SmarterEd

Aussie Maths & Science Teachers: Save your time with SmarterEd

CHEMISTRY, M3 EQ-Bank 16

Write balanced chemical equations for each of the following reactions (states of matter are not required).

  1. The reaction between lithium hydroxide and hydrochloric acid.   (1 mark)

  2. The reaction between potassium carbonate and hydrochloric acid.   (1 mark)

Show Answers Only

a.    \(\ce{LiOH + HCl -> LiCl + H2O}\)

b.    \(\ce{K2CO3 + 2HCl -> 2KCl + CO2 + H2O}\)

Show Worked Solution

a.    Acid-Base

\[\ce{LiOH + HCl -> LiCl + H2O}\]

b.    Acid-carbonate

\[\ce{K2CO3 + 2HCl -> 2KCl + CO2 + H2O}\]

CHEMISTRY, M3 EQ-Bank 14

Write balanced chemical equations for each of the following reactions (states of matter are not required).

  1. The reaction between potassium hydroxide and sulfuric acid.   (1 mark)
  2. The reaction between sodium bicarbonate \(\ce{(NaHCO3)}\) and acetic acid \(\ce{(CH3COOH)}\).   (1 mark)
Show Answers Only

a.    \(\ce{2KOH + H2SO4 -> K2SO4 + 2H2O}\)

b.    \(\ce{NaHCO3 + CH3COOH -> CH3COONa + CO2 + H2O}\)

Show Worked Solution

a.   Acid-base 

\(\ce{2KOH + H2SO4 -> K2SO4 + 2H2O}\)

b.   Acid-carbonate 

\(\ce{NaHCO3 + CH3COOH -> CH3COONa + CO2 + H2O}\)

CHEMISTRY, M3 EQ-Bank 3

Identify the products when solid calcium carbonate \(\ce{(CaCO3)}\) reacts with aqueous nitric acid \(\ce{(HNO3)}\) and write the balanced chemical equation for the reaction.   (3 marks)

Show Answers Only

\(\ce{CaCO3_{(s)} + 2HNO3_{(aq)} \rightarrow H2O_{(l)} + CO2_{(g)} + Ca(NO3)2_{(aq)}}\)

Show Worked Solution

→ Solid calcium carbonate and nitric acid produce: \(\ce{H2O(l),\ CO2(g), Ca(NO3)2(aq)} \).

→ Balanced equation:

\(\ce{CaCO3(s) + 2HNO3(aq) \rightarrow H2O(l) + CO2(g) + Ca(NO3)2(aq)}\)