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Nataliya [291]
3 years ago
10

When the equation Fe + O2→Fe2O3 is balanced, the coefficient for O2 is:

Chemistry
2 answers:
leva [86]3 years ago
8 0
B.) Balanced equation is : 4Fe + 3O2 ---> 2Fe2O3. So coefficient for O2 is 3.
ollegr [7]3 years ago
7 0
The fully balanced equation would be 

4Fe + 3O2 --> 2Fe2O3

for each side, we have

4 Fe (4 iron)
6 Oxygen (O)

So the final answer is choice B) 3
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<h3>What are ionic compounds?</h3>

Ionic compounds are compounds which are formed between oppositely charged ions.

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