Name the method of refining of the following metals – (a) Hg (b) Sn (c) Cu (d) Ge (e) Ni (f) Zr

Q: Why is there no reaction between solid silver and copper (II) nitrate?

A: A more reactive metal displaces a less reactive metal from its solution and a reaction occurs. This…

Q: A 0.5962 g sample of iron ore is dissolved in perchloric acid (HClO4 ). All iron present is oxidized…

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Q: A typical sample of iron ore contains both Fe2+ and Fe3+ ions. The total amount of iron present in…

A: A numerical problem based on redox reaction, which is to be accomplished.

Q: How many amperes are required to deposit 0.136 grams of chromium metal in 627 seconds, from a…

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Q: you are given with (a) iron nail (b) cuso4 solution (c) bacl2 (d) cu powder (e) ferrous sulphate…

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Q: (b) MnO4 Element Oxidation Number Mn i i

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Q: Predict which of the following metals reacts with water at room temperature. (a) Ba. (b) Mn (c) Sn.…

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Q: (a) MnCl2 Element Oxidation Number Mn i CI i

A: Mn oxidation number : +2

Q: ) Balance the following (redox) chemical equations using the half-reaction method, assuming acidic…

A: a.) H2S(aq) + HNO3(aq) → S(s) + NO(g) + H2O(l) b.)  Fe2O3(s) + C(s) → Fe(s) + CO2(g) c.) MnO4-(aq) +…

Q: Assign an oxidation state to each atom in each compound. (a) NaCl (b) СaF> (c) SO2 (d) H2S

A: a). NaCloxidation state of Na = +1oxidation state of Cl = -1b). CaF2oxidation state of Ca =…

Q: a student carries out this chemical reaction in a beaker  Zn+CuCl2 -> Cu+ZnCl2 after the reaction…

A: A student carries out this chemical reaction in a beaker  Zn+CuCl2 -> Cu+ZnCl2 After the reaction…

Q: Iron nail clipped in a solution kept in a test tube. After half an hour it was observed that the…

A: Given solutions,    (a) Zinc sulphate   (b) Copper sulphate   (c) Iron sulphate   (d) Aluminium…

Q: The iron content of a mineral deposit was determined by titration with KMNO4 to see if it had enough…

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Q: Balance the following in the type of solution indicated.(a) H2 + Cu2+ ⟶ Cu (acidic solution)(b) H2 +…

A: We can say redox reactions are those chemical reactions which involves transfer of electrons takes…

Q: Assign the oxidation numbers of the atoms in the following compounds.  (a) Al2O3   (b) XeF4…

A: (a) Al2O3  2 x + 3(-2) =0 2x -6=0 X=3 Al=+3 O=-2 (b) XeF4 Xe + 4(-1) =0 Xe=+4 F=-1

Q: The iron content of iron ore can be determined by titration with a standard KMnO4 solution. The iron…

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Q: You are given with(a) Iron Nails(b) CuSO4 solution(c) Bacl2(d) Cu powder(e) Ferrous sulphate…

A: Given   The given materials are iron nails, CuSO4 solution, BaCl2, Cu powder, ferrous sulphate…

Q: Ores are analyzed by dissolving some of the ore and then performing an analysis of a metal…

A: The total mass of ore is 14.1960 g. The volume of titrant MnO4- added to reach endpoint is 35.32 mL.…

Q: A sample of 1.55g of iron ore is dissolved in a acid solution in which the iron is converted into…

A: Given : The titration reaction involves oxidation of Fe2+ to Fe3+ using MnO4- ions which is reduced…

Q: 0.376 g of iron ore sample is dissolved in acid and the iron in the ore is reduced to Fe²⁺ (in…

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Q: The oxidation number of Mn in MnO₂ is

A: The oxidation number of an element represents the charge density on the element which controls its…

Q: A sample of an iron ore is dissolved in acid, and the iron isconverted to Fe2+. The sample is then…

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Q: A 1.362 g sample of an iron ore that contained FegO4was dissolved in acid and all of the iron was…

A: Given that : Mass of iron ore sample = 1.362 g The molar mass of Fe3O4 is 231.5 g/mol

Q: (ii) The thermite reaction can be used to join railway tracks together. Aluminium is used in this…

A: Definition of redox reaction is, In redox reaction one species is oxidize and other is reduced.

Q: In the thermite process, the reducing agent is:(a) Nickel(b) Zinc(c) Sodium(d) Aluminium

A: Thermite welding is a process that makes use of an exothermic reaction to create a high temperature.…

Q: Assign an oxidation state to each atom in each compound. (c) SO2 (d) H2S

A: The oxidation state of each atom in the compound has to be provided.

Q: (c) OF2 Element Oxidation Number i F i

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Q: Balance each redox reaction using the half-reaction method. (a) K(s) + Cr³*(aq) –→ Cr(s) + K*(aq)…

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Q: lead + nickel (II) nitrate;Balanced chemical equation:Reaction type

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Q: 1. A sample containing magnetite, Fe;O4, was analyzed by dissolving a 1.5419-g sample in…

A: A numerical problem based on isolation of metals, which is to be accomplished.

Q: A 1.362 g sample of an iron ore that contained FezOawas dissolved in acid and all of the iron was…

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