Question

hard water gets softe on mixing with a solution of washing soda​

Answer 1

Answer:

Hard water can be softened by adding washing soda (sodium carbonate) which removes the calcium ions in a precipitation reaction. Alternatively, the hard water can be passed through an ion-exchange resin in a column. Sodium ions replace the calcium ions in the water as it passes through the column.

Answer 2

Answer:

ya

Explanation:

because when we mix washing soda in hard water there properties become change and water became soften