why does silicon dioxide have such a high melting/boiling point?
It has a giant lattice structure, strong covalent bonds are difficult to break etc.
KD
Related Chemistry A Level answers
All answers ▸Explain how fractional distillation works.
Explain why hydrogen bromide has a higher boiling point than hydrogen chloride.
Explain the trends in ionisation energies across the 2nd period of the periodic table?
1.5 g of hydrocarbon undergoes complete combustion to give 4.4 g of CO2 and 2.7 g of H2O. Given this data, what is the empirical formula of this hydrocarbon?