Chemistry > 2019 > 6
WASSCE
If 6.5g of magnesium ribbon reacts completely with hydrochloric acid, how many grams of hydrogen gas would be liberated?
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
[H = 1.0, Mg = 24.0]
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
[H = 1.0, Mg = 24.0]
A.
0.54g
B.
0.70g
C.
1.08g
D.
1.40g
Answer: A
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