Chemical Properties of Acids

An unknown compound has a pH of 3. This substance is ___.

• an acid

• a salt

• a base

• a hydroxide

Lemon juice tastes sour and has pH of 2, so it is ____.

• an acid

• a base

• a salt

• a neutral

A substance has a pH of 4. This should be classified as ___.

• an acid

• a base

• a reactive matter

• an inorganic compound

A salt is formed when you ___.

• mix an acid and a base

• mix an acid with neutral water

• mix a base with neutral water

• reach the freezing point of a solution

Tags

NGSS.MS-PS1-5

Which number indicates an acidic solution?

• 3

• 7

• 9

• 12

Which of the following statements is true concerning acids and bases?

• An acid mixed with a base neutralizes the solution

• Acids and bases do not react

• An acid mixed with a base makes the acid stronger

• An acid mixed with a base makes the base stronger

Tags

NGSS.MS-PS1-2

Milk is a weak acid. Which of the following could be the pH of milk?

• 6

• 8

• 7

• 10

A solution that reacts with acids to form a neutral pH is a/an ___.

• base

• acid

• neutral

• detergent

What process results in the formation of a salt?

• when an acid reacts with a base

• when two acids combine

• when a base combines with water

• when an acid. combines with water

Metal oxides which show both the properties of acids and base are called

• Amphoteric oxides

• Metamorphic