Draw a diagram showing the reaction that occurred when Pb²⁺ was mixed with S²⁻ during the lab activity. Reactant #1 is Pb(NO₃)₂ and Reactant #2 is Na₂S. Label all of the ion spheres and polyatomic ion clusters in your drawing; as shown above.

The reaction of 1,2 -diphenylcyclobutadiene (generated in situ by oxidation of its iron tricarbonyl complex) with p-benzoquinone yields adduct 1-A as the exclusive product. A completely analogous structure is obtained using maleimide as the dienophile. However, with the more reactive dienophiles tetracyanoethylene and dicyanomalemide, two isomeric adducts of type 1-B and 1-C are found in a 1:7 ratio in each case. Discuss these results and explain how they relate to the issue of a square versus a

The following diagram shows the combination reaction between - Brown 14th Edition Ch 3 Problem 2b