Write the names of four factors affecting the rate of a reaction.

Explanation

To answer the question regarding the four factors affecting the rate of a reaction, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Factors**: The rate of a chemical reaction can be influenced by several factors. We will identify four key factors that are commonly recognized in chemical kinetics.

2. **Factor 1: Concentration of Reactants**: The concentration of reactants is a crucial factor. Generally, an increase in the concentration of reactants leads to an increase in the rate of reaction because more reactant molecules are available to collide and react.

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