Properties of Acids and Bases

Front

What is the pH scale?

Back

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

Front

What are acids?

Back

Acids are substances that donate hydrogen ions (H+) in a solution, typically having a sour taste and a pH less than 7.

Front

What are bases?

Back

Bases are substances that accept hydrogen ions (H+) or donate hydroxide ions (OH-) in a solution, usually having a bitter taste and a pH greater than 7.

Front

What is a characteristic taste of acids?

Back

Acids typically have a sour taste.

Front

What is a characteristic taste of bases?

Back

Bases typically have a bitter taste.

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.

Front

What is a common example of an acid?

Back

Lemon juice is a common example of an acid.

Front

What is a common example of a base?

Back

Baking soda is a common example of a base.

Front

What is the relationship between pH and hydrogen ions?

Back

A lower pH indicates a higher concentration of hydrogen ions (H+), making the solution more acidic.