Worksheet: Acid–Base Reaction Equations

In this worksheet, we will practice writing balanced chemical equations for acid–base reactions and describing common patterns of reactivity.

Q1:

Write a balanced molecular equation for the acid–base reaction between barium hydroxide and nitric acid, including state symbols.

  • A B a O H ( ) + H N O ( ) B a ( N O ) ( ) + H O ( ) a q a q a q l 3 3 2 2
  • B B a ( O H ) ( ) + 2 H N O ( ) B a ( N O ) ( ) + 2 H O ( ) 2 3 3 2 2 a q a q a q l
  • C B a ( O H ) ( ) + H N O ( ) B a N O ( ) + 2 H O ( ) 2 2 3 3 2 a q a q s l
  • D B a ( O H ) ( ) + H N O ( ) B a N O ( ) + 2 H O ( ) 2 2 3 3 2 a q a q a q l
  • E B a O H ( ) + H N O ( ) B a N O ( ) + H O ( ) a q a q s l 3 3 2

Q2:

Write a balanced molecular equation for the acid–base reaction between hydrogen hypochlorite (HOCl) and water, including state symbols.

  • A H O C l ( ) + H O ( ) H O C l ( ) + 2 H ( ) a q l a q a q 2 2 2 +
  • B H O C l ( ) + H O ( ) O C l ( ) + H O ( ) a q l a q a q 2 3 +
  • C H O C l ( ) + H O ( ) H C l ( ) + H ( ) + O ( ) a q l a q g g 2 2 2
  • D H O C l ( ) + H O ( ) H C l ( ) + H O ( ) a q l a q a q 2 2 2
  • E H O C l ( ) + H O ( ) H O C l ( ) + O H ( ) a q l a q a q 2 2 +

Q3:

In dilute aqueous solutions, HF acts as a weak acid. However, pure liquid HF (boiling point = 19.5C) is a strong acid. In liquid HF, HNO3 acts like a base and accepts protons. The acidity of liquid HF can be increased by adding one of several inorganic fluorides that are Lewis acids and accept F ions (i.e., BF3 or SbF5).

Give a balanced chemical equation for the reaction of HNO3 with pure HF.

  • A H N O + H F H F + N O 3 2 + 3
  • B H N O + H F H F + N O 3 2 3
  • C H N O + H F H N O + F 3 2 3 +
  • D H N O + H F H N O + F 3 2 3

Give a balanced chemical equation for the reaction of BF3 with pure HF.

  • A B F + H F B F + H 3 4 +
  • B B F + H F H B F + F 3 3 +
  • C B F + H F H B F + F 3 3
  • D B F + H F B F + H 3 4

Q4:

Which of the following statements is false?

  • AIn a reduction-oxidation reaction, the reducing agent loses electrons.
  • BA Lewis base may react by gaining protons.
  • CThe average change in oxidation state for atoms of an element undergoing a reduction-oxidation reaction can be zero.
  • DAcid-base reactions always produce a neutral solution.
  • EA Brønsted–Lowry acid reacts by losing protons.

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.