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Ch 2 matter and Change
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Classify the change lighting a match A)CHEMICAL B) PHYSICAL
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Which subatomic particle plays the greatest part in determining the properties of an element? A electron B proton C neutron D nucleus
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A good definition of a chemical is any substance that a. causes corrosion. b. has a definite composition. c. is hazardous. d. is used in industrial processes.
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The smallest particle of an element that retains the properties of that element is a(n) ____. A proton B atom C electron D neutron
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When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place? A neither a physical change nor a chemical change B a physical change C both a physical change and a chemical change D a chemical change
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Which state of matter takes both the shape and volume of its container? A solid B liquid only C gas only D both b and c
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The state of matter in which a material is most likely to resist compression is the a. solid state. b. liquid state. c. gaseous state. d. vaporous state.
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Which state of matter has a definite volume and takes the shape of its container? A solid B liquid only C gas only D both b and c
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One chemical property of matter is a. boiling point. b. texture. c. reactivity. d. density.
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Classify the change water evaporating A)CHEMICAL B) PHYSICAL
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Mercury(II) oxide decomposes into mercury and oxygen. In this reaction, mercury is a. a reactant. b. a product. c. a foul-smelling substance. d. sometimes a reactant and sometimes a product.
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Classify the change chopping wood A)CHEMICAL B) PHYSICAL
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Which field of science studies the composition and structure of matter? A biology B geology C chemistry D physics
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What type of matter is formed when two or more elements chemically join together? a. compound b. element c. heterogeneous mixture d. homogeneous mixture
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Which of the following is a chemical property? A ability to react with oxygen B color C freezing point D hardness
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A chemical change occurs when a. dissolved minerals solidify to form a crystal. b. ethanol is purified through distillation. c. salt deposits form from evaporated seawater. d. a leaf changes color.
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Matter that is free to move and fills its available volume is in the ______ state. a. liquid b. solid c. gaseous d. elemental
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Which of the following observations does not indicate that a chemical change has occurred? a. change of state b. formation of a precipitate c. absorption of energy d. release of a gas
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Which of the following shows a physical change occurring? a. A peach spoils. b. A copper bowl tarnishes. c. A piece of jewelry turns your skin green. d. A hot-glue gun melts a glue stick.
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Classify the change ice melting A)CHEMICAL B) PHYSICAL
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