemical properties. © 2015 Pearson Education, Inc. Which of the following is a physical change? A. Burning butane B. Barbequing a steak C. Decomposing water into hydrogen and oxygen gases D. Breaking a piece of glass E. Baking a cake © 2015 Pearson Education, Inc. Which of the following is a physical change? A. Burning butane B. Barbequing a steak C. Decomposing water into hydrogen and oxygen gases D. Breaking a piece of glass E. Baking a cake © 2015 Pearson Education, Inc. Which of the following statements is FALSE? 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. © 2015 Pearson Education, Inc. Which of the following statements is FALSE? 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. © 2015 Pearson Education, Inc. A solution is a(n) A. B. C. D. E. element. compound. homogenous mixture. heterogeneous mixture. pure substance. © 2015 Pearson Education, Inc. A solution is a(n) A. B. C. D. E. element. compound. homogenous mixture. heterogeneous mixture. pure substance. © 2015 Pearson Education, Inc. 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? A. B. C. D. E. 115 g 100. g 85 g 15.0 g 1.0 g © 2015 Pearson Education, Inc. 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? A. B. C. D. E. 115 g 100. g 85 g 15.0 g 1.0 g © 2015 Pearson Education, Inc. Which of the following possess(es) kinetic energy? A. B. C. D. E. A ball falling through the air A dart thrown at a dart board A ball rolling down a slide An arrow flying through the air All of the above © 2015 Pearson Education, Inc. Which of the following possess(es) kinetic energy? A. B. C. D. E. A ball falling through the air A dart thrown at a dart board A ball rolling down a slide An arrow flying through the air All of the above © 2015 Pearson Education, Inc. How many kJ of energy are in a fast food hamburger containing 560. Calories? (Note: 1 cal = 4.184 J) A. B. C. D. E. 2.34 kJ 5.60 kJ 2.34 × 103 kJ 2.34 × 106 kJ 5.60 × 103 kJ © 2015 Pearson Education, Inc. How many kJ of energy are in a fast food hamburger containing 560. Calories? (Note: 1 cal = 4.184 J) A. B. C. D. E. 2.34 kJ 5.60 kJ 2.34 × 103 kJ 2.34 × 106 kJ 5.60 × 103 kJ © 2015 Pearson Education, Inc. Convert 95.0 kWh to Calories. (Note: 1 cal = 4.184 J; 1 kWh = 3.60 × 106 J) A. B. C. D. E. 8.17 × 103 Cal 8.17 × 104 Cal 8.17 × 107 Cal 1.43 × 107 Cal 1.43 × 109 Cal © 2015 Pearson Education, Inc. Convert 95.0 kWh to Calories. (Note: 1 cal = 4.184 J; 1 kWh = 3.60 × 106 J) A. B. C. D. E. 8.17 × 103 Cal 8.17 × 104 Cal 8.17 × 107 Cal 1.43 × 107 Cal 1.43 × 109 Cal © 2015 Pearson Education, Inc. Convert 42 °C to °F and express the answer to the correct number of significant figures. A. B. C. D. E. 42 oF 107 oF 107.6 oF 108 oF 315 oF © 2015 Pearson Education, Inc. Convert 42 °C to °F and express the answer to the correct number of significant figures. A. B. C. D. E. 42 oF 107 oF 107.6 oF 108 oF 315 oF © 2015 Pearson Education, Inc. Convert 97 °C to K and express the answer to the correct number of significant figures. A. B. C. D. E. 369 K 370 K 397 K –176 K No answer listed is correct. © 2015 Pearson Education, Inc. Convert 97 °C to K and express the answer to the correct number of significant figures. A. B. C. D. E. 369 K 370 K 397 K –176 K No answer listed is correct. © 2015 Pearson Education, Inc. Convert 233 K to °F. A. B. C. D. E. –40. °F –40 °F 40. °F 233 °F 943 °F © 2015 Pearson Education, Inc. Convert 233 K to °F. A. B. C. D. E. –40. °F –40 °F 40. °F 233 °F 943 °F © 2015 Pearson Education, Inc. Which of the following temperatures is not possible? A. B. C. D. E. 1001 K 1001 °C 1K –401 °C –401 °F © 2015 Pearson Education, Inc. Which of the following temperatures is not possible? A. B. C. D. E. 1001 K 1001 °C 1K –401 °C –401 °F © 2015 Pearson Education, Inc. 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.) A. B. C. D. E. 36.1 J –36.1 J 0.036 J –0.036 J 0.449 J © 2015 Pearson Education, Inc. 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.) A. B. C. D. E. 36.1 J –36.1 J 0.036 J –0.036 J 0.449 J © 2015 Pearson Education, Inc. 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.) A. B. C. D. E. 23.8 °C 83.0 °C 92.5 °C 68.7 °C 44.9 °C © 2015 Pearson Education, Inc. 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.) A. B. C. D. E. 23.8 °C 83.0 °C 92.5 °C 68.7 °C 44.9 °C © 2015 Pearson Education, Inc. 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.) A. B. C. D. E. 1.05 × 103 kg 4.37 × 103 kg 1.05 kg 4.37 kg 6.03 kg © 2015 Pearson Education, Inc. 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.) A. B. C. D. E. 1.05 × 103 kg 4.37 × 103 kg 1.05 kg 4.37 kg 6.03 kg © 2015 Pearson Education, Inc. Matter can be defined as A. B. C. D. E. a substance that cannot be broken down any further. anything that has mass and occupies space. a substance composed of two or more elements. a homogeneous mixture. None of the above © 2015 Pearson Education, Inc. Matter can be defined as A. B. C. D. E. a substance that cannot be broken down any further. anything that has mass and occupies space. a substance composed of two or more elements. a homogeneous mixture. None of the above © 2015 Pearson Education, Inc. Which of the following is true of exothermic reactions? A. B. C. D. E. The reactants possess greater energy than the products. Energy is released as the reaction occurs. Energy is absorbed as the reaction occurs. Both a and b are true. Both a and c are true. © 2015 Pearson Education, Inc. Which of the following is true of exothermic reactions? A. B. C. D. E. The reactants possess greater energy than the products. Energy is released as the reaction occurs. Energy is absorbed as the reaction occurs. Both a and b are true. Both a and c are true. © 2015 Pearson Education, Inc. Which of the following changes is endothermic? A. B. C. D. E. Water evaporates. Water freezes. Butane gas burns. Steam condenses. None of the above © 2015 Pearson Education, Inc. Which of the following changes is endothermic? A. B. C. D. E. Water evaporates. Water freezes. Butane gas burns. Steam condenses. None of the above © 2015 Pearson Education, Inc. 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. A. B. C. D. E. Iron has a greater heat capacity than water. Water has a greater heat capacity than iron. Iron and water have the same heat capacity. The boiling point of water is greater than that of iron. None of the above © 2015 Pearson Education, Inc. 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. A. B. C. D. E. Iron has a greater heat capacity than water. Water has a greater heat capacity than iron. Iron and water have the same heat capacity. The boiling point of water is greater than that of iron. None of the above © 2015 Pearson Education, Inc. Which of the following is a chemical change? A. B. C. D. E. Sugar is dissolved in water. Copper metal is rolled into wire. Ice melts. All of the above None of the above © 2015 Pearson Education, Inc. Which of the following is a chemical change? A. B. C. D. E. Sugar is dissolved in water. Copper metal is rolled into wire. Ice melts. All of the above None of the above © 2015 Pearson Education, Inc.