Acids and Bases

Front

What happens to blue litmus paper when it comes into contact with an acid?

Back

It turns red.

Front

What is the result of combining an acid with a base of equal strength?

Back

A neutral solution.

Front

What does the pH scale measure?

Back

The concentration of hydrogen ions.

Front

What type of substance tastes bitter?

Back

Base.

Front

Which pH value represents an acid?

Back

4.

Front

What is an acid?

Back

A substance that donates hydrogen ions (H+) in a solution.

Front

What is a base?

Back

A substance that accepts hydrogen ions (H+) or donates hydroxide ions (OH-) in a solution.

Front

What is the pH range for acids?

Back

0 to 6.9.

Front

What is the pH range for bases?

Back

7.1 to 14.

Front

What is a neutral solution?

Back

A solution with a pH of 7.