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Question
According to the following balanced chemical equation, if you want to generate two moles of H2O, how many molecules of O2 do you need?
2 H2 + O2 -> 2 H2O
A) 1
B) 2
C) 1/2
D) 4
E) 6.022 
1023
Answer
This answer is hidden. It contains 1 characters.
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