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Write Chemical Equations for the following:

a) Aluminium oxide reacting with sodium hydroxide.
b) Action of NH4OH on Fe2(SO4)3.
c) Zinc oxide is treated with sodium hydroxide solution

1 Answer

5 votes

Answer:

The chemical equations for the reactions you mentioned are:

a) Aluminium oxide reacting with sodium hydroxide


\boxed{\bold{Al_2O_3 + 2NaOH \longrightarrow 2NaAlO_2 + H_2O}}

In this reaction, aluminium oxide
\bold{Al_2O_3)} reacts with sodium hydroxide (NaOH) to form sodium aluminate
\bold{(NaAlO_2)} and water
\bold{(H2O)}

b) Action of
\bold{NH4OH} on
\bold{Fe_2(SO_4)_3}


\boxed{\bold{Fe_2(SO_4)_3 + 6NH_4OH → 2Fe(OH)_3 + 3(NH_4)_2SO_4}}

In this reaction, iron (III) sulfate
(Fe_2(SO_4)_3) reacts with ammonium hydroxide
(NH_4OH) to form iron (III) hydroxide
(Fe(OH)_3) and ammonium sulfate
((NH_4)_2SO_4).

c) Zinc oxide is treated with sodium hydroxide solution


\boxed{\bold{ZnO + 2NaOH → Na_2ZnO_2 + H_2O}}

In this reaction, zinc oxide (ZnO) reacts with sodium hydroxide (NaOH) to form sodium zincate (Na_2ZnO_2) and water
\bold{ (H_2O)}

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