Period 3 + oxygen

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Chemistry

A-Level Chemistry

CIE

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7 Terms

1
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Sodium + oxygen

4Na (s) + O2 (g) → 2Na2O (s)

  • heat

  • vigorous reaction

  • bright yellow flame

  • Na2O (s) is a white solid

2
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Magnesium + oxygen

2Mg (s) + O2 (g) → 2MgO (s)

  • heat

  • vigorous reaction

  • bright white flame

  • MgO (s) is a white solid

3
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Aluminium + oxygen

4Al (s) + 3O2 (g) → 2Al2O3 (s)

  • powdered Al

  • Fast reaction

  • Bright white flame

  • White powder produced

4
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Silicon + oxygen

Si (s) + O2(g) → SiO2 (s)

  • Powdered Si, heat strongly

  • slow reaction

  • bright white sparkles

  • white powder produced

5
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Phosphorous + oxygen

4P (s) + 5O2 (g) → P4O10 (s)

  • heat

  • vigorous reaction

  • yellow/white flame

  • white clouds produced

6
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sulphur + oxygen

S (s) + O2(g) → SO2(g)

  • powdered S + heat

  • gentle reaction

  • blue flame

  • toxic flames

7
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