<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:
Through infrared radiation
HI there
the most reasonable answer is
saturation of surface materials with water
hope this has helped you
Answer:
Slavic people
Explanation:
Russia has a population of over 185 ethnic groups. Many people regard themselves as Russian or Tatars, while others classify themselves as Samis or Kets. All these groups had an influence on Russia's culture but the Slavic ethnic groups are the major ethnic group. The Slavic people are Indo-European people who speak the Slavs language. The Slavs are traditionally divided into two in terms of Religion namely Eastern Orthodox and Roman Catholic Church.
