U8 Acids and Bases - Zeph

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 an acidic substance?

Back

A pH value less than 7 indicates an acidic substance.

Front

What pH value indicates a basic substance?

Back

A pH value greater than 7 indicates a basic substance.

Front

What happens to litmus paper when it is dipped in an acidic solution?

Back

Litmus paper turns red when dipped in an acidic solution.

Front

What happens to litmus paper when it is dipped in a basic solution?

Back

Litmus paper turns blue when dipped in a basic solution.

Front

What are indicators in chemistry?

Back

Indicators are substances that change color in response to changes in pH, helping to determine whether a solution is acidic or basic.

Front

What is the significance of a pH of 7?

Back

A pH of 7 is considered neutral, meaning the solution is neither acidic nor basic.

Front

What is an example of a common acidic substance?

Back

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

Front

What is an example of a common basic substance?

Back

Common basic substances include baking soda (sodium bicarbonate) and soap.

Front

How can you measure the pH of a solution?

Back

You can measure the pH of a solution using pH indicators like litmus paper or pH meters.