Combustion Analysis

Now before we tackle this combustion analysis question, it's important for us to identify what exactly is a typical combustion reaction. We're going to say under a combustion reaction, a compound made up of carbon and hydrogen or carbon, hydrogen, and oxygen will react with oxygen gas. Remember, oxygen is a diatomic molecule so it's O2. The product's form would be water and carbon dioxide. So this is your typical combustion reaction.
Now good examples of this we could have CH4 reacting with O2 and we know that the products are going to be water and CO2. All we're going to do here is balance it and there goes our first example of a combustion reaction.
Now CH4 only has carbon and hydrogens. Let's look at one that has carbon, hydrogen, and oxygen that reacts with O2. A good example of this would be glucose, a simple sugar that we use for energy every day. Glucose reacts with atmospheric oxygen, O2, and it too will form water and carbon dioxide, and we balance it.
So these are our two examples of combustion.