Which of the following equations is balanced?

A. 2H2 + O2 → 4H2O
B. 4Na + O2 → 2Na2O
C. Fe2O3 + H2 → 2Fe + 3H2O
D. CH4 + O2 → CO2 + H2O


Answer :

Answer:

B. 4Na + O2 → 2Na2O

Explanation:

Got it right on the test :)

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