Acids and Bases Practice

Ammonia has a pH of 12.  Ammonia is __________.

• an acid

• a base

• an element

• a metal

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

What does the pH scale measure?

• the concentration of acids and bases

• the malleability of a metal

• the temperature of the water in a swimming pool

• the amount of phosphorus in a compound

The pH of vinegar is 2.5.  Vinegar is a _____________.

• strong acid

• strong base

• weak base

• weak acid

Which of the following is true about acids and bases?

• The lower the pH, the stronger the acid

• the higher the pH, the stronger the acid

• The lower the pH, the more neutral the acid

• The higher the pH, the weaker the base

Which statement is true when acids and bases are mixed together?

• acids become stronger

• bases become stronger

• there is no change

• they neutralize each other

Ranging from 0 to 14, a pH value indicates how acidic or basic a solution is.  Which of these pH values would be a strong acid?

• 2

• 6

• 9

• 13

What does a pH of 1 indicate about a liquid?

• it is a very strong base

• it is a weak base 

• it is a weak acid

• it is a strong acid

Any substance that produces hydroxide ions in water is known as _____________.

• an acid

• a hydrogen ion

• a base

• a neutral

Soap is a weak base.  What is true about the taste of bases?

• they taste sour

• they taste sweet

• they taste bitter

• they taste salty