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25 March, 12:48

If 0.9 grams of calcium burnt in air the weight of product formed is?

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  1. 25 March, 15:32
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    Assume it only reacts with O2

    2Ca + O2 = 2CaO

    0.9g x g

    2 * 40 2 * (40+16)

    You get: x = 1.08g
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