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Question
What information do the following chemical equations convey? Mg + 2HCl → MgCl2+ H2
Solution
This equation conveys the following information:
Magnesium reacts with hydrochloric acid to form magnesium chloride and hydrogen gas.
24 g of magnesium reacts with 2(1 + 35.5) = 73 g of hydrochloric acid to produce (24 + 71), i.e. 95 g of magnesium chloride.
Hydrogen produced at STP is 22.4 litres.
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