<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>
<span>I'm not sure I
completely understand what the question is asking for. When I look at
the plates, it looks like they all fit together like a giant puzzle.
They separated due to tectonic plates shifting over hundreds of years.
This was based on the theory that there was a supercontinent (one giant
landmass). I'm not sure how much this helps, but I hope it does. Good
luck!!
</span>
Answer:
space
Explanation:
As air gets warm, the air molecules have more energy and move around more, taking up more space. As the warm air expands, it becomes less dense than the cold air, so rises up and floats above the cold air.
b. its businesses can invest in the future
Explanation:
just took the quiz on edge 2020
Extremely hot, forms in mantle, known as lava in surface, contains dissolved gasses
