Winds can bring higher temperature from a warm area to a cool area. What else can bring higher temperatures from a warm area to a cool area? a. Sunrise

b. Cloud cover

c. Precipitation

d. Ocean currents

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.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume