What is the balanced equation for combustions of propane gas that yields carbon dioxide and water?
A combustion reaction is a reaction between a hydrocarbon burned in oxygen to form carbon dioxide and water.
A hydrocarbon is a molecule composed of carbon and hydrogen in this case propane. The pro- prefix tells us we have 3 carbon.
For hydrocarbons that end in the suffix -ane the formula is
Now we can format the basic reaction.
A reminder that oxygen is a diatomic molecule as a gas,
Begin by balancing the hydrogen by adding a coefficient of 4 in from of the water.
This balances the hydrogen at 8. Now add a a coefficient of 3 in from of the carbon dioxide.
This balances the carbon at 3. We now have 10 oxygen on the on the product side, 6 from
The combustion reaction is now balanced.
I hope this was helpful.