A. 4Na +O2 -> 2Na2O
B. 2Na +O2 -> Na2O
C. Na +102 -> Na2O
D. Na +O2 -> 2Na2O
which of the following represents the balanced chemical equation for the reaction involving sodium and oxygen?
2018-06-07 8:06 am
回答 (3)
2018-06-07 8:13 am
A. The equation is balanced as there are 4 Na and 2 O on the both sides.
B. The equation is not balanced as there are 2 O on the left but 1 O on the right.
C. The equation is not balanced as there are 1 Na and 2 O on the left but 2 Na and 1 O on the right.
D. The equation is not balanced as there are 1 Na on the left but 4 Na on the right.
The answer: A. 4Na + O₂ → 2Na₂O
B. The equation is not balanced as there are 2 O on the left but 1 O on the right.
C. The equation is not balanced as there are 1 Na and 2 O on the left but 2 Na and 1 O on the right.
D. The equation is not balanced as there are 1 Na on the left but 4 Na on the right.
The answer: A. 4Na + O₂ → 2Na₂O
2018-06-09 4:10 am
lol ms.karosas
2018-06-07 8:07 am
A
收錄日期: 2021-05-01 22:23:58
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