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OCR Advanced GCE in Chemistry/Periodic Table: Period 3/Answers
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1. Reaction with water - Hydrolysis:
SiCl4(l) + 2H2O(l) ---> SiO2(s) + 4HCl(g)
White fumes hydrogen chloride gas
Acid base reaction - solid magnesium oxide dissolves
MgO(s) + HCl(aq) ---> MgCl(aq) + H2O(l)
2. Intermediate - no
3. sodium
4. Use steam
5. PCl3 - excess chlorine
6. see page