Question
Assign the oxidation numbers to each element in the following.Tell which element or ion is oxidized, reduced, and identify theoxidizing and reducing agents. 1. KClO3 (aq) -----> KCl (aq) +O2(g) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 2. H2SO4 (aq) -----> H2O(l) + SO2 (g) +O2 (g) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 3. HNO3(aq) -----> H2 (g) +H2 (g) + O2(g) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 4. Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 5. AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ Assign the oxidation numbers to each element in the following.Tell which element or ion is oxidized, reduced, and identify theoxidizing and reducing agents. 1. KClO3 (aq) -----> KCl (aq) +O2(g) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 2. H2SO4 (aq) -----> H2O(l) + SO2 (g) +O2 (g) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 3. HNO3(aq) -----> H2 (g) +H2 (g) + O2(g) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 4. Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 5. AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 3. HNO3(aq) -----> H2 (g) +H2 (g) + O2(g) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 4. Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 5. AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 3. HNO3(aq) -----> H2 (g) +H2 (g) + O2(g) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 4. Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 5. AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 4. Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 5. AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 4. Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 5. AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 5. AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______ 5. AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) Oxidized:_________ Reduced:_________ Ox.Agent:________ Red.Agents:______
Explanation / Answer
1) K+1Cl+5O3-6(aq) -----> K+1Cl-1 (aq) +O20(g) In the above reaction oxygen is oxidised and Cl isreduced. Ox. Agent : Cl Red. Agents: Oxygen 2) H2SO4 (aq) -----> H2O(l) + SO2 (g) +O2 (g) In the above equation S is reduced from +6 ox.state to +4. Oxygen is oxidized from -2 to 0. Ox. Agent : S Red. Agents: Oxygen 3) HNO3(aq)-----> N2 (g) + H2 (g) +O2(g) In the above equation N is reduced from +5 ox.state to 0. Oxygen is oxidized from -2 to 0. Ox. Agent : N Red. Agents: Oxygen 4) Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) In the above equation N is reduced from +5 ox.state to +2. Sulfer is oxidized from -2 to 0. Ox. Agent :N Red. Agents: Sulfer 5) AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) In the above equation Cl is reduced from +5ox .state to -1. Again Cl is oxidized from +5 to +7. Ox. Agent : Cl Red. Agents: Cl Ox. Agent : S Red. Agents: Oxygen 3) HNO3(aq)-----> N2 (g) + H2 (g) +O2(g) In the above equation N is reduced from +5 ox.state to 0. Oxygen is oxidized from -2 to 0. Ox. Agent : N Red. Agents: Oxygen 4) Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) In the above equation N is reduced from +5 ox.state to +2. Sulfer is oxidized from -2 to 0. Ox. Agent :N Red. Agents: Sulfer 5) AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) In the above equation Cl is reduced from +5ox .state to -1. Again Cl is oxidized from +5 to +7. Ox. Agent : Cl Red. Agents: Cl In the above equation N is reduced from +5 ox.state to 0. Oxygen is oxidized from -2 to 0. Ox. Agent : N Red. Agents: Oxygen 4) Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) In the above equation N is reduced from +5 ox.state to +2. Sulfer is oxidized from -2 to 0. Ox. Agent :N Red. Agents: Sulfer 5) AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) In the above equation Cl is reduced from +5ox .state to -1. Again Cl is oxidized from +5 to +7. Ox. Agent : Cl Red. Agents: Cl Ox. Agent : N Red. Agents: Oxygen 4) Ag2S (s) + HNO3(aq)-----> AgNO3 (aq) + NO (g) + S (s) +H2 (l) In the above equation N is reduced from +5 ox.state to +2. Sulfer is oxidized from -2 to 0. Ox. Agent :N Red. Agents: Sulfer 5) AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) In the above equation Cl is reduced from +5ox .state to -1. Again Cl is oxidized from +5 to +7. Ox. Agent : Cl Red. Agents: Cl In the above equation N is reduced from +5 ox.state to +2. Sulfer is oxidized from -2 to 0. Ox. Agent :N Red. Agents: Sulfer 5) AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) In the above equation Cl is reduced from +5ox .state to -1. Again Cl is oxidized from +5 to +7. Ox. Agent : Cl Red. Agents: Cl Ox. Agent :N Red. Agents: Sulfer 5) AgNO3 (aq) + NaClO3(aq)-----> AgCl (s) + AgClO4(aq) + NaNO3 (aq) In the above equation Cl is reduced from +5ox .state to -1. Again Cl is oxidized from +5 to +7. Ox. Agent : Cl Red. Agents: Cl In the above equation Cl is reduced from +5ox .state to -1. Again Cl is oxidized from +5 to +7. Ox. Agent : Cl Red. Agents: Cl Ox. Agent : Cl Red. Agents: Cl