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Chemical Baggies Lab Report

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Background: The Chemical Baggies Lab demonstrated to students how certain chemicals cause diverse chemical or physical changes depending on what substances were mixed together in a designed controlled experiment. During the process of this experiment, almost identical observations were made about different combinations of chemicals that had at least one substance in common. For example, the frequent observation that was made throughout the experiment was that heat was felt. Even though there were distinct chemical combinations, there was one substance that generated a certain observation or characteristic, such as a mixture has to comprise of the phenol red for there to be a color change, which was learned from this lab. Also, calcium chloride …show more content…

After these two substances, the one measure teaspoon of calcium chloride and sodium bicarbonate, are in opposing corners of the baggie, measure five milliliters phenol red solution using the pipet and place the baggie flat on a horizontal surface. Then, a hand must be placed parallel to the “zipping part” of the baggie, creating a blockade off the substances but leaving the part with the ziploc open and accessible. Slightly angling the part of the baggie where it can be sealed upwards and keeping the hand firm on the bag as a blockade, slowly pour the five mL of phenol red solution into the baggie while not moving the hand, which is blocking the liquid from making contact with the substances. Tightly zip and seal the bag shut and carefully mix the three substance thoroughly. Using the five sense, record any observations, such as sound, sight, smell, taste, and touch. Repeat steps 1-8 replacing the chemical substances that were mixed together in the first baggie with one teaspoon of calcium chloride, ½ a teaspoon of sodium bicarbonate, and five mL of tap water (obtained with the 100 mL …show more content…

The chemicals that should be mixed together include: 1 teaspoon of calcium chloride, ½ teaspoon of sodium bicarbonate, and 5 milliliters of tap water. Heat was felt. The color of the liquid was a pasty white, and there was white foam that began to form. The foam began to spread out and then it shrank. The combination of substances maintained the state of a liquid. There was a fizzing noise after the chemicals were mixed. No recognizable odor given off. These substances mixed together caused a chemical change. The chemicals that should be mixed together include: 1 teaspoon of calcium chloride and ½ teaspoon of sodium bicarbonate. The solid was chalky white and felt powdery. There were small chunks, about the size of a carpenter ant, found within the powder. The combination of substances maintained the state of a liquid. There were no noticeable changes occurring. No audible sound. No recognizable odor given off. These substances mixed together caused a physical change. The chemicals that should be mixed together include: 1 teaspoon of calcium chloride and 5 milliliters of phenol red

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