Water acts as a/an _____when it reacs with ammonia.

Explanation

To solve the question "Water acts as a/an _____ when it reacts with ammonia," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**: The two reactants in this case are water (H₂O) and ammonia (NH₃).

2. **Understand the Nature of Ammonia**: Ammonia (NH₃) is known to act as a base. In the context of acid-base reactions, bases are substances that can accept protons (H⁺ ions).

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