Acids and Bases

Which of these pH values represent an acid?

• 4

• 8

• 10

• 12

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

When an acid is dissolved in water, it turns red litmus paper blue.

• True

• False

Tags

NGSS.MS-PS1-2

Which of the following is an acid?

• vinegar

• bleach

• sugar in water

• starch in water

• toothpaste in water

All bases have a sour taste.

• True

• False

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

If the substance is neutral, what would the pH be?11

• 3

• 5

• 7

• 9

• 11

Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.

• Acids; pH less than 7
• Acids; pH greater than 7
• Bases; pH greater than 7
• Bases; pH less than 7

Tags

CCSS.RI.9-10.4

CCSS.RI.9-10.4

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

Turns litmus red

• Acids
• Bases
• All