Question

the atomic mass of calcium is 40 and the molecular mass of calcium carbonate is 100 what is the percentage of calcium in calcium carbonate

Answer 1

➡️40/100×100=40

➡️the percentage of calcium in calcium carbonate is 40%.

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Answer 2

HI THERE!!!

ANSWER:

MASS OF CALCIUM=40

MASS OF CALCIUM CARBONATE=100

PERCENTAGE OF CALCIUM IN CALCIUM CARBONATE=MASS   OF CALCIUM/MASS OF CALCIUM CARBONATE *100

% OF CALCIUM= 40/100*100

PERCENTAGE OF CALCIUM=40%