Question

A strip of solid nickel metal is put into a beaker of 0.026m feSO₄ solution. What will be the result of this reaction?

1) The nickel strip will dissolve completely in the solution.
2) The nickel strip will remain unchanged.
3) The nickel strip will react with the solution to form a precipitate.
4) The nickel strip will react with the solution to produce a gas.

Answer 1

A strip of solid nickel metal will react with a 0.026M FeSO₄ solution to form iron(II) ions and nickel(II) sulfate, resulting in a blue-green solution.

Step-by-step explanation:

When a strip of solid nickel metal is put into a beaker of a 0.026M FeSO₄ (iron(II) sulfate) solution, a single-replacement reaction occurs. Nickel is above iron in the activity series, which means nickel can displace iron in a chemical reaction, but iron cannot displace nickel. Therefore, the result of the reaction is that the nickel strip will react with the solution to form iron(II) ions and nickel(II) sulfate, resulting in a blue-green solution due to the presence of the nickel(II) ions.