Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 3 Chemical Reactions - Study Questions: 73

Answer

See answer below.

Work Step by Step

a) $K_2CO_3(aq)+2\ HClO_4(aq)\rightarrow 2\ KClO_4(aq)+H_2O(l)+CO_2(g)$ Gas-forming reaction. Names from left to right: Potassium carbonate, perchloric acid, potassium perchlorate, water, carbon dioxide. Net ionic equation: $CO_3^{2-}(aq)+2\ H_3O^+(aq)\rightarrow 3\ H_2O(l)+CO_2(g)$ b) $FeCl_2(aq)+(NH_4)_2S(aq)\rightarrow FeS(s)+2\ NH_4Cl(aq)$ Precipitation reaction. Names from left to right: Iron (||) chloride, ammonium sulfide, iron (||) sulfide, ammonium chloride. Net ionic equation: $Fe^{2+}(aq)+S^{2-}(aq)\rightarrow FeS(s)$ c) $Fe(NO_3)_2(aq)+Na_2CO_3(aq)\rightarrow FeCO_3(s)+2\ NaNO_3(aq)$ Precipitation reaction. Names from left to right: Iron (||) nitrate, sodium carbonate, iron (||) carbonate, sodium nitrate. Net ionic equation: $Fe^{2+}(aq)+CO_3^{2-}(aq)\rightarrow FeCO_3(s)$ d) $FeCl_3(aq)+3\ NaOH(aq)\rightarrow Fe(OH)_3(s)+3\ NaCl(aq)$ Precipitation reaction. Names from left to right: Iron (|||) chloride, sodium hydroxide, iron (|||) hydroxide, sodium chloride. Net ionic equation: $Fe^{3+}(aq)+3OH^{-}(aq)\rightarrow Fe(OH)_3(s)$
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