Question 5 (1 point) The principle of original lateral continuity states that sediments spread out in A directions until their either thin out or run into a barrier.

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

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.