One industrial, large-scale method for refining iron ore to elemental iron is the reaction at high temperatures with carbon monoxide. Calculate AGº for the reaction of iron(III) oxide with carbon monoxide to give elemental iron and carbon dioxide. Use data in the table below.

Given Zn(s) and AL(s), what observations would you make when combining AL(s) with ZnSO4(aq), and combining Zn(s) with Al(SO4)3(aq)?

Given that tin is higher than copper on the activity series of metals, write the one & only possible balanced chemical equation for a redox single replacement reaction that should take place in a reaction between TWO of the following substances: Sn(s); Cu(s); Sn(NO3)2; CuCl2(aq). Also: A solid forms in the reaction. What do you think or what is the solid?

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Balance the reaction of copper plus nitrate to yield copper (II) and nitrogen dioxide.  This reaction occurs in acidic solution.     Cu  +  NO3-   ------->    Cu2+   +   NO2     Cu(NO3)2   +  4 H+-------->  Cu   +   2 NO2   +   2 H2O     2 Cu2+   +   4 H2O   +   2 NO2  -------->  Cu   +   2 NO3-   +   8 H+     10 HCl   +   5 Cu   +   2 NaNO3  -------->   5 CuCl2   +   2 NaNO2   +   2 H2O     Cu   +   4 H+   +   2 NO3-  -------->  Cu2+   +   2 NO2   +   2 H2O

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2. Lead (II) sulfide is the principle source of lead metal. To obtain the metal, the sulfide is first heated in air to produce PbO. PbS + 3/20,e - PbO + SO2) AH = -415.4 kJ (s) (8)7 The oxide is then reduced to the metal with carbon. PbO + C - Pb + CO (s) Calculate AH for the reaction of one mole of PbS with oxygen and carbon, forming lead, sulfur AH =+108,5 kJ (s) dioxide and carbon monoxide.

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When magnesium metal is added to a beaker of HCl(aq), a gas is produced. Knowing that magnesium is oxidized and that hydrogen is reduced, write the balanced net equation for the reaction. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.) Help chemPad XXº → Greek How many electrons are transferred in the balanced equation? What quantity of useful work can be obtained when Mg is added directly to the beaker of HCI? kJ How can you harness this reaction to do useful work? This is accomplished by making ---Select--- produce a voltage. cell that ---Select--- the reduction reaction and the oxidation reaction in order to control the flow of ---Select--- through a wire to