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Acid Base Character of Period 3 Oxides
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Na2O

Sodium Oxide is a base

Na2O + H2O --> 2NaOH

MgO

Magnesium Oxide is a base

MgO + H2O --> Mg(OH)2

Al2O3

Aluminium Oxide is amphoteric (can act as acid or a base)

As a base: Al2O3 + 6HCl --> 2AlCl3 + 2H2O
As an acid: Al2O3 + 6NaOH + 3H2O --> 2Na3Al(OH)6

SiO2

Silicon Dioxide is acidic

SiO2 + 2NaOH --> 2Na2SiO3 + H2O

P4O10

Acidic

P4O10 + 6H2O --> 4H3PO4

SO2

Acidic

SO2 + H2O --> H2SO3

SO3

Acidic

SO3 + H2O --> H2SO4

Other Notes in this Category

  1. Acid Base Character of Period 3 Oxides
  2. Acid-Base Character of Group 4 Oxides
  3. Covalent Radius
  4. Defintions: Electrophile, nucleophile, radical
  5. Equations of reactions of period 3 elements with oxygen and chlorine.
  6. Ionization Energy and Electron Affinity
  7. Ionization Energy and Electron Affinity 2
  8. Thermal Stability of gp1 and 2 carbonates.

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