Name the following hydrocarbons.

A) CH3-CH2-CH-CH2-CH2-CH3
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CH3

I don't know if this will show up correctly after I post. But the CH3 at the bottom is supposed to be under the CH. I don`t get how to name. I counted up all the hydrocarbons, and I came up with C7H16, so I thought it would be heptane, but its not.

you count the longest chain so it will be the carbon chain of six. so hexane and then you have CH3 attached so it would be MethylHexane i believe.

oh then when you number your chain. CH is number 3. SO you would call the organic compound.....

3-MethylHexane

Yes, but no capital H.

3-methylhexane.

To properly name a hydrocarbon, you need to follow the rules of the IUPAC nomenclature, which provides a systematic way of naming organic compounds.

In this case, let's break down the given hydrocarbon:

A) CH3-CH2-CH-CH2-CH2-CH3
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CH3

The main carbon chain consists of six carbon atoms, so it's a hexane (hex- means six). The branches can be described as substituents. The branch coming off the fourth carbon atom consists of three carbon atoms, so it's a propyl group (prop- indicates three carbons). The branch coming off the second carbon atom contains only one carbon atom, so it's a methyl group (methyl indicates one carbon).

To name the compound, we put the branches in alphabetical order and give their positions on the main chain. The propyl group is located on the fourth carbon, and the methyl group is on the second carbon. So, the complete name for this hydrocarbon is 2-propylhexane.

Remember to always start numbering the carbon chain from the end that results in the lowest possible numbers for the substituents. In this case, even if we started numbering from the other end, we would still end up with the same names.

I hope this explanation helps you understand how to name hydrocarbons!