Question

what weigh of calcium oxide will be formed on heating 21.03gm of calcium carbonate
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Answer 1

Answer: CaCO3 burns to form Ca2O and CO2

RMM: Ca= 40, C= 12, O= 16

:. 40+12+16= 68

WEIGHT OF CALCIUM OXIDE

RMM: 40 multiply by 2+16

=96amu

Explanation:

The weight of a compound is simply the relative molecular mass of each particular element present in the compound added together.