Acids 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 is an acid?

Back

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

Front

What happens when an acid reacts with a metal?

Back

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

Front

What is the pH of strong acids?

Back

Strong acids typically have pH values close to 0.

Front

What is the pH of strong bases?

Back

Strong bases typically have pH values close to 14.

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) and sulfuric acid (H2SO4).

Front

What is an example of a common base?

Back

Common bases include sodium hydroxide (NaOH) and baking soda (sodium bicarbonate, NaHCO3).

Front

What is the role of indicators in acid-base chemistry?

Back

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