CH3−CH2−CH2−O−CH2−CH2−CH2−CH2−CH3

Spell out the full name of the compound

The full name of the compound CH3-CH2-CH2-O-CH2-CH2-CH2-CH2-CH3 is 3-ethoxyoctane.

To spell out the full name of the compound CH3−CH2−CH2−O−CH2−CH2−CH2−CH2−CH3, we need to identify the functional groups and name each part accordingly.

First, let's break down the compound:

CH3−CH2−CH2−O−CH2−CH2−CH2−CH2−CH3

Starting from the left:

"CH3" is a methyl group (one carbon with three hydrogen atoms)
"CH2" is an ethyl group (two carbons with five hydrogen atoms)
"O" is an oxygen atom

Combining these functional groups, we can name the compound:
Ethyl methyl ether

So, the full name of the compound is Ethyl methyl ether.

isnt it a -O- an ether?

five C on one side, three C on the other

Pentyl-propyl-ether in the olden dark days, but now
1-Propoxypentane

And in the "older" olden days it was amyl-propyl-ether