Answer:
The excitation energy
Explanation:
Excitation energy is the energy needed move an electron from a lower energy level (usually the ground state) to one of higher energy (an excited state).
I believe that the best answer among the choices provided by the question is <span>he shape of molecules the three dimensional shape or configuration of a molecule is an important characteristic. this shape is dependent on the preferred spatial orientation of covalent bonds to atoms having two or more bonding partners.</span>
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By adding catalyst e.g. mno2,vanadium oxide
by increasing the temperature if it is an exothermic reaction
by also decreasing if it is an endothermic reaction
The seas and atmosphere as they existed on earth before the existence of life, consisting primarily of an oxygen-free gaseous mixture containing chiefly water, hydrogen, methane, ammonia, and carbon dioxide.
a laboratory preparation containing the substances believed to have composed primordial soup, and used in experiments seeking to understand the origin of life.
