Post-lab Problems 1. Reactivity between 2 metals can be determined by observing which metal can (or can't) displace the other or if one metal reacts with a reagent and the other metal doesn't react with the same reagent. Each of the conclusions below can be made from an appropriate observation during the experiment. For each conclusion below, suggest an observation during the experiment that supports the conclusion. Your answer can be brief but be sure it clearly supports the conclusion. There may be more than one observation available. Observations for the first conclusion has been done as example. Cu metal is more reactive than Ag metal Cu wire reacted with Ag+ salt when added into the reaction container; or/also upon being heated up to dry, Cu reacted with O2 in the air to become CuO but Ag didn't Zn metal is more reactive than Cu metal Zn metal is more reactive than hydrogen from an acid Cu metal is less reactive than hydrogen from an acid 2. From the 4 conclusions provided in #1 above, arrange the elements Ag, Cu, H, and Zn in the order of decreasing activity/reactivity. 3. CuO is black, ZnSO 4 is white. If the CuO obtained at the end of experiment had some white specks in it, likely there was ZnSO 4 left due to incomplete washing. How would such an error affect the experimental percent of Ag? Experimental percent of Cu? Assume in each case this was the only error in the experiment. Effect on experimental % of Ag ___________________. Explain Effect on experimenta