write equation of removal of temporary hardness of water
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By Boiling:
Soluble bicarbonates are converted into insoluble carbonates which are removed by filtration.
Reactions: Ca(HCO3)2 → ΔCalo3↓ + H2O + CO2
⇒ Mg(HCO3)2 → ΔMgCO3↓ + H2O + CO2
By Clarks Method:
Calcium hydroxide is Clark’s reagent. It removes the hardness of water by converting bicarbonates into carbonate.
Reaction: Ca(OH)2 + Ca(HCO3)2 → 2CaCO3↓ + 2H2O
Explanation:
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