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11-11-2018
Chemistry

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Calculate the mass of magnesium oxide formed when 3.0 grams of magnesium reacts with excess oxygen.

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malika8888 malika8888

18-11-2018

Mg+O2=MgO
24 g. = 40 g
3 g. = x
[tex]x = \frac{3 \times 40}{24} \\ x = 5 \: g[/tex]

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