# Why are some materials more flammable than others? [closed]

Wood and oil are flammable materials, but water isn't. Moreover, flames spread a lot faster in oil than in a piece of paper. What is the reason that it is so?

I also don't know why a small flame can spread out to a very big flame; what is the physical reason for it? I would like to know the molecular reasons in detail what makes fire so powerful.

## closed as too broad by andselisk♦, Ivan Neretin, Jan, Mithoron, TyberiusDec 13 '17 at 15:24

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

• Have you tried the wikipedia article on fire? You are asking a lot of questions, but at least some of them should be answered there – Raditz_35 Dec 13 '17 at 12:49

$$\ce{C_nH_{n+2}(g,s,l) +\frac{3n +1}{2}O_2(g)-> nCO_2(g) +\frac{n +2}{2}H_2O(l)}$$