Question

write calgon's method

Answer 1

Answer:

Explanation:Calgon ionizes to give a complex anion:The addition of Calgon to hard water causes the calcium and magnesium ions of hard water to displace sodium ions from the anion of Calgon. This results in the removal of calcium and magnesium ions from hard water in the form of a complex with Calgon

Answer 2

Answer:

sodium hexametaphosphate commercially called clagon when added to hard water the following reaction take place

$Na_6P_6O_18→2Na^++Na_4P_6O_18²^-$