Which colligative property is employed when coolant is added to a car's radiator to keep it from overheating? A)boiling point elevation
B)vapor-pressure lowering
C)freezing-point depression

What’s the scientific notation for the number 6,840,000,000

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.

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal