What is produced when alkenes are completely combusted?

When alkenes are completely combusted, the products formed are carbon dioxide and water. This process occurs when alkenes react with oxygen in the presence of sufficient heat, leading to a complete oxidation reaction.

In this complete combustion, the carbon atoms in the alkene compound react with oxygen to form carbon dioxide, while the hydrogen atoms combine with oxygen to form water. The balanced chemical equation for the complete combustion of an alkene can be represented as follows:

C_nH_(2n) + O_2 → CO_2 + H_2O

This reaction is exothermic, meaning it releases energy in the form of heat and light, which is why it is often utilized as a source of energy.

The other options indicate the production of carbon monoxide or solely water, which occur during incomplete combustion when there is insufficient oxygen. Incomplete combustion typically leads to the formation of carbon monoxide, a less desirable and hazardous product compared to carbon dioxide, along with water. However, in the case of complete combustion of alkenes, carbon dioxide and water are the expected products.