Acids & Bases

Front

What is an acid?

Back

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

Tags

NGSS.HS-PS1-1

Front

What is a base?

Back

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

Front

What is the pH scale?

Back

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

Front

What happens when an acid and a base react?

Back

When an acid and a base react, they undergo a neutralization reaction, 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 only some of its protons.

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, releasing only some of its hydroxide ions.

Front

What is the effect of acids on litmus paper?

Back

Acids turn blue litmus paper red.

Front

What is the effect of bases on litmus paper?

Back

Bases turn red litmus paper blue.