Mg2 + 2HCI(aq) → MgCI2(g) + H\(_{...
Mg2 + 2HCI(aq) → MgCI2(g) + H2(g).
From the equation above what mass of hydrogen would be produced if 12.0 g of magnesium reacted completely with dilute hydrochloric acid? (H = 1, Mg = 24)
1.0g
2.0g
6.0g
12.0g
24.0g
Correct answer is A
Mg2 + 2HCI(aq) → MgCI2(g) + H2(g).
24g Mg reacts with 2g H
1g Mg = 224g H
12g Mg = 224×12g H
= 1g H.
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