Answer: D. A buildup of mostly methane gas, which is pontentially explosive.
Explanation:
Firedamp refers to a gas mixture, largely methane, that appear in underground coal mines. It is explosive at concentrations between 5 and 10% in the air.
Essential amino acids
Amino acids are the molecules that make up proteins when they are linked up. There are certain essential amino acids, namely they are <span>histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
All of these must be obtained from one's diet. If they are not, the body will use existing proteins, such as muscle mass, to obtain them.</span>
Answer:
CaCl2=1
KCl=3
Explanation:
CaCl2 has a very high heat of solution hence it is best at melting ice. It is better than all the other salts mentioned. Its dissolution in water produces a lot of heat which melts the ice.
Answer:
I think that you want no, of moles
Explanation:
no, of mole of this amount= 15/44 = 0.341 mole
Answer:
<em>Electrons in each orbital contain a set quantity of energy.</em>
Explanation:
<em>As long as an electron remains in the same orbital, the energy content of that electron remains constant. Electrons can move between orbits by releasing or absorbing energy.</em>
