Acids & Bases Practice

Lime juice is an acid. Which acid property does lime juice have?

• feels slippery

• tastes bitter

• tastes sour

• turns litmus paper blue

Baking soda is a base. Which base property does baking soda have?

• feels sticky

• tastes bitter

• tastes sour

• turns litmus paper red

Vinegar is an acid. Which of the pH measurements reflect a pH of vinegar?

• 7.0

• 10.1

• 2.9

• 7.3

What ion is formed when an acid ionizes in water?

• H₃O⁺

• H₃O^-

• OH⁺

• OH^-

What ion is formed when a base ionizes in water?

• OH^-

• OH⁺

• H₃O⁺

• H₃O^-

What happens to the pH of a solution as the amount of H₃O⁺ in a solution increases?

• decreases
• increases

• remains the same

Which substance has a neutral pH?

• distilled water

• lemon juice

• citrus pop

• NaOH

What color does the indicator phenolphthalein (used in the Monster Lab) turn in a basic solution?

• pink
• green

• blue

• colorless

Which of the following substances dissociates completely in solution to form OH^- ions?

• strong acid

• weak acid

• weak base

• strong base

Match the substances in this acid base equation with the description that best matches.

H₂O + HNO₃ → NO₃^- + H₃O⁺

• conjugate acid

• H₃O⁺

• reactant that acts as a base

• HNO₃

• conjugate base

• H₂O

• reactant that donates H⁺

• NO₃^-