Question

what mass of calcium is required to react with 1gm of oxygen
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Answer 1

Explanation:

1/40

mark me Brilliant

Answer 2

Answer:

Thus the number of molecules in 16 gm or 0.5 mole of oxygen gas are 0.5 x 6.023 x 10^(23) = 3.012 x 10^(23) molecules.