When zinc is added to a solution of copper sulfate, it displaces the copper and creates a solution of zinc sulfate.
Because aluminum is above zinc in the reactivity series and this zinc cannot remove aluminum from its aqueous salt solution, no reaction will happen if a piece of zinc metal is introduced to an aluminum sulphate solution.
HCl does not react with silver or gold. This is due to the fact that they, like other reactive metals, are unable to remove hydrogen from HCl. Silver cannot replace hydrogen since it is below it in the reactivity sequence.
The most typical solution that can react with gold is "Aqua Regia," a 1:3 solution of nitric acid and hydrochloric acid. Magnesium nitrate is quite stable, therefore it is unlikely that it would interact with gold on its own.
Chromium hydroxide is created when sodium hydroxide and chromium chloride mix.
To learn more about reaction
https://brainly.com/question/3069273
#SPJ4
