Specify whether CF4 is polar. Match the correct word in the left column to the blanks in the sentence on the right.

The C−F bond is and using the Lewis structure the dipole moments sum to dipole moment. Therefore the molecule is .

polar

no net

nonpolar

a net

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.

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?

Which substance can be broken down by chemical means