Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
George S. Hammond wikipedia , lookup
Rate equation wikipedia , lookup
Ionic liquid wikipedia , lookup
Nanofluidic circuitry wikipedia , lookup
Physical organic chemistry wikipedia , lookup
Mössbauer spectroscopy wikipedia , lookup
Surface properties of transition metal oxides wikipedia , lookup
Electrolysis of water wikipedia , lookup
Chemistry 3202 1. 2. Oxidation Numbers Determine the oxidation number of the specified element in each of the following. a. N in NF3 b. S in S8 c. Cr in CrO42- d. P in P2O5 e. C in C12H22O11 f. C in CHCl3 Determine the oxidation number of each element in each of the following. a. H2SO3 b. OH- c. HPO42- Chemistry 3202 3. As stated in rule 4, oxygen does not always have its usual oxidation number of -2. Determine the oxidation number of oxygen in each of the following. a. the compound oxygen difluoride, OF2 b. 4. 5. Oxidation Numbers the peroxide ion, O22- Determine the oxidation number of each element in each of the following ionic compounds by considering the ions separately. a. Al(HCO3)3 b. (NH4)3PO4 c. K2H3IO6 Use oxidation numbers to determine whether each reaction is a redox reaction. a. H2O2 + 2Fe(OH)2 b. PCl3 3 H2O + H3PO3 2Fe(OH)3 + 3 HCl Chemistry 3202 Oxidation Numbers 6. Identify the oxidizing agent and the reducing agent for the redox reaction(s) in the previous question. 7. For the following balanced net ionic equation, use oxidation numbers to identify the reactant that undergoes oxidation and the reactant that undergoes reduction. Br2 + 2 ClO2- 2 Br- + 2 ClO2 8. Nickel and copper are two metals that have played a role in the economy of Newfoundland and Labrador. Nickel and copper ores usually contain the metals as sulfides, such as NiS and Cu2S. Do the extractions of these pure elemental metals from their ores involve redox reactions? Explain your reasoning.