The Aluminum and Blue stuff lab reminds me of the copper and silver nitrate lab because both were very similar in terms of color change(tests) and chemical formulas. The Aluminum and Blue stuff lad started off with a light blue colored liquid. Where as the original copper wire lab ended with the light blue liquid. This was the same with the other beginning and ending colors. For the Aluminum lab there was a red spongy residue that was left over from the reaction. This is similar to the original copper wire lab because there was also a whitish-silver residue left over. I clearly saw that for the original copper wire lab, the only elements that were in the reaction were Silver Nitrate and Copper. The water in this lab was just used to dissolve the silver nitrate evenly around the test tube so that the copper could react. I later discovered that the whitish-gray chunks that were left behind from the reaction were silver particles. The reason I said this is because the chunks were not attached to the copper and were completely separate. I also justified this by referring back to the aluminum and blue stuff lab. For this lab, I found out that the chemical equation was 3CuCl+Al → AlCl3+Cu. At the beginning of this lab, aluminum was by itself and copper was with chlorine due to the fact that copper CANNOT dissolve in water. I later tested to see if copper was separated by getting the residue that was left over and burning it. It gave off a green flame when lit and that proved that it was copper due to the prior information we had. Copper was separate just like the silver in the copper wire lab. The copper wire lab consisted of Silver Nitrate, and Copper. Gathering up all the information, there was a possibility of two possible chemical balanced equations. AgNO3+Cu → CuNO3+Ag was one of the balanced chemical equations I focused on and used to refer back to other previous labs prior to this situation. The silver(Ag) in the copper wire lab is similar to the Copper(Cu) in the aluminum and blue stuff lab because they both were bonded with another element before and after were separated, causing a single replacement for both experiments.
Write a balanced chemical equation(s) for the copper and silver nitrate reaction?
AgNO3+Cu → CuNO3+Ag
At the beginning of the experiment, the Silver and the Nitrate were together and Copper was separated after. Then, the silver became separated and the Nitrate bonded with the copper.
How might you experimentally confirm your chemical equation in b?
The observations and measurements regarding this chemical equation helped me confirm that this is one of the two possible balanced chemical equations. Based on the previous tests i did with the Aluminum and Blue stuff lab and looking at the different similarities between both reactions, I figured out that silver and nitrate can clearly relate to the other elements used in the different labs (e.g. Aluminum and blue stuff). For example, both chemical equations consisted of a single replacement and once having and equation from one lab(Aluminum and blue stuff) I could figure out the other by looking back at the origins of the lab(what was being used to cause the reaction). In the water investigation lab, the battery charged the copper wires and caused the H2O molecules to separate. This is nearly the same with the Silver Nitrate and copper lab. The Silver Nitrate served as the battery and became separate- causing new bonds.
How does your answer to C help you confirm the chemical equation in b?
Due to the information that was in the lab packets prior to the reactions, I justified my reasoning based on those facts. For example, when I ran tests to see if copper was present in the red spongy stuff for the Aluminum and Blue stuff lab, I lit it on fire(as part of the process) and waited for it to turn green. Information regarding this test specifically told me that there would be green flames and would prove that the red sponge is copper. This was similarly the same with the chlorine. Tests were proven based on specific facts that corresponded to the tests after effects.
e.
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