Formulae

Cu(OH)₂

Copper (II) hydroxide (s) (green-blue)

Cu(NO₃)₂

Copper (II) nitrate (s) (blue)

Cu(NO₃)₂.3H₂O

CuO

Copper (II) oxide (s) (black)

H₂SO₄

Sulfuric acid (aq) (colourless)

CuSO₄

Copper (II) sulfate (aq) (blue)

Cu(NO₃)₂ + H₂O + NaOH → Cu(OH)₂

Copper (II) nitrate + water + sodium hydroxide solution → copper (II) hydroxide precipitate

Cu(OH)₂ + heat → CuO

CuO + H₂SO₄ → CuSO₄

AgNO₃

Silver nitrate solution (aq) (colourless)

NaCl

Sodium chloride solution (aq) (colourless)

AgCl

Silver chloride solid (s) (white)

NaNO₃

Sodium nitrate solution (aq) (colourless)

BaCl₂

Barium chloride solution (aq) (colourless)

Na₂SO₄

Sodium sulfate solution (aq) (colourless)

BaSO₄

Barium sulfate solid (s) (white)

BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl

HCl

Hydrochloric acid (aq) (colourless)

NaOH

Sodium hydroxide (aq) (colourless)

HCl + NaOH → NaCl + H₂O

Hydrochloric acid (aq) (colourless) + sodium hydroxide (aq) (colourless) → sodium chloride solution (aq) (colourless) + water

Zn

Zinc (s) (silver)

Cu

Copper (II) (s) (brown)

ZnSO₄

Zinc sulfate solution (aq) (colourless)

CuSO₄ + Zn → Cu +ZnSO₄

Copper (II) sulfate + zinc → copper (II) + zinc sulfate solution

Pb(NO₃)₂ + Zn → Pb + Zn(NO₃)₂

Lead (II) nitrate solution + zinc → lead + zinc nitrate solution

Pb(NO₃)₂

Lead (II) nitrate solution (aq) (colourless)

Pb

Lead metal (s) (black/grey sparkling)

Zn(NO₃)₂

Zinc (II) nitrate solution (aq) (colourless)

AgNO₃ + Cu → Ag + CuNO₃

CuCO₃

Copper (II) carbonate solution (s) (blue)

CuCO₃ + heat → CO₂ + CuO

Copper (II) carbonate solution + heat → carbon dioxide + copper (II) oxide

CaCO₃

Calcium carbonate (s) (white)

CaCl₂

Calcium chloride solution (l) (colourless)

CaCO₃ + 2HCl → CaCl₂ + H₂O +CO₂

MgCl₂

Magnesium chloride solution (l) (colourless)

2HCl + Mg → MgCl₂ +H₂