Question

Name the sodium compound which is used for softening hard water..

Answer 1

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Here's ur ans ⤵

Washing Soda (Na2CO3. 10H2O) is the sodium compound which is used for softening hard water .

Answer 2

Answer: Washing soda makes hard water soft.

Explanation:

Washing soda which has a chemical formula $Na_{2}CO_{3}.10H_{2}O$, chemically makes hard water soft.

This is because it binds with the calcium and magnesium molecules in water.

Thus, it reduces the hardness of water. Washing soda is also known as sodium carbonate.

Sodium carbonate is known for its ability as precipitating water softener.