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Passage Students Were Asked to Bring Items from Home to Serve

Question 47

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Passage
Students were asked to bring items from home to serve as examples for different types of reactions.  The instructor provided additional reactants, solvents, heat, or a catalyst to demonstrate reactions with the household items.The students brought aluminum foil, table salt, sugar, baking soda, vinegar, toilet bowl cleaner, hydrogen peroxide, and antacid tablets.Experiment 1Reactions were performed using the household items.  The reaction conditions and student observations are recorded in Table 1.Table 1  Reaction Conditions and Visual Observations
Passage Students were asked to bring items from home to serve as examples for different types of reactions.  The instructor provided additional reactants, solvents, heat, or a catalyst to demonstrate reactions with the household items.The students brought aluminum foil, table salt, sugar, baking soda, vinegar, toilet bowl cleaner, hydrogen peroxide, and antacid tablets.Experiment 1Reactions were performed using the household items.  The reaction conditions and student observations are recorded in Table 1.<strong>Table 1</strong>  Reaction Conditions and Visual Observations Experiment 2The reactions that were observed to produce gas bubbles in Experiment 1 were repeated, and samples of the gases produced were collected.  Each gas sample was tested by holding a burning (glowing) wooden splint within the reaction vessel to determine if the reaction evolved O<sub>2</sub>, H<sub>2</sub>, or CO<sub>2</sub>.  A glowing splint placed in O<sub>2</sub> will burn more brightly, one placed in H<sub>2</sub> will ignite the gas, and one placed in CO<sub>2</sub> will be extinguished.  The results of the gas tests are recorded in Table 2.<strong>Table 2</strong>  Glowing Splint Gas Test Observations -When 2 g of aluminum foil is added to 500 mL of the CuCl<sub>2</sub> solution indicated in Table 1, the following reaction takes place:2 Al(s) + 3 CuCl<sub>2</sub>(aq) → 2 AlCl<sub>3</sub>(aq) + 3 Cu(s) The limiting reactant is: A) aluminum. B) copper. C) copper(II) chloride. D) aluminum chloride. Experiment 2The reactions that were observed to produce gas bubbles in Experiment 1 were repeated, and samples of the gases produced were collected.  Each gas sample was tested by holding a burning (glowing) wooden splint within the reaction vessel to determine if the reaction evolved O2, H2, or CO2.  A glowing splint placed in O2 will burn more brightly, one placed in H2 will ignite the gas, and one placed in CO2 will be extinguished.  The results of the gas tests are recorded in Table 2.Table 2  Glowing Splint Gas Test Observations
Passage Students were asked to bring items from home to serve as examples for different types of reactions.  The instructor provided additional reactants, solvents, heat, or a catalyst to demonstrate reactions with the household items.The students brought aluminum foil, table salt, sugar, baking soda, vinegar, toilet bowl cleaner, hydrogen peroxide, and antacid tablets.Experiment 1Reactions were performed using the household items.  The reaction conditions and student observations are recorded in Table 1.<strong>Table 1</strong>  Reaction Conditions and Visual Observations Experiment 2The reactions that were observed to produce gas bubbles in Experiment 1 were repeated, and samples of the gases produced were collected.  Each gas sample was tested by holding a burning (glowing) wooden splint within the reaction vessel to determine if the reaction evolved O<sub>2</sub>, H<sub>2</sub>, or CO<sub>2</sub>.  A glowing splint placed in O<sub>2</sub> will burn more brightly, one placed in H<sub>2</sub> will ignite the gas, and one placed in CO<sub>2</sub> will be extinguished.  The results of the gas tests are recorded in Table 2.<strong>Table 2</strong>  Glowing Splint Gas Test Observations -When 2 g of aluminum foil is added to 500 mL of the CuCl<sub>2</sub> solution indicated in Table 1, the following reaction takes place:2 Al(s) + 3 CuCl<sub>2</sub>(aq) → 2 AlCl<sub>3</sub>(aq) + 3 Cu(s) The limiting reactant is: A) aluminum. B) copper. C) copper(II) chloride. D) aluminum chloride.
-When 2 g of aluminum foil is added to 500 mL of the CuCl2 solution indicated in Table 1, the following reaction takes place:2 Al(s) + 3 CuCl2(aq) → 2 AlCl3(aq) + 3 Cu(s) The limiting reactant is:


A) aluminum.
B) copper.
C) copper(II) chloride.
D) aluminum chloride.

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