30cm 3 pf hydrogen at s.t.p combine with 20cm 3 of oxygen to form steam...
CHEMISTRY
WAEC 1999
30cm3 pf hydrogen at s.t.p combine with 20cm3of oxygen to form steam according to the following equation 2H2(g) + O2(g) → 2H2O(g). Calculate the total volume of the gaseous mixture at the end of the reaction
- A. 50cm3
- B. 35cm3
- C. 30cm3
- D. 25cm3
Correct Answer: B. 35cm3
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