Conjugate Acids and Bases

Which compound is the conjugate base?

HCO₃^- + HCl ==> H₂CO₃ + Cl^-

• HCO₃^-

• HCl

• H₂CO₃

• Cl^-

Tags

NGSS.HS-PS1-2

NH₃ + H₂O --> NH₄⁺ + OH^-

What is H₂O in this reaction?

• acid

• base

• conjugate acid

• conjugate base

In the reaction HCl + H₂O --> H₃O⁺ + Cl^-, what is the conjugate acid?

• HCl
• H₂O
• H₃O⁺
• Cl^-

Given the equation:

H₂SO₄ + H₂O ↔ H₃O⁺ + HSO₄^{- 1}

What is the conjugate acid?

• H₂SO₄

• H₂O

• H₃O⁺

• HSO₄^{- 1}

Which of the following would you expect to react with metal, taste sour, and turn litmus paper red?

• NaOH

• NH₃

• LiOH

• HCl

Which one of the following will turn litmus paper blue, taste bitter, and feel slippery?

• HCl

• HF

• NaOH

• H₂O

Bases release ____________ ions when they break down or dissociate.

• Hydrogen (H+)

• Hydroxide (OH-)

• Hydronium (H₃O+)

• Water (H₂O)

Acids produce _________ ions when they break down or dissocciate.

• Hydroxide (OH-)

• Water (H₂O)

• Chlorine (Cl-)

• Hydrogen (H+)