An atom consists of an atomic nucleus composed of positively charged protons and neutral or uncharged neutrons.
The answer is C, the galaxies are moving farther away.
I believe the answer is C. E. And F.
A stands out most to me, CO comes from the air and air is basically oxygen we breath. When we exhale CO comes out (of course). I would say A is correct.
Answer:
C
Explanation:
A system is at equilibrium when the rates of opposing reactions are equal.
Answer A does not show the rate of reactions, it only shows concentrations of reactants.
Answer B only shows constants, it does not show rates of reactions.
