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What weight of magnesia is obtained by c...

What weight of magnesia is obtained by complete combustion of two grams of metal?

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The balanced equation for the combustion of magnesium metal is `2Mg+O_(2) to 2MgO`
2 moles of Mg =2 moles of MgO
1 mole of Mg =1 mole of MgO
24 grams of Mg =40 grams of MgO
The weight of magneisa (MgO) produced by burning 2 grams of metal `=(40)/(24) xx 2=3.333gr`
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