A silver ring reacts with compounds containing sulfur in the air to form silver sulfide, a black substance that makes up the tarnish on the surface of silver objects. To remove the tarnish from the ring, students placed it in a pan lined with aluminum foil and added hot water. Baking soda was added to the hot water and stirred. Students made observations about the process. Which observation of this process provides evidence of a chemical reaction?
Question 4 options:
A Hot water heated the aluminum foil.
B The liquid solution changed color.
C The pan was lined with aluminum foil.
D The hot water cooled.
Answers: 3
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The suzuki reaction is an important coupling reaction for carbon. in a typical suzuki reaction, a vinyl or aryl halide is treated with an organoboron compound and a palladium catalyst under basic conditions. below are the four key steps to the suzuki reaction. order the steps from first to last by dragging the steps to the appropriate spots.
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