Final answer:
The balanced equation for the combustion of ethene in excess of oxygen is C2H4 + 3O2 -> 2CO2 + 2H2O.
Step-by-step explanation:
The balanced equation for the combustion of ethene (C2H4) in excess of oxygen (O2) is:
C2H4 + 3O2 → 2CO2 + 2H2O
In this reaction, ethene reacts with oxygen to produce carbon dioxide and water. The coefficients in the balanced equation represent the relative amounts of each substance involved in the reaction.