Question

If the formula of chloride of an element M is MCI2
what is the formula of its carbonate?
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Answer 1

Answer:

Given

Element M

Formula of its chloride = MCl2

hence as we know hat chloride has valency 1

then Element M has valency of 2

hence

formula of its carbonate =

MCO3

Answer 2

the formula of the element M in carbonate is MCo^2