U6 Q1 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 is an acid?

Back

An acid is a substance that donates hydrogen ions (H⁺) in a solution.

Front

What is a base?

Back

A base is a substance that accepts hydrogen ions (H⁺) or releases hydroxide ions (OH^-) in a solution.

Front

What does a pH of 7 indicate?

Back

A pH of 7 indicates a neutral solution, meaning it is neither acidic nor basic.

Front

What is a strong acid?

Back

A strong acid is an acid that completely dissociates in water, releasing all of its hydrogen ions.

Front

What is a weak acid?

Back

A weak acid is an acid that partially dissociates in water, meaning not all of its hydrogen ions are released.

Front

What is a strong base?

Back

A strong base is a base that completely dissociates in water, releasing all of its hydroxide ions.

Front

What is a weak base?

Back

A weak base is a base that partially dissociates in water, meaning not all of its hydroxide ions are released.

Front

What happens to pH when an acid is added to water?

Back

The pH decreases, indicating an increase in acidity.

Front

What happens to pH when a base is added to water?

Back

The pH increases, indicating an increase in basicity.