Chemistry (4th Edition)

Published by McGraw-Hill Publishing Company
ISBN 10: 0078021529
ISBN 13: 978-0-07802-152-7

Chapter 15 - Questions and Problems - Page 706: 15.8


(a) $$2H_2S(g) \leftrightharpoons 2H_2(g) + S_2(g)$$ (b) $$2NClO_2(g) \leftrightharpoons 2NO_2(g) + Cl_2(g)$$ (c) $$Hg^{2+}(aq) + 4I^-(aq) \leftrightharpoons HgI{_4}^{2-}(aq)$$ (d) $$2NOBr(g) \leftrightharpoons 2NO(g) + Br_2(g)$$

Work Step by Step

We know that: $$Q_c = \frac{[Products]}{[Reactants]}$$ Therefore, we know all the compounds in the reaction. - To get the balance coefficient, see the exponent of the compound's concentration in the Qc expression.
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