Xfisss ayudaa :-( una solución de salmuera que tiene una concentración de 5%m/v, posee:
5g de sal en 95g de agua
5g de sal en ml de agu
50g de sal en 950ml de agua
50g de sal en 1000l de agua
100g de sal por cada litro de agua

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.

The graph indicates the running route for tobias. which best describes his run? from time 0 to 6, he went fast and then slowed down. from time 6 to 10, he was at his slowest. from time 12 to 14, he went very slow. from time 14 to 18, he went toward the starting point.

How many distinct monochlorinated products, including stereoisomers, can result when the alkane below is heated in the presence of cl2? 3 4 5 6 7?