What results from burning hydrocarbons in a plentiful supply of oxygen?
Question
What results from burning hydrocarbons in a plentiful supply of oxygen?
Solution
When hydrocarbons are burned in a plentiful supply of oxygen, the result is typically the formation of carbon dioxide (CO2) and water (H2O). This process is known as combustion. Here are the steps:
- The hydrocarbon reacts with oxygen in the air.
- This reaction breaks the bonds in the hydrocarbon and forms new bonds, creating water and carbon dioxide.
- Energy is released in the form of heat and light, which is why burning hydrocarbons is an exothermic reaction.
This is the general reaction for complete combustion:
Hydrocarbon + Oxygen -> Carbon Dioxide + Water + Energy
For example, the combustion of methane (CH4), which is a common hydrocarbon, would look like this:
CH4 + 2O2 -> CO2 + 2H2O + Energy
Incomplete combustion (not enough oxygen) can produce carbon monoxide (CO) or even soot or carbon (C), which are harmful pollutants.
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