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2H2 g O2 g 2H2 O g In the reaction above what v... - JAMB Chemistry 2012 Question

2H2(g) + O2(g) → 2H2 O(g)
In the reaction above, what volume of hydrogen would be left over when 300 cm3 of oxygen and 1000 cm3 of hydrogen are exploded in a sealed tube?
A
200 cm3
B
400 cm3
C
600 cm3
D
700 cm3
correct option: b
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