Solutions, Acids and Bases

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

Releases hydrogen in an aqueous solution.

• base

• acid

• strong base

• weak base

The closer the pH is to 7, the ______________ the acid/base is.

• weaker

• stronger

What color does a base turn red litmus paper?

• red

• blue

Which of the following is most likely to be a base?

• lemon juice

• laundry detergent

• vinegar

• Coke

Why are bases useful as cleaning products?

• They dissolve fats and oils

• they are corrosive, so they eat anything

• they don't mix with water

• since bases are slippery, they slip dirt off of surfaces

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

• strongly acidic

• strongly basic

• slightly acidic

• slightly basic

Tags

NGSS.HS-LS1-3

When dissolved in water, acids produce:

• bases

• salts

• hydrogen ions

• hydroxide ions

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

• oxide

• oxygen

• hydrogen

• hydroxide

Which of the following is the strongest base?

• oven cleaner - 13.5

• lemon juice - 2.5

• soap - 10

• blood - 7.4