Exam 1: What Is Chemistry

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Match the element with its symbol. -Platinum

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Verified

C

The "disappearance" of mothballs is an example of ________.

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D

A theory summarizes facts.

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False

Which of the following is a pure, elemental substance?

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What is the name given to the element with the symbol "As"?

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What is the name given to the element with the symbol "K"?

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Match the substances with their classification. -Vitamin C

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Match the definition with its term -Formation of snow

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Match the element with its symbol. -Potassium

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The earth, taken together as a unit, may be considered one very large piece of heterogeneous matter.

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A compound is a pure substance made from atoms of two or more different elements.

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It is scientifically proper to construct a theory without then doing any experiments to test it.

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Match the substances with their classification. -sugar

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Which term best completes this definition? An attempt to explain why a law exists is a(n) ________.

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Match the element with its symbol. -Palladium

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Match the substances with their classification. -sand and salt

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Which of the following represents a physical change only?

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Match the definition with its term -Mothballs subliming

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Match the substances with their classification. -Diamond

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Match the definition with its term -Molding iron

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