Dirty Job Lab

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It’s a Dirty Job Lab….
Last week, I received a sample with the label May 17 main 17 floor and we were determined to find the identity of that sample. I conducted experiments and discovered that my sample contains a mixture of substances (powder) from container A, C, D, and F.
In order to uncover the identity of my sample and to prove that my theory is right I did several experiments. Firstly, I made careful observation of the physical properties of my sample and compared it to all of the substances from containers A, B, C, D, E, F, G, H, I, and J given to us. For this purpose, I looked at the color, appearances, and texture. Next I wrote down my observations and noticed that each container displayed a different color. Both A and B were white color and powdery, C was white and granulated, D had a brownish yellowish color and granulated, E was between bluish and blackish and looked like small rocks, F was black to greenish and looked similar to pencil shavings, G and H were white and powdery, I was silver and its shape was comparable to a small ball, and finally J was brown with a blackish color. Afterward, I compared those physical properties with my sample and it appeared that container D had the same exact color as my sample. I concluded that my sample contains substance D. …show more content…
I added 5 drops of vinegar in my sample and observed a reaction. The sample fizzled. This was the reaction that I expected, and it is a chemical reaction. Furthermore, I put 5 drops of vinegar in all of the substances from the containers and none of them fizzled except for powder A. Afterward, I immediately knew that powder A was in my sample because of the fizzling reaction that occurred after dropping vinegar. But that didn’t stop me there, I had to know my hypothesis was correct. At this point I knew that substance A and D were present in my

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