An alcohol and a carboxylic acid salt (carboxylic acid if
protonated at end of reaction).
View page
Formic acid is methanoic acid. A carboxylic acid.
View page
A fatty acid salt is a kind of carboxylic acid salt. But not all
carboxylic acid salts are fatty acid salts.
View page
Vinegar is ethanoic acid CH3COOH, so yes it is a carboxylic
acid.
View page
the carboxylic group normally came from carboxylic acid. Hence,
the carboxylic acid is polar acid. and the polarity came from the
carboxylic group for that it is hydrophilic group