3 years ago

2H2 + O2 ---> 2H2O

1 answer:

7 0

2 H2 + O2 ----------- 2 H2O

2 mol H2 ----------- 1 mol O2
27.4 mol H2- ------ x mol O2

2x = 27.4

x = 27.4 / 2

x = 13.7 moles O2

answer b

hope this helps!.

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