6. MOH is the formula of hydroxide of metal M. What is the formulae of its sulphate and chloride?
7. What is hard water?
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6. MOH is the formula of hydroxide of metal M. What is the formulae of its sulphate and chloride?
7. What is hard water?
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Answer:
M2SO4, MCl
hard water is a water which do not form scum with soap