Acids and Bases

Front

What is an acid?

Back

An acid is a substance that donates hydrogen ions (H+) in a solution, typically having a sour taste and a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts hydrogen ions (H+) or donates hydroxide ions (OH-) in a solution, usually having a bitter taste and 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 is neutralization?

Back

Neutralization is a chemical reaction between an acid and a base that produces water and a salt.

Front

What is an example of a common acid?

Back

Common acids include hydrochloric acid (HCl), citric acid (found in citrus fruits), and acetic acid (found in vinegar).

Front

What is an example of a common base?

Back

Common bases include sodium hydroxide (NaOH), baking soda (sodium bicarbonate), and ammonia (NH3).

Front

What happens when an acid reacts with a metal?

Back

When an acid reacts with a metal, it typically produces hydrogen gas and a salt.

Front

What is the effect of increasing hydroxide ion concentration in a solution?

Back

Increasing hydroxide ion concentration makes the solution more basic, resulting in a higher pH.

Front

What is the taste of acids?

Back

Acids typically have a sour taste.

Front

What is the taste of bases?

Back

Bases typically have a bitter taste and can feel slippery.