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Form 2 Chemistry questions and answers on properties and trends across a period

Form 2 Chemistry questions and answers on properties and trends across a period.

Lessons (5)

• 1.    Explain why anhydrous aluminium chloride is fairly soluble in organic solvent while anhydrous magnesium chloride is insoluble.
  1m 7s

• 2.    Give a reason why phosphorus is stored under water.
  0m 28s

• 3.    Yellow phosphorus reacts with chlorine gas to form a yellow liquid. The liquid fumes when exposed to air. Explain these observation
  1m 22s

• 4.    Explain why there is general increase in the first ionization energies of the elements in period 3 of the table from left to right.
  1m 20s

• 5.    Iron (III) oxide was found to be contaminated with copper (II) sulphate. Describe how a pure sample of iron (III) oxide can be obtained.
  1m 21s