Acid & Bases

Solutions that have more OH– ions than H+ ions are

• acids

• bases

• enzymes

• neutral

Solutions that have more H+ ions than OH- ions are

• acids

• bases

• enzymes

• neutral

Which of the following is the strongest acid?

• soap - 10

• HCL - 0

• blood - 7.45

• soft drink - 3

Which of the following is the strongest base?

• soap - 10

• HCL - 0

• blood - 7.45

• soft drink - 3

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 acids react with metals, they produce hydrogen gas and salt.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

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