What concepts from previous topics could you use when explaining the phenomenon observed in PT?
e.g. chem bonding for melting and boiling points of elements, oxides, chlorides.
There is a trend for the oxides and chlorides of the elements in Period 3. Suggest what factor contributes towards such trend (e.g. pH of oxides and chlorides).
State the factor(s) affecting the pH of metal oxides (Na2O, MgO, Al2O3)
Sketch a graph of the melting points of the non-metal oxides.
Explain the difference in melting point of SiO2, P4O10 and SO3.
AlCl3 has a lower pH than MgCl2.
With reference to the reactions that occur, explain why.