I watched a Khan academy video on organic chemistry functional groups. It mentioned the amine and amide groups.
From what I see, an amide is an amine with a carbonyl group. However, the internet says that that assumption is wrong. I am guessing it has to do with the "R" groups on the amine functional group.
But in the video, he used an example of 2 ethyls (2 carbon chains, not sure what they are called) attached to the nitrogen, and the third R group is just a hydrogen. So what exactly is an R group, and are all amides also amines? Thanks in advance for the help.