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Problem Solving Center
Homework 1

1 .       Which of the following is a pure substance?

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2 .       Passing an electric current through a certain substance produces oxygen and sulfur. This substance cannot be a(n)

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3 .       Pick the chemical change that occurs when a match is held over a piece of metal.

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4 .       Which identification is incorrect for the elements listed?

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5 .       Which of the following is the smallest mass?

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6 .       Which of the following is not a state of matter?

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7 .       Which of the following statements is false?

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8 .       Which of the following is a chemical process?

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9 .       Which of the following is an intensive quantity?

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10 .       Which number is incorrectly labeled?

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11 .       Which of the following listed properties below is an extensive, physical property of sugar?

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12 .       Which of the following common objects weighs closest to 1 gram?

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