Acid and Bases

Front

What is the pH scale?

Back

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

Front

What pH value indicates a neutral solution?

Back

A pH value of 7 indicates a neutral solution.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What happens when an acid reacts with a base?

Back

When an acid reacts with a base, they neutralize each other, producing water and a salt.

Tags

NGSS.MS-PS1-5

Front

What is a strong acid?

Back

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

Front

What is a weak acid?

Back

A weak acid is an acid that partially dissociates in water, releasing some but not all of its protons.

Front

What is the pH of a strong acid?

Back

The pH of a strong acid is typically less than 3.

Front

What is the pH of a strong base?

Back

The pH of a strong base is typically greater than 11.

Front

What is a salt?

Back

A salt is a compound formed from the reaction of an acid and a base, consisting of cations from the base and anions from the acid.

Tags

NGSS.HS-PS1-3