The reaction of aluminum with bromine is shown here. the equation for the reaction is
2 al(s) + 3 br2(ℓ) n al2br6(s)
1. what are the stoichiometric coefficients in this equation?
(a) 1, 3, 4 (b) 2, 3, 1 (c) 1, 6, 8 (d) 1, 1, 1

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.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

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