Yes.
Acids and bases are frequently corrosive and toxic.
because we need it
Yes, concentrated acids and bases are more corrosive than dilute acids and bases
bases neutralise the acids
Of course they are. They are many acids and bases
To make 3 amino acids, you would need at least 9 bases. This is because each amino acid is encoded by a sequence of 3 bases called a codon. So, 3 amino acids would require 3 codons, which would be 9 bases in total.
They don't dissolve (or more properly, dissociate) completely in water, only partially. Acids or bases that dissociate completely are called strong acids or bases.
Of course they are. They are many acids and bases
acids and bases are important!
Acids taste bitter.
They either have a high concentration of H+ ions (acids) or OH- ions (bases). Strong acids and bases are also highly corrosive relative to weaker more neutral acids/bases.
Acids have a lower PH and bases have a higher PH.