Acids and Bases

Ammonia has a pH of 12.  Ammonia is __________.

• an acid
• a base
• an element
• a metal

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

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

Which of these solutions is an acid?

• Dish Soap: pH of 12
• Tomato Soup: pH of 4
• Baking Soda: pH of 9
• Drain Cleaner: pH of 14

Compounds form when _______________.

• atoms of one element bond together
• atoms of two or more elements bond together
• molecules of one element are mixed together
• molecules of two or more elements are mixed together

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

What is the pH of water?

• 0
• 4
• 7
• 14

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 a property of a base?

• bitter taste

• reacts with metals

• salty

• sour taste

Acids react with metals

• True

• False