Multiple ChoiceWhich balanced equation represents a redox reaction (i.e., involves a change in oxidation numbers)?2views
Multiple ChoiceWhich of the following equations represents a redox reaction (a reaction in which oxidation numbers change)?2views
Multiple ChoiceWhich of the following chemical reactions is an oxidation-reduction (redox) reaction?1views
Multiple ChoiceWhich of the following is an example of reduction (as defined by a decrease in oxidation number)?2views
Multiple ChoiceWhich element is being reduced in the following reaction? Cr2O72- + 3 HNO2 + 5 H+ → 2 Cr3+ + 3NO3- + 4 H2O3092views5rank3comments
Multiple ChoiceIdentify the oxidizing agent and reducing agent from the following redox reaction. Ba (s) + Cl2 (g) → BaCl2 (aq)4107views12rank1comments
Multiple ChoiceWhich element is oxidized and which is reduced in the following reaction?Hg (aq) + HgCl2 (aq) → Hg2Cl22914views8rank1comments