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Summary A* GRADE AQA A-Level Chemistry: Inorganic - Properties of Period 3 elements and their oxides (3.2.4) $3.91   Add to cart
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Summary A* GRADE AQA A-Level Chemistry: Inorganic - Properties of Period 3 elements and their oxides (3.2.4)
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  • Course
  • Unit 3.2.4 - Properties of Period 3 elements and their oxides
  • Institution
  • AQA

I achieved a high A* Grade in my final A-Level exams using these notes!!! I believe you can achieve an A* if you can memorise these notes! Simply use blurting, a method of active recall, to write everything you remember from the notes, then identify the parts you couldn’t remember, then repeat ...

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  • March 31, 2023
  • May 1, 2023
  • 2
  • 2021/2022
  • Summary

Subjects

  • oxide
  • period 3

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  • A/AS Level
  • AQA
  • A Level Chemistry
  • Unit 3.2.4 - Properties of Period 3 elements and their oxides
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Na (1) + water
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
 vigorous
 molten ball on surface + fizzing (H2 gas)
 alkaline pH12-14
more reactive than Mg – less energy required to remove 1 electron than 2


Mg (2) + water
Mg(s) + 2H2O(l) → Mg(OH)2(aq) + H2(g)
 slow
 thin Mg hydroxide coating on surface of metal
 weakly alkaline pH9-10 – sparingly soluble in water (few OH- produced)

reacts faster with steam:
Mg(s) + H2O(g) → MgO(s) + H2(g)




Oxid Formation: reaction with Structure Melting point Reaction with water

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