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AngercongAlexisman AngercongAlexisman
  • 06-01-2017
  • Chemistry
Answered

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

A4
B3
C1
D2 D?

Verified Answer :

jimthompson5910 jimthompson5910
  • 06-01-2017

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

Answer Link
AbhiGhost
AbhiGhost AbhiGhost
  • 06-01-2017

b.) Balanced equation is : 4Fe + 3O2 ---> 2Fe2O3. So coefficient for O2 is 3.

Answer Link

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