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Provide an example of an alkane and an alkene.

An example of an alkane is methane, while an example of an alkene is ethene.

Alkanes are hydrocarbons that contain only single bonds between carbon atoms. Methane is the simplest alkane, with one carbon atom and four hydrogen atoms. It is a colourless, odourless gas that is the main component of natural gas. Alkanes are generally unreactive due to the strength of the carbon-carbon and carbon-hydrogen bonds.

Alkenes are hydrocarbons that contain at least one double bond between carbon atoms. Ethene, also known as ethylene, is the simplest alkene, with two carbon atoms and four hydrogen atoms. It is a colourless gas that is used in the production of plastics, solvents, and other chemicals. Alkenes are more reactive than alkanes due to the presence of the double bond, which can undergo addition reactions with other molecules.

In summary, methane is an example of an alkane, while ethene is an example of an alkene. Alkanes contain only single bonds between carbon atoms and are generally unreactive, while alkenes contain at least one double bond between carbon atoms and are more reactive.

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