18=5x+2y-8

How do you solve

What is the number of valence electrons in each of the main groups on the periodic table?

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The data below were collected for the following reaction at 500 ∘C: CH3CN (g) →CH3NC (g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.

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