What will happen if an aluminium spoon is used to stir an Fe(NO3)2 solution? Why?
Al is higher in the activity series of metals than is Fe; therefore, Al metal will go into solution and Fe will plate out on the spoon.
2Al(s) + 3Fe(NO3)2(aq) ==> 2Al(NO3)3(aq) + 3Fe(s)
If an aluminum spoon is used to stir an Fe(NO3)2 solution, a redox reaction known as a displacement reaction will occur. The aluminum metal will react with the iron(II) ions in the solution, resulting in the aluminum displacing the iron from the compound. This reaction can be summarized as follows:
Al(s) + Fe(NO3)2(aq) → Al(NO3)3(aq) + Fe(s)
The aluminum metal gets oxidized to form aluminum nitrate (Al(NO3)3), while the iron(II) ions get reduced to elemental iron (Fe). The solid iron will be observed as a black/brown precipitate.
This reaction is possible because aluminum is more reactive than iron in the electrochemical series. The higher reactivity of aluminum allows it to displace iron from the compound.
If an aluminum spoon is used to stir an Fe(NO3)2 solution, a chemical reaction may occur. This is because aluminum is more reactive than iron, and in the presence of certain solutions, such as nitrates, it can undergo a redox reaction.
To understand this reaction, we need to consider the reactivity series of metals. In this series, aluminum is ranked higher than iron. When a more reactive metal comes into contact with a solution that contains a less reactive metal, it can displace the less reactive metal, leading to a chemical reaction.
In the case of the Fe(NO3)2 solution, the aluminum spoon can displace iron from its compound, Fe(NO3)2. This reaction can be represented as follows:
2Al(s) + 3Fe(NO3)2(aq) -> 2Al(NO3)3(aq) + 3Fe(s)
As a result of this reaction, aluminum (Al) ions will be dissolved into the solution, forming aluminum nitrate (Al(NO3)3). Meanwhile, iron (Fe) will be displaced from the solution and deposited as solid iron.
This reaction might be observed as a change in color, the formation of precipitates, or gas evolution, depending on the specifics of the solution.
It is worth noting that this reaction occurs specifically with aluminum and a solution containing iron ions, and the reactivity of metals might vary in other scenarios.