Question
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!!
2CH₃OH + ?O₂ > 2CO₂ + 4H₂O
A. 1
B. 3
C. 5
D. 6
Please Help!!
Answers
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
... 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
so 3?
yup
thank you
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