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Chemical Equilibrium and Solubility (video, notes and quizzes with corrections) - Catch-up Class: Overview



Chemical Equilibrium and Solubility (video, notes and quizzes with corrections): Introduction Topics

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  • Nov. 15, 2022, 6:52 a.m.
    Fanu nadine

    Why is PbO more stable than PbO2?

  • Sept. 17, 2022, 4:02 p.m.
    Nelson Kangha Geh

    Please sir why does the hallogens have increase in intermolecular forces down the group instead

    • Oct. 9, 2022, 11:06 a.m.
      Wanyu

      Halogens exist as non polar diatomic molecules, so the only intermolecular force holding these molecules together is the van der waals dispersion forces. Down the group, there is increase in number of electrons available to create temporal dipoles that are required for these van der waals forces. Consequently there is an increase in the number of forces created per mole thus increasing the strength of the forces down the group.

  • Sept. 17, 2022, 3:57 p.m.
    Nelson Kangha Geh

    whats radioactivity please

    • Oct. 9, 2022, 11:08 a.m.
      Wanyu

      Radioactivity is the random (uncontrolled) decay (or disintegration) of heavy unstable nuclei to smaller and more stable nuclei by the emission of radiation.

  • June 16, 2022, 11:45 a.m.
    Solomon Bless

    If we remove the the oxygen atoms and link with a double bond. 

    I think we should have D and not C.(chem 2018 number 12)

    • June 16, 2022, 11:46 a.m.
      Solomon Bless

      Question 9.

  • May 17, 2022, 2:07 p.m.
    Ben Cresus

    please i don't understand question 24 june 2019 P1 

  • April 19, 2022, 8:30 a.m.
    KENG ElSON

    what is solubility?

  • March 27, 2022, 11:01 p.m.
    Solomon Bless

    I don't understand

    All I head is reverse equation 2

  • March 1, 2022, 5:52 p.m.
    Ben Cresus

    NO SOLUTION TO QUESTION 13(2019)

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