while in the other, 2 electrons are acquired by 2 silver ions: \[\ce{2e^{-} + 2Ag^+ -> 2Ag}\label{3} \]. Nevertheless, it is still meaningful to call this a redox reaction. &\textrm{oxidation: }\ce{Cu}(s)\ce{Cu^2+}(aq)+\ce{2e-}\\ Answered: A 21.5 g sample of nickel was treated | bartleby Canceling the spectator ions gives the net ionic equation, which shows only those species that participate in the chemical reaction: \[2Ag^+(aq) + Cr_2O_7^{2-}(aq) \rightarrow Ag_2Cr_2O_7(s)\label{4.2.3} \]. Magnesium undergoes oxidation at the anode on the left in the figure and hydrogen ions undergo reduction at the cathode on the right. The oxidizing agent, because it gains electrons, is said to be reduced. Accessibility StatementFor more information contact us atinfo@libretexts.org. Information about the anode is written to the left, followed by the anode solution, then the salt bridge (when present), then the cathode solution, and, finally, information about the cathode to the right. So far, we have always indicated whether a reaction will occur when solutions are mixed and, if so, what products will form. When aqueous solutions of silver nitrate and potassium dichromate are mixed, silver dichromate forms as a red solid. Accessibility StatementFor more information contact us atinfo@libretexts.org. Replace immutable groups in compounds to avoid ambiguity. 6: Types of Chemical Reactions (Experiment - Chemistry LibreTexts You need the molecular weights of them: \[\begin{align} 2AgNO3 + Ni -> 2Ag +Ni(NO3)2 NiCl2 + AgNO3 = Ni(NO3)2 + AgCl - Chemical Equation Balancer Solved Silver nitrate reacts with nickel metal to produce - Chegg half-equation \(\ref{9}\) is a reduction because electrons are accepted. Electrodes that do not participate in the oxidation-reduction reaction but are there to allow current to flow are inert electrodes. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Frequently, the electrode is platinum, gold, or graphite, all of which are inert to many chemical reactions. From the information given, we can write the unbalanced chemical equation for the reaction: \[\ce{Ba(NO_3)_2(aq) + Na_3PO_4(aq) \rightarrow Ba_3(PO_4)_2(s) + NaNO_3(aq)} \nonumber \].
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