<span>A method of processing coal to remove contaminants by mixing coal in a solution of potassium permanganate in a selected concentration range, rinsing the coal, mixing the coal in a solution of ammonia hydroxide in a selected concentration range to cause the solution to be brought into contact with the surfaces and pores of the coal, discharging the processed coal from the second reaction vessel, monitoring the process to detect when the concentration of aqueous ammonia in the second reaction vessel has fallen below the selected range, and feeding aqueous ammonia solution with an ammonia concentration in or above the selected range to the second reaction vessel to return the solution to within the selected range.</span>
Answer:
As the religious leader of the Egyptians, the pharaoh was considered the divine intermediary between the gods and Egyptians. Maintaining religious harmony and participating in ceremonies were part of the pharaoh's role as head of the religion.
Explanation:
Answer: See explanation.
Explanation:
Because Astronomers have well-tested theoretical models that explain how a star evolves over the course of its life as well as well-tested theoretical models that explain how a star evolves over the course of its life.
Answer:
The cold front is to the west of Dallas.
Explanation:
The curved line with triangles on the map represents a cold front, and the direction of the front is indicated by the way the triangles are pointing.
The cold front is most likely to affect Dallas in the coming hours and will probably bring rain, wind, and possibly thunderstorms to the Dallas area. After the passage of the cold front, the pressure will rise and the temperature will drop. The wind will now be out of the northwest.
The predictions are no always exact because some winter cold fronts can bring snow and not all cold fronts generate thunderstorms.
