3 years ago

What two elements do not need eight valence electrons to stay stable?

Chemistry

1 answer:

coldgirl [10]3 years ago

7 0

Hydrogen and helium because they only have one electron shell and it only holds up to two electrons in it.

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What is Keq for the reaction N₂ + 3H2 = 2NH3 if the equilibrium

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The Keq for the reaction N₂ + 3H2 = 2NH3 if the equilibrium concentrations are Keq = 1.5. The correct option is D.

Keq is the ratio of the concentration of reactant to the concentration of the product.

The balanced equation is

N₂ + 3H₂ = 2NH₃

The equilibrium constant is $\rm \dfrac{[NH_3]^2}{[N_2]\; [H_2]^3}$

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Thus, the correct option is D. Keq = 1.5.

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An atom of which element has the strongest attraction for electrons in a chemical bond?

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