A(n) can be defined as a substance that prevents the ph of a solution from changing by either releasing or absorbing h+ in a solution

Explanation:

When an acid or base is added to a solution then any resistance by the solution in changing the pH of the solution is known as a buffer.

This is because a buffer has the ability to not get affected by the addition of small amounts of an acid or a base. As a result, it helps in maintaining the pH of the solution.

Thus, we can conclude that a buffer can be defined as a substance that prevents the pH of a solution from changing by either releasing or absorbing in a solution.

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