What happens when chlorine reacts with phosphorus

Explanation

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this reaction are chlorine (Cl₂) and phosphorus (P₄). Phosphorus typically exists in a tetrahedral form as P₄.

2. **Determine the Conditions**: There are two scenarios to consider based on the amount of chlorine available:
- **Limited Chlorine**: When chlorine is in limited quantity.
- **Excess Chlorine**: When chlorine is in excess.

...