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I had to find 5 unknown solutions in a recent chem lab and now I am doing the equations, but im not sure about two of them:Deep blue percipitateNH3 (aq) + CuSO4 (aq) -------> Cu(NH3)4 SO4 (s)brown heavy percipitate4NaI (aq) + 2CuSO4 (aq) -------> 2CuI (s) + I2 (s) + 2Na2SO4 (aq)Are these reactions correct? I got percipitates for both of them.