S2 questions

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    Created by
    miyu sago

    Cards (3)

    • what are the properties of ionic compounds?
      mp and bp- high
      solid- do not conduct electricity (no free electrons and ions are fixed position and cannot move towards electrones)
      molten-electrolytes (no free electrons and charge can be carried by the mobile ions)
      solubility- ionic compounds are soluble in water and ions become hydrated
      if the hydration enthalpy is greater than the lattice enthalpy of an ionic compound, the compound dissolves easily in water
    • what are the factors affecting lattice enthalpy?
      the size and charge of ion (when it is more dense, higher the lattice enthalpy)
    • when the number of shared pairs of electron increases....
      bond length decreases and bond strength increases
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