deyaalsalmi6732 deyaalsalmi6732

28-02-2024
Chemistry

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Write the chemical name and chemical formula of the salt used to remove permanent hardness of water:

a) Sodium carbonate, Na₂CO₃
b) Calcium hydroxide, Ca(OH)₂
c) Sodium chloride, NaCl
d) Calcium carbonate, CaCO₃

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