Acids and Bases

Front

What happens when acids react with metals?

Back

They produce hydrogen gas and salt.

Front

Do all bases have a sour taste?

Back

No, that statement is false.

Front

What is the pH value of ocean water?

Back

Ocean water is slightly basic with a pH value of around 8.

Front

What is the pH value of milk?

Back

Milk is a very weak acid with a pH value of about 6.5.

Front

What is the pH value of a neutral substance?

Back

The pH value of a neutral substance is 7.

Front

What are acids?

Back

Acids are substances that donate protons (H+) in a solution and have a pH less than 7.

Front

What are bases?

Back

Bases are substances that accept protons (H+) or donate hydroxide ions (OH-) in a solution and have 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 is an example of a strong acid?

Back

Hydrochloric acid (HCl) is an example of a strong acid.

Front

What is an example of a strong base?

Back

Sodium hydroxide (NaOH) is an example of a strong base.