Acids and Bases

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a substance is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What pH value indicates a strong base?

Back

A strong base has a pH value close to 14.

Front

What pH value indicates a neutral substance?

Back

A neutral substance has a pH value of 7.

Front

What pH value indicates an acid?

Back

A pH value less than 7 indicates an acid.

Front

What pH value indicates a base?

Back

A pH value greater than 7 indicates a base.

Front

What is an example of a common acid?

Back

Common acids include vinegar (acetic acid) and lemon juice (citric acid).

Front

What is an example of a common base?

Back

Common bases include baking soda (sodium bicarbonate) and soap.

Front

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

Back

The pH of the solution decreases, becoming more acidic.

Front

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

Back

The pH of the solution increases, becoming more basic.

Front

What is the role of indicators in acid-base chemistry?

Back

Indicators are substances that change color in response to the pH of a solution, helping to identify whether it is acidic or basic.