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- What volume of 0.250 M H2SO4 solution is required to neutralize a solution that contains 5.00 g of CaCO3?6 .. C. Reactivity of metals: 1. Observations (Indicate whether the reaction occurred, the vigor, extent and speed): Al Cu Zn a. No reaction b.No reaction Cu is least reactive Al,(SO.); then Al2 therefore Cu is not able to displace Al from solution C. 3Cu+Al,(SO,)3 d.Cu + ZnSO4 Al is more reactive CuSO, than Cu thus Al displaces Cu in solution eAl,(SO,), + Zn f.No Reaction ZnSO, i. h. g. H,SO, not ionic equation for the reactions above.predict the reactions c) Br2 hv d) HO Br