Mitochondrion (mitochondria)
What minerals do rocks have?
Do all rocks have minerals?
What is the hardest mineral?
If no subscript appears, one atom of that element is present.
Answer:
It increases the reaction rate by lowering the activation energy for a reaction.
Please see the picture below in order to easier to understand.
Explanation:
However, note that there are positive and negative catalyst. The question above is just about the positive catalyst.
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Hope this answer can help you.