📖 Theory & Concepts▼

Thermal Decomposition

SubstanceEquation
CuSO₄·5H₂OCuSO₄·5H₂O → CuSO₄ + 5H₂O↑
Pb(NO₃)₂2Pb(NO₃)₂ → 2PbO + 4NO₂↑ + O₂↑
NaHCO₃2NaHCO₃ → Na₂CO₃ + H₂O + CO₂↑

Observations

  • CuSO₄·5H₂O: Blue crystals turn white + steam rises
  • Pb(NO₃)₂: White powder → Yellow PbO + Brown NO₂ fumes
  • NaHCO₃: White powder → Na₂CO₃ + CO₂ gas (turns lime water milky)

Select Substance

Expected Observation
Blue crystals of hydrated copper sulphate will turn white (anhydrous) upon heating. Steam will be released as water of crystallization escapes.
Ready to heat
CuSO₄·5H₂O (Blue)
Lab Journal
Waiting for experiment...
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