Bio Unit 2: Acids and Bases Flashcard BWHS

Front

What is the pH of pure water?

Back

7

Front

What does it mean if a substance has a pH of 7?

Back

It is a neutral substance.

Front

Which pH value indicates a stronger acid: pH 1, pH 4, pH 8, or pH 13?

Back

pH 1 is the stronger acid.

Front

What do acids produce when they react with metals?

Back

Hydrogen gas and salt.

Front

What ion is more present in a basic solution?

Back

OH- (hydroxide ion).

Front

What happens to the pH when more water is added to an acidic solution?

Back

The pH will increase and get closer to 7.

Front

What is an acid?

Back

A substance that donates protons (H+) in a solution.

Front

What is a base?

Back

A substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution.

Front

What is the pH range of acids?

Back

pH less than 7.

Front

What is the pH range of bases?

Back

pH greater than 7.