1.

An aqueous solution of sodium carbonate has a pH greater than 7 because

Answer»

It contains more CARBONATE ION than `H_(2)O` molecules
Contains more hydroxide IONS than carbonate ions
`Na^(+)` ions REACT with water
Carbonate ions react with `H_(2)O`

Solution :`pH gt 7` = Basic
It means contain more hydroxide ion than carbonate ions.


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