Which absorbance wavelength is responsible for the observed purple color? 2) What purpose does the base serve in this reaction? What is the name of the intermediate that it generates? Can this reaction proceed without adding base? 3) Suppose instead of using dibenzylacetone we used benzophenone. Would this reaction work? Why or why not. 4) This reaction was carried out in ethanol. Provide a specific reason why this experiment would not work well if carried out in hexanes.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.