Write a balanced equation for the combustion of gaseous propane (C3H8), a minority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water. I answered C3H8 + 5O2 = 3CO2 + 4H2O but it was wrong, any idea why?

Answer 1

The error was: Incorrect; Try Again; 2 attempts remaining
Check that you have properly identified all of the phases in your answer.

Answer 2

So put (g) after each component in the equation.

Answer 3

You forgot to label

C3H8(g)+5O2(g)→3CO2(g)+4H2O(g)

Answer 4

I don't know why but the answer is C3H8(g)+5O2(g)--->3CO2(g)+4H2O(g)