Hey everyone,(adsbygoogle = window.adsbygoogle || []).push({});

I was wondering if someone could help explain to me how you get these chemical equations?

Propane:C3H8 + 5O2 --> 3CO2 + 4H2O + energy (heat)

Corrosion(rust): 4Fe + 3O2 --> 2FeO3

How does 4 molecules of iron and 3 molecules of oxygen form 2 molecules of iron oxide? How does this work out? (I hope this question makes sense to you guys)

Lastly, how do you get chemical equations in general?

Thanks in advance :)

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# Homework Help: Chemical equations of Propane

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