Thankyou....?
what are the redox reactions, carthode and anode labeled of the following: a) duracell AAA 1.5v...
7) A study comparing different types of batteries showed that the average lifetimes of Duracell Alkaline AA batteries and Eveready Energizer Alkaline AA batteries were given as 4.5 hours and 4.2 hours, respectively. Suppose these are the population average lifetimes. a Let X be the sqmple average lifetime of 150 Duracell batteries and Y be the sample average lifetime of 150 Eveready batteries. What is the mean value of X-Y (i.e., where is the distribution of X-Y centered)? How does...
What is Ecell (in volts) for a concentration cell at 25.0°C based off the redox reactions of X(s) / X2+ (aq) with the following conditions? Express your answer to 3 decimal places. At both the anode and cathode the metal X is dipped in solutions containing X2+. [X2+] (at the cathode) = 1.857 mol L-1 [X2+] (at the anode) = 0.004 mol L-1
Which of the following components of the light dependent reactions is NOT involved in redox reactions? a. Electron Transport Chain b. P680 c. P700 d. ATP synthase e. All of these are involved in redox reactions Can you explain your reasoning and what they mean by redox reactions?
Identify if the following reactions are redox reaction or not. If they are redox reactions. specify what is oxidized and what is reduced. a. Cu(OH)2(s) + 2HNO,(aq) Cu(NO3)2(aą)+ 2H20() b. Fe203(s) +2C0(g)- 2Fe(s) + 3co (9)
Identify whether or not (yes or no) the following are redox reactions. a. combination reactions b. decomposition reactions c. single-replacement reactions d. double-replacement reactions e. acid-base reactions f. combustion reactions 2. What is the identifying feature of a redox reaction? 3. What is the oxidation number of a. Mn b. Br – c. Cl in ClO3– d. each element in CNO– (all elements double bonded in this order)
Redox and Non-Redox
Reactions
Redox and Non-Redox Reactions For each of the following reactions, answer: True or False? -- "This is an oxidation-reduction (redox) reaction." C Au(s) + 3HNO3(aq) + 4HCl(aq) + HAUCl4(aq) + 3NO2(g) + 3H20 (1) AgBr(s) + 2Na2S2O3(aq) - Na3Ag(S203)2(aq) + NaBr(aq) 4Br2(aq) + H2S2O3(aq) + 5H20(1) - 8HBr(aq) + 2H2SO4(aq) 2H2CrO4(aq) —+H2Cr2O7(aq) + H20(1) 3H20(1) + P4(s) + 3KOH(aq) — 3KH2PO2(aq) + PH3(g) Cao(s) + CO2(g) + CaCO3(s) Hg2Cl2(s) + 5HNO3(aq) → 2Hg(NO3)2(aq) + HNO2(aq) +...
2. Are the following reactions redox reactions? If so, identify what is reduced, what is oxidized, the oxidizing agent and the reducing agent. a. 2CuO + 2Cl2 + 2CuCl2 + O2 b. 3 NaBr + CuN → CuBr3 + Na3N
6. Which of the following is true of anaerobic reactions? a. they are all redox reactions c. they occur in the presence of oxygen b. they are never redox reactions d. they occur in the absence of oxygen 7. How many ATP molecules are produced as a result of the complete metabolism of one molecule of glucose in the heart or liver? b. 24 c. 36 d. 38 a. 12
What is the anode of the voltaic cell made by the combination of following half reactions? Reaction Standard Reduction Potential Zn2+ + 2e– → Zn E0 = –0.76 V Ag+ + e– → Ag E0 = +0.80 V Question options: a. Zn2+(aq) b. Ag+(aq) c. Ag(s) d. Zn(s)
Select all of the following that are true in regards to redox reactions. Question 6 options: Oxidation occurs at the cathode of a galvanic cell. An oxidizing agent is needed to convert CO into CO2. If a species is oxidized, it is formally losing electrons. Electron flow is always from the anode to the cathode in an electrochemical cell. If there are no changes in the oxidation state of the reactants or products of a particular reaction, that reaction is...