●1. what is the density of 2.0 g of a substance that has a volume of 5.0 ml?

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.

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added