Question

based on the following balanced chemical reaction equation, how many moles of oxygen gas will react with 1.0 mole of calcium?

Answer 1

0.50 moles of oxygen gas will react.

Balanced chemical eqation for reaction of calcium with oxygen:

2Ca + O₂ → 2CaO

n(Ca) = 1.0 mol; amount of calcium

From balanced chemical reaction, we can see that 2 moles of calcium reacts with one mole of oxygen gas. Ratio of moles is 2 : 1.

n(Ca) : n(O₂) = 2 : 1; ratio of the amount of substance of calcium and oxygen gas

n(O₂) = n(Ca) / 2; two times less amount of oxygen than calcium

n(O₂) = 1.0 mol / 2

n(O₂) = 0.5 mol; amount of oxygen gas needed for this chemical reaction.

More about stoichiometry: brainly.com/question/16060223

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