Question

multiple choice question which one of these is defined as a chemical or combination of chemicals that helps to resist changes in ph? acids buffer salts bases

Explanation:

Buffers are chemicals or combinations of chemicals that resist changes in pH by accepting or donating hydrogen ions. Acids release hydrogen ions and lower pH, bases accept hydrogen ions and raise pH, and salts are the products of acid - base reactions and do not primarily function to resist pH changes like buffers.

Answer:

B. Buffer