Chemical Reactions & Gas Laws

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

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

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

• amount

• concentration

• color

• charge

Tags

NGSS.HS-PS1-5

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

Ocean water is only slightly basic. What might its pH value be?

• 5

• 8

• 12

• 2

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

• 3

• 5

• 7

• 9

• 11

List four factors that affects the rate of a reaction

• temperature

• concentration

• surface area

• volume

• catalysts

Tags

NGSS.HS-PS1-5