The boiling point of water _______ due to the presence of dissolved impurities. [increases/decreases]

Explanation

To answer the question, "The boiling point of water _______ due to the presence of dissolved impurities," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Boiling Point**: The boiling point of a substance is the temperature at which it changes from a liquid to a gas. For pure water, this is typically 100 degrees Celsius at standard atmospheric pressure.

2. **Effect of Impurities**: When impurities are dissolved in water, they interfere with the ability of water molecules to escape into the vapor phase. This is because the impurities take up space and reduce the number of water molecules that can vaporize.

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