Terms 1-11
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| characteristic property | a quality of a substance that never changes and can be used to identify the substance
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| boiling point | the temperature at which a substance changes from a liquid to a gas
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| melting point | the temperature at which a substance changes from a solid to a liquid
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| physical change | a change in substance that only involves a change of state, and not a change in identity
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| chemical change | a change in which one or more substances combine or break apart to form new substances with new properties
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| chemical activity | the characteristic property of a substance that indicates its ability to undergo a specific chemical change
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| mixture | two or more substances that are physically mixed together but do not chemically combine
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| solution | a very well-mixed mixture, usually a liquid and usually transparent (i.e. salt water)
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| pure substance | a substance made of only one kind matter and having definite properties, such as elements or compounds
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| element | a substance that can't be broken down into other substances by chemical or physical means
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| compound | a substance made up of two or more elements which are chemically combined
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