A chemical plant produces ammonia using the following reaction at high temperature and high pressure. Which issue are plant engineers and
investors most likely to see as a drawback of this method?
3H2 + N2 = 2NH3 + energy
A. This reaction system will solidify at a higher temperature and
obstruct the equipment.
B. The high temperature will increase the rate of the reactant-favored
reaction at equilibrium.
C. The high pressure will increase the rate of the reactant-favored
reaction at equilibrium.
D. Maintaining a high temperature will require burning fossil fuels or
using a great deal of electricity.

List four observations that indicate that a chemical reaction may be taking place

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.

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.