Which of the following happens when a reaction reaches dynamic equilibrium in a closed system? the concentrations of the reactants and products increase. the concentrations of the reactants and products remain constant. the rate of the forward reaction is faster than the rate of the reverse reaction. the rate of the forward reaction is slower than the rate of the reverse reaction.

The concentration of the reactants and products remain constant!

Explanation: remember that a dynamic equilibrium is a state of balance in which the rates of the forward and reverse reactions are equal, and they continue to occur at an equivalent and constant rate with the same amount of product and reactants!

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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