the combustion of propane produces carbon dioxide and steam C3H8(g)+5O2(g) 3CO2(g)+4H2O(g)

2 answers

The combustion of propane produces carbon dioxide and steam C3H8(g)+5O2(g) 3CO2(g) +4H2O(g) all of the following statements concerning this reaction are correct except:
three molecule of carbon dioxide are formed per one molecule of propane consumed.
five molecules of oxygen are consumed per one molecule of propane consumed.
four moles of steam are formed per five moles of oxygen consumed.
the combined mass of reactants consumed equals the mass of products formed.
three grams of carbon dioxide are formed per five grams of oxygen consumed.
What problems are you having with this. It looks straight forward to me.