Acids and Bases Wrap-up

Which of the following is the strongest base?

• oven cleaner - 13.5

• lemon juice - 2.5

• soap - 10

• blood - 7.4

Which of the following is the weakest base?

• oven cleaner - 13.5

• lemon juice - 2.5

• soap - 10

• blood - 7.4

Which of the following is the strongest acid?

• oven cleaner - 13.5

• lemon juice - 2.5

• soap - 10

• blood - 7.4

Tags

NGSS.MS-PS1-2

A scientist runs tests on an unknown substance. He finds that it is extremely corrosive. It produces H+ ions in solution. And, it has a pH of 1. What type of substance has he identified?

• weak acid

• strong acid

• weak base

• strong base

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

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

• It will increase and get closer to 7

• It will decrease and get closer 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 are properties of acids?

• They conduct electricity when dissolved in water

• They taste sour

• They react with metals to produce hydrogen gas

• All of the answer choices are correct

Bases turn blue litmus paper red.

• True

• False

Tags

NGSS.MS-PS1-2

Explain what happens when a strong acid and a strong base are poured into the same container.

• they form separate layers
• they mix physically but not chemically
• they break apart into separate elements
• they react chemically to form a salt

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5