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WAEC - Chemistry (1997 - No. 21)
How much heat will be liberated if 8g of hydrogen burns in excess oxygen according to the following equation? 2H
2
+ O
2
→ 2H
2
O,∆H = -571.7KJ (H = 1)
1.42.9KJ
571.7KJ
1143.4KJ
285.9KJ
2286.8KJ
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