What is true of chemical equation? c3h+o2 h2o+co2

1) The first reactant is incomplete.

2) The reaction is a combustion reaction and it is easy to infere that it is the combustion of the alkane with 3 carbons.

3) The general chemical formula of the alkanes is

4) Hence the equation is:

5) The name of the alkane is propane, so the word equation is:

            propane + oxygen → carbon dioxide + water

6) The equation is unbalanced. This is the balanced equation:

7) It is, as the combustion of any hydrocarbon, a redox (reduction-oxidation) reaction, where the carbon is oxidized and the oxygen is reduced.

8) This kind of reactions release a lot of energy.

thinking it would be physical characteristics