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Unformatted text preview: explain at least two reasons why this may have happened to her. 1) She might have not got all of the zinc out. 2) All of the water might not have evaporated. 3. As zinc was present in excess, you should have observed some unreacted zinc. Compute the moles of zinc that actually reacted to give you the copper you recovered. .049 mol zn .012 mol Cu 4. List the type of reaction (i.e. Decomposition) observed in each of the following steps of the procedure in this experiment. (Your textbook may be helpful here.) Procedure Step Number Type of Chemical Reaction 2 Double replacement 3 Combustion 4 Double replacement 5 Single replacement...
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- Spring '08