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In an experiment, a few drops of concentrated nitric (V) acid were added to aqueous iron (II) sulphate in a test-tube. Excess sodium hydroxide solution was then added to the mixture.
(a) State the observations that were made when:
(i) Concentrated nitric (V) acid was added
to aqueous iron(II) sulphate.
(ii) Excess sodium hydroxide was added to the mixture.
(b) Write an ionic equation for the reaction which occurred in (a) (ii) above.