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Revision:Acid Base Character of Period 3 Oxides

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TSR Wiki > Study Help > Subjects and Revision > Revision Notes > Chemistry > Acid Base Character of Period 3 Oxides


Na2O

Sodium Oxide is a base

\mathsf{Na_2O + H_2O \longrightarrow 2NaOH}


MgO

Magnesium Oxide is a base

\mathsf{MgO + H_2O \longrightarrow Mg(OH)_2}


Al2O3

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

As a base: \mathsf{Al_2O_3 + 6HCl \longrightarrow 2AlCl_3 + 2H_2O}

As an acid: \mathsf{Al_2O_3 + 6NaOH + 3H_2O \longrightarrow 2Na_3Al(OH)_6}


SiO2

Silicon Dioxide is acidic

\mathsf{SiO_2 + 2NaOH \longrightarrow 2Na_2SiO_3 + H_2O}


P4O10

Acidic

\mathsf{P_4O_{10} + 6H_2O \longrightarrow 4H_3PO_4}


SO2

Acidic

\mathsf{SO_2 + H_2O \longrightarrow H_2SO_3}


SO3

Acidic

\mathsf{SO_3 + H_2O \longrightarrow H_2SO_4}


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