Answer:
the final observations after the reaction is complete include the formation of copper metal as a solid and magnesium sulfate solution remaining in the solution. Additionally, there may be evidence of gas evolution during the reaction.
Explanation:
The reaction between copper(II) sulfate solution (CuSO4(aq)) and magnesium metal (Mg(s)) results in the formation of copper metal (Cu(s)) and magnesium sulfate solution (MgSO4(aq)).
The balanced chemical equation for the reaction is:
\[ CuSO_4(aq) + Mg(s) \rightarrow Cu(s) + MgSO_4(aq) \]
After the reaction is complete, the observations are as follows:
1. Copper metal (Cu(s)) will form a solid and may appear as a reddish-brown precipitate or coating on the surface of the reaction vessel.
2. Magnesium sulfate solution (MgSO4(aq)) will remain in the solution and may appear as a clear or slightly cloudy liquid, depending on the concentration of the solution.
3. There may be effervescence or bubbling observed during the reaction, indicating the release of hydrogen gas as magnesium reacts with the aqueous copper(II) sulfate solution.
So, the final observations after the reaction is complete include the formation of copper metal as a solid and magnesium sulfate solution remaining in the solution. Additionally, there may be evidence of gas evolution during the reaction.
