In the mitochondria of human cells, energy is provided by the
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- . 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_forwardSome 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_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
- Many 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_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_forwardUsing 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
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