What Makes A Powder?

Equipment- 250mL beaker, 125mL Erlenmeyer flask, cardboard square, chemical scoop, metric ruler, lab countertop, rubber stoppers, safety goggles, lab apron

The materials that were used/needed in this experiment were a penny, water, soap, rubbing alcohol, a pipet, and a beaker.

We were assigned mystery powder convertible which contained calcium carbonate, baking soda, and sucrose. We found out that the mystery powder had calcium carbonate because when it reacted with iodine it turned orange/brown. When calcium carbonate reacted with vinegar it had a fizzy-like reaction. It also reacted with hydrochloric acid and that caused it to bubble. When we tested the mystery powder it also turned orange/brown when we added iodine. Also when we added vinegar and it also fizzed like the calcium carbonate. Again when we added the hydrochloric acid it reacted exactly like calcium carbonate, lots of bubbles were made. We know that the calcium carbonate was in the mystery powder because it had similar reactions.

1) The materials: cup, gummy bear, triple beam balance, water, metric ruler, and pencil were utilized for the experiment.

After all materials were gathered, we then had to do five different tests to determine what the powder material does. The first test was to see what the powder materials do in water. We had to add a scoop of each of the common powders to an

The primary goal of this laboratory is to correctly identify an unknown substance. To achieve this task, one may use various tests that reveal both chemical and physical properties of a substance. By comparing the results of a known substance and the unknown substance, one may eliminate alternative possibilities and more accurately predict the undisclosed compound. Furthermore, by performing these tests, data can be collected and verified regarding chemical and physical properties of the unknown. Understanding the chemical properties of a known substance aids one’s understanding of the unknown based on comparative analysis of the results of the tests.

1 litmus paper, red - in bag 2"x 3", Copper (II) Carbonate in Vial, 1/2 Full

items presently in solid form in the lab kit or purchased separately for this laboratory

I believe mystery powder 14 is powdered sugar (sucrose). I was first able to eliminate both of the known flours, the cornstarch and the baking powder with a vinegar solubility test because the powder immediately fizzed and, after being stirred with a toothpick, dissolved. The powders I was able to eliminate either did not bubble or did not dissolve into the vinegar. Noting the physical properties, that the powder was a bright, opaque white that formed small clumps, I predicted that the powder was powdered sugar. To confirm my prediction, I performed three other tests. The heat test was consistent was powdered sugar, resulting in streams of smoke, a sweet smell, and a caramelization of the powder. The sodium hydroxide (NaOH) test further support

The materials that were used to carry out the experiments on the water samples were ten testing kits. We ran 10 tests on all

The Materials that were used to measure the experiment where a pen and paper to record the reactions of the subjects being tested, and the subjects themselves.

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By finding this quantitative data, the product and reactant masses can be found of the white powder without contaminating the white powder by putting it on the

A speck of wishing powder, by Stuart Baum. I think that Michael chose his imaginary friend to be a rhino because he felt safe around such a big animal that could protect him from anything. In the story, it says "you saved me, you saved me even though you knew I would stop believing" so obviously rhino cared about Michael's safety and would even risk his existence on earth for Michael, This would mean that Michael made him to protect him and to do anything to help him. Also maybe because he had a personality like a rhino because right at the beginning Micheal says “it’s not my fault rhino was the one who broke the swing, and I told them so but mother and father don’t believe me” Maybe the parents thought that he broke the swing because

Fill the molds, tamp 25 times, top off, and cover with a plastic bag to setup.