the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7)

having characteristics of both an acid and a base and capable of reacting as either

pH values above 7

the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

tending to become alkaline; slightly alkaline

of or denoting or of the nature of or containing a base

yielding a base in aqueous solution

resembling a compound formed by replacing hydrogen in an acid by a metal