2 Answers
You want the # of atoms on each side to be equal.
I would first start with guessing that there is 1 NH3,
therefore there must be 1 HCN.
1 C on left side means that there must be
1 CH4 (only source of C on right side),
This means there are 7 H’s on the left.
1 NH3 = 3 H
1 CH4 = 4 H
we have 1 on the right (from HCN)
so that means there are 6 more in
H20 (the only other source of H on the right side)
That means 3 H20.
Now we have 3 0’s on the right,
3 H20 = 3 0
we need 3 0’s on the left.
Since 0 only comes in 02,
we should multply all of our previous guesses by 2,
(in order to have 6 0’s on the right, 3 02 = 6 0
so we have:
2 NH3 + x 02 + 2 CH4 = 2 HCN + 6 H20
now we see that we need 6 0’s on the left, or 3 02’s
2 NH3 + 3 02 + 2 CH4 = 2 HCN + 6 H20
Check your answer by making sure there are an equal number of each atom on each side.
Ch4 Nh3