Answer:
Given three metals-sodium (Na), magnesium (Mg), copper (Cu) Activity I. When the three given metals Na, Mg and Cu are added to magnesium chloride solution separately taken in three different test tubes, we will find that displacement reactions will take place in the following manner: \[MgC{{l}_{\mathbf{2}}}\]solution Metals Displacement reaction Na No reaction Mg No reaction Cu This shows that Na is the most reactive metal as it displaces Mg from \[MgC{{l}_{2}}\] solution. Activity II. When Na, Mg and Cu metals are taken in three different test tubes and \[CuS{{O}_{4}}\]solution is added in each test tube, we will find that displacement reactions will take place in the following manner: \[CuS{{O}_{\mathbf{4}}}\]Solution Metals Displacement reaction Na Displacement reaction Mg No reaction Cu This shows that Cu is the least reactive metal. Order of decreasing reactivity: \[Na>Mg>Cu\].
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