18. Oxidation-reduction reactions are also known as... a. electron-transfer reac

Question

18. Oxidation-reduction reactions are also known as... a. electron-transfer reactions b. proton-transfer reactions c. neutron bombardment reactions d. neutralization reactions e. double displacement reactions - 19. Identify the oxidation half-reaction in this redox equation Cu(s) + Chlg) Cu* + 2 Ch C. Cu=Cu2+ + 2 e. d. Cu + 2 e' = Cu2+ e. Cu+Cl2 + 2 e' = Cu2+ + 2 cr + 2 e. 20, what is the oxidation number of sulfur in sulfite ion, SO32? a. +6 b. +4 d. +2 1. what is the oxidation number of chlorine in its elemental form? a. c. +2 d. +7 e. zero _2. what is the oxidation number of titanium in TiO2? a. +4 b. +2 c. +6 e. zero

Explanation / Answer

18. E- double displacement reaction

19 C- Cu------> Cu2+ + 2e-

20. B - +4

21. A - -1

22 A - +4

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