Question

1. Calculate the amount of magnesium oxide formed when 48 g of magnesium burns completely in oxygen.

Answer 1

Explanation:

So, two molecules mean 2×24g i.e. 48g of magnesium will form 2×40g of magnesium oxide, which will be 80g of magnesium oxide. So, 1g Mg→8048g MgO i.e. 1.66g of MgO (Magnesium Oxide).