Chemistry · BGCSE / Bonding and structure
StructuredPast exam questionForm 5 · BGCSE
Chlorine reacts with sodium: 2Na(s) + Cl₂(g) → 2NaCl(s). The diagram shows part of the lattice structure of sodium chloride.
- aWhat type of bonding is in sodium chloride, NaCl? [1]
- bDescribe how the particles are arranged in the lattice. [2]
- cCalcium oxide has the same type of lattice structure as sodium chloride. Its melting point is 2600 °C and that of sodium chloride is 808 °C. Explain why the melting point of calcium oxide is higher. [2]
You'll mark your own answer against the marking guide when you hand it in.
Source: BEC BGCSE Chemistry 2005, Paper 3, Question 2(c)
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