Answer:
Explanation:An acid is a substance that can donate a proton (H⁺ ion) to another substance or accept an electron pair. Acids typically have a sour taste, can turn blue litmus paper red, and have a pH less than 7 in aqueous solution.
A base, on the other hand, is a substance that can accept a proton (H⁺ ion) or donate an electron pair. Bases often have a bitter taste, feel slippery or soapy to the touch, turn red litmus paper blue, and have a pH greater than 7 in aqueous solution.