What are Alkenes? Define Saturated and Unsaturated Compounds.

What are Alkenes? 

Define Saturated and Unsaturated Compounds.

Alkenes:

Alkenes are defined as either branched or unbranched hydrocarbons that possess at least one carbon–carbon double bond.

Ethene belongs to a family of hydrocarbons called the alkenes.

Their names start off like the alkanes, but end in -ene instead of -ane.

Remember the alkanes have only single bonds joining their atoms together. 

The alkenes have at least one double bond between carbon atoms.

The general formula for the alkenes is 

CnH2n.

Define Saturated and Unsaturated Compounds.

Saturated compound: 

saturated compound In organic chemistry, compounds in which carbon atoms bond to one another by single covalent bonds only.

Unsaturated compound:

Unsaturated hydrocarbons are hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms.

Ethene and the other alkenes are called unsaturated compounds. 

They have one or more double bonds between carbon atoms in their molecules.

On the other hand, the alkanes are said to be saturated. They contain only single bonds.