We've all heard of acid rain and its impact on the environment, the infrastructure, like roads and buildings, and on humans. If basic rain was a commonly occurring form of
precipitation, what impact do you think it would have on the environment, the
infrastructure, and on humans? Would it be more detrimental than or not as detrimental
as acid rain? Explain your reasoning.

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

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 moles are in 43.9 l of oxygen