Chem Unit Chp 1 Sect 1Vocab
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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| a quality of a substance that never changes and can be used to identify that substance | Characteristic Property
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| the temperature at which a substance changes from a liquid to a gas | boiling point
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| the temperature at which a substance changes from a solid to a liquid | melting point
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| a change in a substance that does NOT change its identity | physical change
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| a change in which one or more substances combine or break apart to form new substances | chemical change
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| this indicates a substance's ability to undergo a chemical change | chemical activity
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| two or more substances that are mixed together but not chemically combined | mixture
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| a well-mixed mixture that contains at least one liquid | solution
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| a substance made of only one type of matter and having definite properties | pure substance
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| a substance that cannot be broken down into other substances by chemical or physical means | element
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| a substance made of two or more elements that are chemically combined | compound
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| Which of the following IS NOT an example of a characteristic property? melting point, density, volume, chemical activity, hardness | Volume
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| Which of the following IS NOT a pure substance? water, air, gold, salt, iron | air
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| Which of the following IS NOT a mixture or a solution? soil, juice, air, soda, cake, sand, | cake
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| Which of the following IS NOT an element? gold, hydrogen, carbon dioxide, silver, iron | carbon dioxide
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| Which of the following IS NOT a compound? water, nitrogen, sugar, carbon dioxide, salt | nitrogen
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| When matter goes through phase change(or change in state),is that a physical change or chemical change? | physical change
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| True or False... Earth, air, fire and water are good examples of (chemical) elements. | FALSE!!!!
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| Which of the following classifications should include water: pure substance, mixture, element, compound | pure substance and compound
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| What are the characteristics of a mixture? | -Two or more pure substances blended together
-relatively easy to separate
-usually solids and gases
-not chemically combined
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| What are the characteristics of a solution? | -a very well-mixed mixture
-contains at least one liquid
-more difficult to separate
-not chemically combined
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| Are phase changes (solid to liquid or liquid to gas) physical or chemical changes? | physical changes
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| Did you study your chemistry classification chart? | If you said "yes"... GREAT!
If you said "no"... GO STUDY IT!
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