Which of the following is a balanced chemical equation for the synthesis of nabr from na and br2?
na + br2 —> nabr
2na + br2 —> nabr
na + br2 —> 2nabr
2na + br2 —> 2nabr

How many moles of n2 you have in 476 l sample at stp?

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 many valence electrons are in atom of radon?