True or false questions from 1-20

Modified True/False Indicate whether the statement is true or false, 1. The algebraic sum of the positive and negative oxidation numbers of the atoms in a polyatomic ion is zero. 2. Reduction processes always result in a decrease in the oxidation number of a species. 3. When an atom loses an electron during a redox reaction, its oxidation number increases. 4. When an atom loses an electron in a redox reaction, it is acting as an oxidizing agent. 5. In redox reactions, metals always behave as reducing agents. 6. In a redox table, the strongest reducing agent is at the bottom left side of the table. 7. A spontaneous redox reaction occurs only if the oxidizing agent is above the reducing agent in a table of relative strengths of oxidizing and reducing agents. 8. The strongest reducing agent present in an electric cell always undergoes an oxidation at the cathode. 9. The electrolytic cell potential, A., is always positive 10. The strongest oxidizing agent present at the cathode of an electrolytic cell undergoes a reduction 11. The strongest reducing agent present at the cathode of an electrolytic cell undergoes an oxidation 12. Electroplating is a process in which a pure metal is deposited on the anode of an electrolytic cell. 13. Electrolysis of molten sodium chloride using inert electrodes produces chlorine at the cathode and sodium at the anode 14. Electrolysis is the process by which electrical energy is passed through a molten ionic compound to cause a nonspontaneous reaction to occur. 15. To produce one mole of copper by the electrolysis of CuSO(a) requires the same amount of electric charge 16. To produce one mole of aluminum by the electrolysis of AI(NO3)3() requires three times the amount of electric charge as the production of one mole of silver from AgNO3(e) 17. The electrolysis of water produces twice as much volume of hydrogen gas at the cathode as oxygen gas at the anode. 18. Electrolysis is used in electroplating, and in refining of metals 19. When water is electrolyzed, the products, Hac) and 024), possess less potential energy than the reactant, Howy 20. In a silver-plating cell, the object to be plated is made the anode, a