Unit 6 Acids and Bases

Acids taste

• sour

• salty

• sweet

• bitter

Bases taste

• sour

• salty

• sweet

• bitter

The characteristic ions of acids is

• sodium ion (Na⁺)

• carbonate ion (CO₃^2-)

• hydrogen ion (H⁺)

• hydroxide ion (OH^-)

The characteristic ions of bases is

• sodium ion (Na⁺)

• carbonate ion (CO₃^2-)

• hydrogen ion (H⁺)

• hydroxide ion (OH^-)

An Arrhenius acids is defined as

• a substance that produces hydrogen ions in solution

• an electron pair acceptor

• a substance that produces hydroxide ions in solution

• a proton acceptor

Which substance can be classified as an Arrhenius base?

• HCl

• NaCl

• LiOH

• H₂SO₄

What is the acid in this equation?

HNO₂ + H₂O → NO₂^- + H₃O⁺

• H₂O

• HNO₂

• NO₂^-

• H₃O⁺

What is the conjugate base in this equation?

HNO₂ + H₂O → NO₂^- + H₃O⁺

• H₂O

• HNO₂

• NO₂^-

• H₃O⁺

What is the conjugate acid in this equation?

HNO₂ + H₂O → NO₂^- + H₃O⁺

• H₂O

• HNO₂

• NO₂^-

• H₃O⁺

What is the conjugate base in this equation?

S^2- + H₂O → OH^- + HS^-

• S^2-

• H₂O

• OH^-

• HS^-