Can You Identify Alkanes, Alkenes, Alkynes And Distinguish The Differences Of Each. Name & Give The Structural Formula For Each?

First of all, alkanes, alkenes and alkynes are all hydrocarbon molecules which means they only contain carbon and hydrogen atoms.

Alkanes is a molecule that only contains single bonding between the carbon and hydrogen atoms. This is a saturated molecule as it needs the most hydrogen because only single bonds are evident.
Eg. Methane, ethane, propane etc. *NB: They all end in 'an'
The formula for identifying Alkanes is: C(no. Of carbons)H(2 times no. Of carbons +2)

Alkenes are hydrocarbon molecules that contains at least ONE double bond. This is an unsaturated molecule because it uses LESS hydrogen atoms due to the fact that it is a double bond and there are less carbon electrons for bonding.
Eg. Ethene, propene, butene etc.
The formula for identifying an Alkane molecule is: C (no. Of carbon atoms )H (2 x no. Of carbon atoms.)

Alkynes is the hydrocarbon atom that contains at least ONE triple bond. This is also an unsaturated molecule.
The formula for identifying an Alkane molecule is: C(no. Of carbon atoms) H(2 x no. Of carbon atoms +2)

hope this helps, I can't really draw up the structural formula for these but basically single bonds just means that each carbon will need to link to 4 more hydrogen atoms UNLESS they're linked to another carbon. And double bonding means that carbon atoms will need to bond with 2 electrons at once so only 2 other valence electrons is available; only 2 hydrogen atoms are needed.

Good luck!

Alkanes, alkenes and alkynes are the three types of hydrocarbons. Alkanes are the saturated hydrocarbons while alkene and alkyne are two types of unsaturated hydrocarbons. There are different functions of different categories of alkanes, alkenes and alkynes. For example, methane is a type of alkane and there are various functions of alkanes. Firstly, methane is used as an illuminate. It is used as domestic and industrial fuel in the form of natural gas. Methane is also used in the preparation of carbon black. Example of alkene is ethene which is widely used in ripening of fruits, stimulating the growth of potatoes and it is used in the manufacturing of ethanol. Example of alkyne is Ethyne and it is used as an illuminate, as an anesthetic and in manufacturing synthetic rubber. Moreover, there are various other functions of alkanes, alkenes and alkynes.

CnH2n+2

Formula of alkenes