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Clicker Questions

Chapter 1

Barbara MoweryYork College

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Apple juice is an exampleof a(an)

a. element.b. compound.c. homogeneous mixture.d. heterogeneous mixture.

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Apple juice is an exampleof a(an)

a. element.b. compound.c. homogeneous mixture.d. heterogeneous mixture.

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Which of the following is not a pure substance?

a. waterb. carbon dioxidec. carbond. air

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Which of the following is not a pure substance?

a. waterb. carbon dioxidec. carbond. air

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Solutions may be

a. solids.b. liquids.c. gases.d. All of the above

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Solutions may be

a. solids.b. liquids.c. gases.d. All of the above

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Descriptions of a sample that are based on the amount of substance are called

a. physical properties.b. chemical properties.c. intensive properties.d. extensive properties.

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Descriptions of a sample that are based on the amount of substance are called

a. physical properties.b. chemical properties.c. intensive properties.d. extensive properties.

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Properties that describe the way a substance reacts to form other substances are called

a. physical properties.b. chemical properties.c. homogeneous properties.d. heterogeneous properties.

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Properties that describe the way a substance reacts to form other substances are called

a. physical properties.b. chemical properties.c. homogeneous properties.d. heterogeneous properties.

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Acetic acid that was liquid when stored was solid when a student looked for it on a cold morning. This illustrates

a. a change in solubility. b. a chemical change.c. an equilibrium state. d. a physical change.

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Acetic acid that was liquid when stored was solid when a student looked for it on a cold morning. This illustrates

a. a change in solubility. b. a chemical change.c. an equilibrium state. d. a physical change.

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A copper wire placed in a silver nitrate solution turns dark and “fuzzy.” This illustrates

a. an accident.b. a chemical reaction.c. an extensive property. d. a physical change.

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A copper wire placed in a silver nitrate solution turns dark and “fuzzy.” This illustrates

a. an accident.b. a chemical reaction.c. an extensive property. d. a physical change.

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Which statement explains the difference between a scientific law (X) and a scientific theory (Y)?

a. X is proven; Y is not proven.b. X is not proven; Y is proven.c. X tells what happens; Y explains why

things happen.d. X explains why things happen;

Y tells what happens.

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Which statement explains the difference between a scientific law (X) and a scientific theory (Y)?

a. X is proven; Y is not proven.b. X is not proven; Y is proven.c. X tells what happens; Y explains

why things happen.d. X explains why things happen;

Y tells what happens.

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When nitric acid is mixed with copper metal, a brown gas forms. This is an example of

a. an accident.b. a chemical reaction.c. a physical property.d. an extensive property.

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When nitric acid is mixed with copper metal, a brown gas forms. This is an example of

a. an accident.b. a chemical reaction.c. a physical property.d. an extensive property.

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A solution with a boiling point of 105 degrees Celsius contains either sugar or salt. How would you determine which is present?

a. distill the solutionb. filter the solutionc. use chromatographyd. taste the solution

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A solution with a boiling point of 105 degrees Celsius contains either sugar or salt. How would you determine which is present?

a. distill the solutionb. filter the solutionc. use chromatographyd. taste the solution

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Heat flows from an object

a. at high temperature to an object at low temperature.

b. at low temperature to an object at high temperature.

c. to another object at the same temperature.

d. at high elevation to an object at low elevation.

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Heat flows from an object

a. at high temperature to an object at low temperature.

b. at low temperature to an object at high temperature.

c. to another object at the same temperature.

d. at high elevation to an object at low elevation.

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In three trials, a student measures a sample’s mass to be to be0.100 g, 0.600 g, and 0.300 g. The accepted value is 0.340 g. The student’s data have

a. good accuracy and good precision.b. good accuracy, but poor precision.c. poor accuracy, but good precision.d. poor accuracy and poor precision.

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a. good accuracy and good precision.b. good accuracy, but poor precision.c. poor accuracy, but good precision.d. poor accuracy and poor precision.

In three trials, a student measures a sample’s mass to be to be0.100 g, 0.600 g, and 0.300 g. The accepted value is 0.340 g. The student’s data have

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The measured quantity 0.0860 g contains _____ significant figures.

a. threeb. fourc. fived. six

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a. threeb. fourc. fived. six

The measured quantity 0.0860 g contains _____ significant figures.

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4.1 g + 7.08 g = _____ g

a. 11.180b. 11.18c. 11.2d. 11

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4.1 g + 7.08 g = _____ g

a. 11.180b. 11.18c. 11.2d. 11

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6.9 g – 5.07 g = _____ g

a. 1.830b. 1.83c. 1.8d. 1

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6.9 g – 5.07 g = _____ g

a. 1.830b. 1.83c. 1.8d. 1

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5.2 cm × 7.01 cm = ____ cm2

a. 36b. 36.4c. 36.45d. 36.452

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5.2 cm × 7.01 cm = ____ cm2

a. 36b. 36.4c. 36.45d. 36.452

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6.03 g ÷ 7.1 mL = _____ g/mL

a. 0.8b. 0.85c. 0.849d. 0.849257

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6.03 g ÷ 7.1 mL = _____ g/mL

a. 0.8b. 0.85c. 0.849d. 0.849257

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120 mL = _____ fl oz

a. 2b. 4c. 6d. 8

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120 mL = _____ fl oz

a. 2b. 4c. 6d. 8

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A temperature of –40 degrees Celsius is the same as (X) degrees Fahrenheit and (Y) kelvins.

a. X = –40, Y = 233b. X = 233, Y = –40c. X = 10, Y = 233d. X = 233, Y = 10

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A temperature of –40 degrees Celsius is the same as (X) degrees Fahrenheit and (Y) kelvins.

a. X = –40, Y = 233b. X = 233, Y = –40c. X = 10, Y = 233d. X = 233, Y = 10

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Which measurement is expressed in non-SI units?

a. 12.9 Angstroms (Å)b. 47.2 milliliters (mL)c. 16.8 kilograms (kg)d. 42.6 micrometers (µm)

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Which measurement is expressed in non-SI units?

a. 12.9 Angstroms (Å)b. 47.2 milliliters (mL)c. 16.8 kilograms (kg)d. 42.6 micrometers (µm)

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Which unit is not an SIbase unit?

a. kilogramb. degree Celsiusc. meterd. second

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Which unit is not an SIbase unit?

a. kilogramb. degree Celsiusc. meterd. second