Chem AS Edexcel Question Help PLEASE :)

1) Write the equation for the reaction between Conc. Sulphuric acid and solid Potassium Chloride, KCL.

I've got KCL + H2SO4 = KHSO4 +HCL

2) This ones totally stumped me:

Explain why the melting temperature of boron trichloride, BCL3, is much lower than that of Sodium Chloride. (4 marks)

These are from a edexcel past paper - Unit 1.

Please help. Thanks SO much.

BCl_3

is a simple molecular compound that only exibits VdW forces of attraction as intermolecular forces of attraction whereas

NaCl

is ionically bonded and will have much stronger electrostatic forces of attraction between ions :smile:

:smile:

OP

thelostchild

BCl_3

is a simple molecular compound that only exibits VdW forces of attraction as intermolecular forces of attraction whereas

NaCl

is ionically bonded and will have much stronger electrostatic forces of attraction between ions :smile:

:smile:

Thanks SO MUCH

kashfi

plan an experiment to find the concentration of a solution.
could any1 give some steps to carry this out?
thanx alot

Please dont hijack threads <<

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