The reason as to why technicians shouldn’t use oxygen or
compressed air in pressurizing appliances in cases of checking leaks because
when this is mixed with the compressor oil or other refrigerants, this will
likely cause explosion because of the oxygen or compressed air mixed to it.
Anion is created when electrons are lost.
If the scientist repeats the experiment over and over and gets the same results. Also if the scientist peer reviews the experiment to make sure there is no bias in his or her results.
D) gas to a solid because the particles are slowing down and there not colliding with each other