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____CH3OH(I) + _____O2(g) --> _____CO2(g) + _____H2O(g)

What set of coefficients correctly balances this equation?
  1. 2, 3, 2, 1
  2. 1, 2, 2, 1
  3. 2, 3, 4, 2
  4. 2, 3, 3, 4
  5. 2, 3, 2, 4
Explanation
Answer: 2, 3, 2, 4

Use the law of conservation of mass to balance this equation by inspection. The correct coefficients are 2, 3, 2, 4.
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