Al mezclar 13.5 g de NaOH con 56.8 g de agua se obtiene una disolución cuya densidad es de 1.15 g/mL. Determina el % m/v de la disolución resultante.

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.

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

What human activity increases beach erosion?