Magnesium combines with the oxygen in the ratio of 3:2 to form magnesium oxide. Find the amount pf magnesium oxidwill required when 7.5g of mg is burnt woth oxygene
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As the ratio is 3:2.
The amount of magnesium is 3x.
According to the question 3x=7.5
x=2.5
The amount of oxygen=2x=2*2.5=5
Total amount of magnesium oxide formed=5+7.5=12.5
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