An unknown solution containing one of the salts ZnSO_13 MgSO_4 or SrCl_2 given,

Question

An unknown solution containing one of the salts ZnSO_13 MgSO_4 or SrCl_2 given, negative flame test but timeshare a piece of magnesium Inserted into the solution. Which salt was the solution? The healing of CuSO_4·5H_2O yields several transitions as a function of temperature. The table below gives the percentage of original mass lost as a function of the approximate temperature Use these percentages to determine the sequence of decompositions and write chemical equations for each transition. percentage of original mass lost approximate temperature (^6C)

Explanation / Answer

10). ZnSO4 and MgSO4 gives negative flame test. Because Zn2+ contains complete filled d orbitals, Mg2+ doesn't contains d electrons.

Unknown solution contains ZnSO4 salt. Mg piece is incert in this solution Mg loss their shine due to oxidation.because oxidation potential of Mg is morethan Zn.

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