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Exploring the properties of gases lab report answers

15/10/2021 Client: muhammad11 Deadline: 2 Day

Lab Experiment - Gases

Name:__________________

College Chemistry I – Chem. 1806

Lab Report 7 assignment

1. Complete the following data table. (10 points)

Data Table 1

Step/Reaction

Observations

Reaction between zinc and hydrochloric acid

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Hydrogen gas + Flame

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Reaction that occurs when magnesium is in contact with hydrogen peroxide

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Oxygen gas + Smoldering toothpick

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Gas mixture + Flame

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2. Complete the following data table. (10 points)

Data Table 2

Step/Reaction

Observations

Reaction between Ca(OH)2 and CO2

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Reaction between CO2 and BTB

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Carbon Dioxide Gas + Flame

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Reaction between Ca(OH)2 and Alka-Seltzer + water gas

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Alka-Seltzer/water gas + smoldering toothpick

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Reaction between Ca(OH)2 and breath

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3. What gas was produced between the reaction of hydrochloric acid and zinc? Name the gas and write the balanced chemical equation for this reaction. (2 points)

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4. What gas was produced by decomposition of hydrogen peroxide? What happened when the smoldering toothpick came in contact with the gas? (2 points)

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5. Did the reaction between Alka-Seltzer and the tap water produce hydrogen, oxygen, or carbon dioxide gas? Support your answer with results from your work in Exercises 1 and Exercise 2. (2 points)

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6. Based on your observation of the reaction that occurred when limewater was exposed to your breath, what gas did you exhale? Support your answer with the observations you made in Data Table 2. (2 points)

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7. When the bromothymol blue (BTB) was exposed to the carbon CO2 gas, what color was the solution? Did the BTB indicate the presence of an acid or base? Explain your answer. (2 points)

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8. Imagine writing a lab report about this lab. Write an introduction and conclusion for this lab. (10 points)

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