Question

1. even a slight change in ph can be harmful! how do buffers moderate ph change?

Explanation:

Buffers contain a weak acid - conjugate base or weak base - conjugate acid pair. When an acid is added, the conjugate base reacts with it, and when a base is added, the weak acid reacts with it, thus resisting pH changes.

Answer:

Buffers contain a weak - acid/conjugate - base or weak - base/conjugate - acid pair. They react with added acids or bases to resist pH changes.