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| process that produces chemical change, resulting in new substances that have properties different from those of the original substances |
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| substance that exists before a chemical reaction begins |
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| substance that forms as a result of a chemical reaction |
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| short hand form for writing what reactants are used and what products are formed in a chemical reaction |
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| chemical reaction in which heat energy is absorbed |
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| chemical reaction in which heat energy is released |
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| minimum amount of energy needed to start a chemical reaction |
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| measure of heow fast a chemical reaction occurs |
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| describes how much solute is present in a solution compared to the amount of solvent |
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| substance that slows down a chemical reaction, making the formation of a certain amount of product take longer |
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| substance that speeds up a chemicl reaction but is not used up intself or permanently changed |
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| catalysts that are large protein molecules which speed up reactions needed for your cells to work properly |
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