Front

What are bases?

Back

Substances that have more OH– ions than H+ ions.

Front

What is the pH scale?

Back

A scale that measures how acidic or basic a solution is, ranging from 0 (acidic) to 14 (basic).

Front

What is a strong acid?

Back

An acid that completely dissociates in water, releasing all of its H+ ions.

Front

What is a weak acid?

Back

An acid that partially dissociates in water, releasing some but not all of its H+ ions.

Front

What is a strong base?

Back

A base that completely dissociates in water, releasing all of its OH– ions.

Front

What is a weak base?

Back

A base that partially dissociates in water, releasing some but not all of its OH– ions.

Front

What is a neutral solution?

Back

A solution where the concentration of H+ ions equals the concentration of OH– ions, resulting in a pH of 7.

Front

What is the strongest acid among common substances?

Back

Lemon juice, with a pH of 2.5.

Front

What is the weakest base among common substances?

Back

Blood, with a pH of 7.4.

Front

What happens to pH when an acid is added to a neutral solution?

Back

The pH decreases, making the solution more acidic.