chemistry 101

What is the coefficient for aluminum after the following equation is balanced: Al(s) + O2(g) --> Al2O3(s)

options:
2
4
1
3
0

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asked by ABCD
  1. What is your problem in balancing this equation? It looks simple enough to me. It's a simple trial and error (ALTHOUGH it can be done by redox methods).

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    posted by DrBob222

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