Catalyst makes a reaction more exothermic.

Explanation

### Step-by-Step Solution:

1. **Understanding the Statement**: The statement claims that a catalyst makes a reaction more exothermic. To analyze this, we first need to understand what a catalyst does in a chemical reaction.

2. **Definition of a Catalyst**: A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It does this by providing an alternative pathway for the reaction with a lower activation energy.

3. **Effect on Reaction Rate**: The catalyst speeds up both the forward and backward reactions equally. This means that it helps the system reach equilibrium faster but does not change the position of the equilibrium.

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