Magnesium oxide is used to line the inside of furnaces. Magnesium oxide has a giant ionic lattice structure. The melting point of magnesium oxide is 2852 °C.
Describe the structure of a giant ionic lattice.
Explain why magnesium oxide has a high melting point.
The table shows whether magnesium oxide conducts electricity.
| State of magnesium oxide | Does it conduct electricity? |
|---|---|
| solid | no |
| molten (liquid) | yes |
Explain these results.
Suggest why magnesium oxide is a good material for lining a furnace.
56 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.