Question

multiple choice question
solution a prevents solution c from changing its ph. solution a is therefore a what?
o buffer
o colloid
o suspension
o base

Explanation:

A buffer is a solution that resists changes in pH when small amounts of an acid or a base are added. Since Solution A prevents Solution C from changing its pH, it fits the definition of a buffer. Colloids are mixtures with dispersed particles, suspensions have larger - sized particles that settle over time, and a base is a substance that can accept protons or release hydroxide ions, none of which directly relate to pH - resistance like a buffer does.

Answer:

A. Buffer