Acids and Bases

Which of these pH values represent an acid?

• 4

• 8

• 10

• 12

If I add more water to this setup, what will happen to the pH?

• It will increase and get closer to 7

• It will decrease and get closert to 0

• It will stay the same and not change

Tags

NGSS.MS-PS1-2

Milk is a very weak acid. What might its pH value be?

• 6.5

• 7.8

• 4.2

• 12.2

Tags

NGSS.MS-PS1-2

Which of the following is an acid?

• vinegar

• bleach

• sugar in water

• starch in water

• toothpaste in water

Which of the following is a property of a base?

• bitter taste

• reacts with metals

• salty

• sour taste

Which of the following pH values represents a base?

• 2.1

• 4.6

• 6.8

• 8.1

The strongest bases have pH values close to

• 0

• 14

• 7

• 5

Which of the following is a base?

• baking soda in water

• orange juice

• vinegar

• lemonade

HF is...

• an acid

• a base

• a salt

• an ionic compound

Tags

NGSS.HS-PS1-2

HNO₂

• a base

• a salt

• an acid

• an ionic compound