Chemistry, asked by hsgmaipcom9692, 29 days ago

The reaction and equation for making water hard permanently

Answers

Answered by asharajendran35

Answer:

Permanent hardness is caused by dissolved calcium sulfate (CaSO 4), which does not decompose (break down) when heated. Therefore, unlike temporary hardness, permanent hardness is not removed by boiling the water.

Mg2+(aq) + 2C15H35COO–(aq) ==> (C15H35COO–)2Mg

Like calcium compounds, this ionic equations applies to ANY dissolved magnesium compound such as the sulfate or hydrogencarbonate.

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