Determine the energy of 2.00 mol of photons for each of the following kinds of light. (assume three significant figures.) you may want to reference (pages 299 - 308) section 7.2 while completing this problem. part a infrared radiation (1460 nm )

How are elements arranged in a periodic table

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins