Consider the formation of the three solutions shown in the table.

Type of Interaction Strength of Interaction
Solution A Solution B Solution C
solute-solute weak weak strong
solvent-solvent weak strong strong
solute-solvent strong strong weak

Rank the formation of the solutions A, B, and C from the most exothermic to the most endothermic. Rank the enthalpy of solution from most exothermic to most endothermic. To rank items as equivalent, overlap them.

C3h8o3 - glycerol major species present when dissolved in water

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.

In 2002, the rare earth elements mine in mountain pass, california was closed because