Asked by help pls

The following chemical equation shows the incomplete formula for burning methanol. The question mark represents the unknown number of oxygen (O2) molecules. How many molecules of O2 are needed to balance this chemical equation?

2CH₃OH + ?O₂ > 2CO₂ + 4H₂O

A. 1
B. 3
C. 5
D. 6

Please Help!!
Answered by R_scott
count the O atoms on both sides of the reaction
... then add what you need to balance

2 from methanol , 4 from carbon dioxide , 4 from water

how many MOLECULES to balance? ... 2 atoms per molecule
Answered by help
so 3?
Answered by R_scott
yup
Answered by help
thank you
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