Acids and Bases

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 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 happens to the pH of a solution when an acid is added?

Back

The pH of the solution decreases, making it more acidic.

Front

What happens to the pH of a solution when a base is added?

Back

The pH of the solution increases, making it more basic.

Front

What is the role of hydroxide ions (OH-) in a base?

Back

Hydroxide ions (OH-) are responsible for the basic properties of a solution, increasing its pH.

Front

What is a neutralization reaction?

Back

A neutralization reaction occurs when an acid reacts with a base to produce water and a salt.

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 feel slippery.

Front

What is an indicator?

Back

An indicator is a substance that changes color in response to the pH of a solution, helping to identify whether it is acidic or basic.