One more Midterm Review 5

Lemon Juice

Tums (antacid)

Water

Put all of the above household items in order from lowest to highest pH.

• Lemon juice, water, tums

• Water, tums, lemon juice

• Tums, lemon juice, water

• They all have the same pH.

Milk of magnesia is a base. What happens when you drink milk of magnesia for an upset stomach?

• It raises the pH of your stomach.

• It lowers the pH of your stomach.

• It cleanses the stomach to kill all of the bacteria.

• It coats the stomach wall to add a layer of protection.

The pH of a cup of black coffee is 5 while the pH of glass of tomato juice is 4. Comparing the pH of the two liquids, the tomato juice has _______________ [H⁺] than the coffee.

• half as many

• 10 times more

• 10 times less

• 100 times more

Which has a pH below 7?

• Acid
• Base

Which has a bitter taste?

• Base
• Acid
• flagella
• cila

Which type of ion does a base produce when it is dissolved in water?

• oxide
• oxygen
• hydrogen
• hydroxide

Tags

NGSS.MS-PS1-2

Which of the following is an acid?

• vinegar

• bleach

• sugar in water

• starch in water

• toothpaste in water

The pH value of an acid represents its __________ of positive ions in the solution

• amount

• concentration

• color

• charge

Tags

NGSS.HS-PS1-5

What does this solubility curve show?

• Solubility increases as temperature increases
• Solubility decreases as temperature decreases
• Solubility decreases as concentration increases
• Solubility is not affected by temperature

Tags

NGSS.HS-PS1-5

Which of the following would NOT be a way to speed up the rate of solubility of rock salt?

• stir it
• heat the water
• crush the salt
• cool the water

Tags

NGSS.HS-PS1-5