pH Scale Flashcard

Front

A substance with a pH less than 7 is called a(n) ______.

Back

Acid

Front

What is the only substance with a neutral pH of 7?

Back

Water

Front

Which type of substance tastes sour?

Back

Acids

Front

This substance releases OH^- into solution: ______.

Back

Base

Front

A substance with a pH greater than 7 is called a(n) ______.

Back

Base

Front

What does the pH scale measure?

Back

The acidity or alkalinity of a solution.

Front

What is the pH range for acids?

Back

0 to less than 7.

Front

What is the pH range for bases?

Back

Greater than 7 to 14.

Front

What is a buffer?

Back

A solution that resists changes in pH when small amounts of acid or base are added.

Front

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

Back

The pH decreases.