Multiple ChoiceWhat happens when concentrated HNO3 is mixed with gold (Au) at room temperature?82views
Multiple ChoiceIn the redox reaction between hydrogen peroxide (H2O2) and iodide ions (I-), forming iodine (I2) and water (H2O), what is the oxidizing agent?276views
Multiple ChoiceWhich metal can be oxidized by a Pb^{2+} solution but not by a Cd^{2+} solution?47views
Multiple ChoiceIn an oxidation-reduction (redox) reaction, what happens to atoms involved in the reaction?48views
Multiple ChoiceWhich type of equation can represent the oxidation occurring in a redox reaction?51views
Multiple ChoiceWhich of the following molecules provides electrons to the electron transport chain in cellular respiration?308views
Multiple ChoiceIn the disproportionation reaction Cl2(g) → Cl−(aq) + ClO−(aq), which element undergoes both oxidation and reduction?90views
Multiple ChoiceHow many photons are required to fully reduce one molecule of NADP+ to NADPH in photosynthesis?384views
Multiple ChoiceIn the redox reaction: Zn(s) + Cu^{2+}(aq) → Zn^{2+}(aq) + Cu(s), which compound is oxidized?49views
Multiple ChoiceGiven the redox reaction: Zn + Cu^{2+} → Zn^{2+} + Cu, which of the following correctly separates the reaction into its oxidation and reduction half-reactions?56views