What are the coefficients to balance the equation below? C2H4 + 02 -> H2O + CO2
2, 2, 1, 2
1, 5, 4, 3
2, 1, 4,1
O 1,2,1,2

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

c is the answer because when something is left after something evaporates that shows the chemical change.

i do not get it   at all