Acids, Bases & pH

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 does a pH of 7 indicate?

Back

A pH of 7 indicates a neutral solution, meaning it has an equal concentration of H+ and OH- ions.

Front

What are acids?

Back

Acids are substances that have a pH below 7, taste sour, and can react with metals.

Front

What are bases?

Back

Bases are substances that have a pH above 7, taste bitter, and feel slippery.

Front

What is a common property of acids?

Back

A common property of acids is that they taste sour.

Front

What is a common property of bases?

Back

A common property of bases is that they taste bitter.

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 role of water in the pH scale?

Back

Water is neutral and has a pH of 7 because it contains equal amounts of H+ and OH- ions.

Front

What is another name for a base?

Back

Another name for a base is alkaline.

Front

What is the effect of adding an acid to a solution?

Back

Adding an acid to a solution decreases the pH, making it more acidic.