Write down the equations of ion exchange reactions (molecular, full and abbreviated ionic)

Write down the equations of ion exchange reactions (molecular, full and abbreviated ionic): a) barium chloride and sulfuric acid b) hydrochloric acid and sodium hydroxide c) potassium carbonate and hydrochloric acid d) nitric acid and calcium hydroxide

A).

As a result of the reaction between barium chloride and sulfuric acid, a precipitate is formed – barium sulfate, hydrochloric acid is formed.

BaCl₂ + H₂SO₄ = BaSO₄↓ + 2HCl.

Ba²⁺ + 2 Cl^1- + 2H¹⁺ + SO₄^2- = BaSO₄↓ + 2H¹⁺ + 2 Cl^1-.

Ba²⁺ +  SO₄^2- = BaSO₄↓.

B). The reaction between sodium hydroxide and hydrochloric acid is a neutralization reaction: salt (sodium chloride) and water are formed.

NaOH + HCl = NaCl + H₂O.

Na¹⁺ + OH^1- + H¹⁺ + Cl^1- = Na¹⁺ + Cl^1- + H₂O.

H¹⁺ + OH^1-  = H₂O.

V). The product of the reaction between potassium carbonate and hydrochloric acid is potassium chloride, carbon dioxide and water.

K₂CO₃ + 2HCl = 2KCl + CO₂↑ + H₂O.

2K¹⁺ + CO₃^2-+ 2H¹⁺ + 2Cl¹⁺ = 2K¹⁺ + 2 Cl^1- + CO₂↑ + H₂O.

2 H¹⁺ + CO₃^2- = CO₂↑ + H₂O.

G). The reaction between calcium hydroxide and nitric acid produces calcium nitrate and water.

Ca(OH)₂ + 2HNO₃ = Ca(NO₃)₂  + 2H₂O.

Ca²⁺ + 2 OH^1- + 2H¹⁺ + 2 NO₃^1- = Ca²⁺ + 2 NO₃^1-  + 2H₂O.

2H¹⁺  + 2 OH^1- = 2H₂O.