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Definition
| anything that has mass and takes up space |
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Definition
| study of matter and how it changes |
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Definition
| characteristic of a substance that can be observed without changing substance |
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Definition
| characteristic described by its ability to change |
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| change that alters the form but doesn't change the substance |
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Definition
| change in matter that produces one or more new substances |
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Definition
| solid that forms from a solution |
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Definition
| reaction that absorbs energy |
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Definition
| reaction that releases energy |
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Definition
| easy way to show a chemical reaction, with symbols |
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Term
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Definition
| substances before a chemical reaction |
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Definition
| the results of the chemical reaction |
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Definition
| during a chemical reaction, matter is not made or destroyed |
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Definition
| matter can't enter or leave |
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Definition
| matter can enter or escape to its surroundings |
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Definition
| number placed in front of a chemical formula |
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Definition
| two or more elements that combine to make a more complex substance |
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| breaks down compounds into simpler substances |
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| when one element replaces another, or when two elements switch places in a compound |
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Definition
| minimum amount of energy needed to start a chemical reaction |
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Definition
| amount of substance in a given volume |
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Definition
| material that increases the rate of reaction by lowering activation energy |
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Definition
| biological catalysts in cells |
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Definition
| material used to decrease the rate of reaction |
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Definition
| rapid reaction between oxygen and a fuel |
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Definition
| material that releases energy when burned |
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