This question is about magnesium, magnesium oxide and magnesium sulfate. The table gives some data about the electrical conductivity of magnesium and magnesium oxide. Explain the similarities and differences in the electrical conductivity of the two substances. (2) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................

Chemistry

IGCSE&ALevel

EDEXCEL

Exam No：wch11-01-que-20240111 Year：2024 Question No：20(c)

Answer:

An answer that makes reference to the following points:
- Mg: has delocalised electrons (that are free to move) when solid and liquid
- MgO: ions are only free to move when liquid

Answer:

Knowledge points:

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Answer:

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