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mollyann

  • 3 years ago

A substance that speeds up the rate of a chemical reaction is called A. a catalyst. B. a lipid. C. a molecule. D. an element.

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  1. InYourHead
    • 3 years ago
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    Do you have a guess?

  2. mollyann
    • 3 years ago
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    its a. i got a 90 on my test lol

  3. InYourHead
    • 3 years ago
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    Good job.

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