Chemistry, asked by killerynd, 7 hours ago

Which of the following cause permanent hardness in water, 1. CaCl2 il. Ca(HCO3)2 TIL Na2SO4 lv. All of above

Answers

Answered by dvchopada

1

Answer:

Na2So4

Explanation:

cause permanent hardness in water which cannot be removed by boiling.

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Answered by hs9273799

1

Answer:

cause parmenet i think that it would be correct

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