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2 votes
A molecule that speed up a reaction

2 Answers

5 votes

Answer:

Enzymes

Step-by-step explanation:

enzymes are catalyst and protein molecules that accelerate chemical reactions

User J V
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0 votes

Answer:

I think it's a catalyst.

Step-by-step explanation:

Definition: a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change

User Daan Pape
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