In the mitochondria of human cells, energy is provided by the
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Basic Chemistry
- . For each of the following oxidation-reduction reactions of metals with nonmetals, identify which element is oxidized and which is reduced. a.4Na(s)+O2(g)2Na2O(s)b.Fe(s)+H2SO4(aq)FeSO4(aq)+H2(g)c.2Al2O3(s)4Al(s)+3O2(g)d.3Mg(s)+N2(g)Mg3N2(s)arrow_forwardAn equilibrium is established according to the following equation Hg22+(aq)+NO3(aq)+3H+(aq)2Hg2+(aq)+HNO2(aq)+H2O(l)Kc=4.6 What will happen in a solution that is 0.20 M each in Hg22+, NO3-, H+, Hg2+, and HNO2? (a) Hg22+ will be oxidized and NO3- reduced. (b) Hg22+ will be reduced and NO3- oxidized. (c) Hg22+ will be oxidized and HNO2 reduced. (d) Hg22+ will be reduced and HNO2 oxidized. (e) There will be no change because all reactants and products have an activity of 1.arrow_forwardWhat does it mean for a substance to be oxidized? The term “oxidation” originally came from substances reacting with oxygen gas. Explain why a substance that reacts with oxygen gas will always be oxidized.arrow_forward
- Some metals, such as iron, can be oxidized to more than one oxidation state. Obtain the balanced net ionic equations for the following oxidation reduction reactions, in which nitric acid is reduced to nitric oxide, NO. a Oxidation of iron metal to iron(II) ion by nitric acid. b Oxidation of iron(II) ion to iron(III) ion by nitric acid. c Oxidation of iron metal to iron(III) by nitric acid. [Consider adding the a and b equations.]arrow_forwardZinc react spontaneously with silver ion. Zn(s)+2Ag+(aq)Zn2+(aq)+2Ag(s) Describe a voltaic cell using this reaction. What are the half-reactions?arrow_forwardMany oxidationreduction reactions can be balanced by inspection. Try to balance the following reactions by inspection. In each reaction, identify the substance reduced and the substance oxidized. a. Al(s) + HCl(aq) AlCl3(aq) + H2(g) b. CH4(g) + S(s) CS2(l) + H2S(g) c. C3H8(g) + O2(g) CO2(g) + H2O(l) d. Cu(s) + Ag+(aq) Ag(s) + Cu2+(aq)arrow_forward
- Using Table 17.1, calculate E° for the reaction between (a) lead and silver nitrate ion to produce lead(II) nitrate. (b) oxygen and iron(II) ions to produce water and iron(III) ions. (c) sulfur and nitrogen oxide gas in basic solution to form nitrate and sulfide ions.arrow_forward. Balance each of the following oxidation-reduction reactions, which take place in acidic solution. a.MnO4(aq)+H2O2(aq)Mn2+(aq)+O2(g)b.BrO3(aq)+Cu+(aq)Br(aq)+Cu2+(aq)c.HNO2(aq)+I(aq)NO(g)+I2(aq)arrow_forward
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