Use the structure of sodium chloride to explain why it has a high melting point. (2 marks)
There are strong electrostatic forces of attraction between oppositely charged ions within sodium chlorides giant lattice. The strong electrostatic forces must be broken in order to melt sodium chloride. Significant heat energy is needed to break this attraction.
EC
Related Chemistry GCSE answers
All answers ▸Why can Diesel be separated from crude oil using fractional distillation?
Use your own knowledge to compare and contrast the physical and chemical properties of Transition metals and group 2 elements. Use examples to explain your answer.
Given the balanced equation: MgCO3 + 2HCl --> MgCl2 + H2O + CO2, if 5 grams of MgCO3 is used, what volume of CO2 is produced? (molar mass of MgCO3 is 84.3 g/mol)
Describe and explain the properties of graphene