Which of the following metals do not react with hot aqueous acid? a) Ag b) Mg c) Ca d) Zn

Q: Which set of elements gives each of the following alloys: (a) brass; (b) stainless steel; (c)…

A: Which set of elements gives each of the following alloys: (a) brass; (b) stainless steel; (c)…

Q: place the following metals from most active to least active. Ag, Cu, Mg, Pb, Zn

A: Question a five metallic element Ag, Cu, Mg, Pb, Zn is given.  We have following metals from most…

Q: Y4 is the form of EDTA that effectively chelates metals in solution. O True O False

A: EDTA stands for Ethylenediamine tetraacetic acid. It is a chelating agent that binds to the metal…

Q: diffrentiate between cast iron and pig iron.

A: Extraction is the process in which a metal is extracted from its ore. Cast iron and pig iron are…

Q: 13. Which of these substances are used in the reduction of metal ores? I. CO II. С III. O2 IV. H2 a)…

A: Pyrometallurgy Extraction of concentrated metals from its ore. In earth crust the metals found in…

Q: When a strip of Mn is placed in a solution of Cr(NO3)3 , a deposit of chromium metal forms and…

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Q: 1. When 1.164 g of a certain metal sulfide was roasted in air, 0.972 g of the metal oxide was…

A: #Q.1: Both sulfide(S2-) and oxide(O2-) have same charge of -2. The charge on the unknown metal(M) is…

Q: Among Fe, Cu, Al and Pb, which metal (s) can not be obtained by smelting.

A: The arrangement of metals according to their decreasing order of reactivity is termed as reactivity…

Q: Which would NOT protect iron from corrosion? Electroplating with Zn Attaching to Ni Electroplating…

A: 1) The zinc coating serves as physical protection which prevents rust and corrosion. 2) Nickel…

Q: Determine the time required to deposit 5.25 g of silver on a surfacefrom a silver nitrate solution…

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Q: Elemental gold is being recovered by electrodeposition from a solution with tiny amounts of Au(III).…

A: The electrode position uses electrical current to deposit a desired metal on any surface. The amount…

Q: What is the oxidation number of the Chromium atom in K2Cr2O7?

A: Oxidation number is the number of electrons gained or lost by an element.

Q: Use the table 'Standard Reduction Potentials' located in the Tables', to predict if a reaction will…

A: The reactants given are Pb metal and Fe2+ solution.

Q: 29.Identify which describes the oxidation process and which describes the reduction process. Then…

A: “Hey, since there are multiple questions posted, we will answer first given question. If you want…

Q: Please write the reactions of Zn, Fe and Cu metals with HCl and H2SO4 acids.

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Q: Draw the structure of MnO2

A: Molecular geometry is the 3-D representation of the molecule in a space. As the Lewis model is not…

Q: A. Determine the oxidation state of the metal ion in  [Fe(CN)6]4−. B. Determine the coordination…

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Q: Use the table 'Standard Reduction Potentials' located in the "Tables', to predict if a reaction will…

A: The reactants given are Ni metal and Cr3+ solution.

Q: which of the following is not asssociated with the surface extraction of coal. 1.  Low death rate…

A: which of the following is not asssociated with surface extraction of coal is given below .

Q: What is happening to the iridium in this reaction ? Ir(CO3)2 + Fe → Ir + Fe(CO3)3 A. oxidation B.…

A: Oxidation is loss of electrons. Reduction is gain of electron.

Q: Explain if coarse grain steel can be carburized?

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Q: ore acidic a

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Q: what is the oxidation number of oxygen atoms in MnO2?

A: The oxidation number is zero for the summation of the oxidation numbers complete atoms in a complete…

Q: Which one of these metals reacts with an acid to produce hydrogen gas? Hg, Cr, or Pt?

A: We can solve this problem by knowing the activity series of metals.  The most reactive  metal can…

Q: A. Determine the oxidation state of the metal ion in [PdCl4]2− B.Determine the coordination…

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Q: How much silver was in the solution if all the silver was removed as Ag metal by electrolysis for…

A: Applying Faraday law  W= Zit

Q: Which of the following elements is most likely to be used to prepare La by the reduction of La2O3:…

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Q: What factors determine which reducing agent is selected for producing a specific metal?

A: The reactions in which oxidation and reduction happen simultaneously are called redox reactions.…

Q: Describe the effects of adding Cr to steel and give a use for chromium–steel alloys.

A: The effects of adding Cr to steel are :It strongly increases the hardness and toughness of steel.It…

Q: The metals Mg and Al, like most metals in groups 1A, 2A, and 3A of the periodic table, cannot be…

A: Less-reactive metal such as iron may be extracted by reduction with carbon or carbon monoxide. The…

Q: What is the oxidation number of the chromium atom in K2Cro4?

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Q: What would you use to prove that copper is reduced in the following reaction? Fe)+CaSO → FeSO (46)…

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Q: What is chrome plating or electroplating? Briefly explain how this process works.

A: The chrome plating can provide corrosion resistance and helps in easing the cleaning procedures. It…

Q: Use the standard reduction potentials located in the "Tables' linked above to calculate the standard…

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Q: What process is used commercially to make nitric acid? O Ostwald process Downs cell Water gas shift…

A: We will discuss all the processes in option to answer this question.

Q: Which of the following acids would be capable of reacting with a silicate (SiO2) mineral? A) HF B)…

A: silicon dioxide generally Known as silicate not easily reactive with acids in normal conditions but…

Q: Use the table 'Standard Reduction Potentials' located in the 'Tables', to predict if a reaction will…

A: The standard reduction potential values to be used are: Cr3+(aq) + 3e-   ----> Cr(s) ; Eo = -…

Q: Chrome is plated from solutions of chromium(III) ions. If a particular application requires 13.7g of…

A: Given : Mass of Cr produced = 13.7 g And time = 90 min = 90 X 60 = 5400 s…

Q: Assign the oxidation number of the chrome in Cr₂(SO4)3 a. O b. -0.5 C. +3 d. -1

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Q: Which of the following metals is ferromagnetic?   a. Copper   b. Nickel   c. Lead   d. Gold…

A: Ferromagnetism is a special type of paramagnetism in which the materials are strongly attracted to a…

Q: What quantity of energy, ΔH, can be obtained from roasting of 35g of zinc sulfide ore? ZnS(s) +…

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Q: Use the table 'Standard Reduction Potentials' located in the 'Tables', to predict if a reaction will…

A: The potential, via which the tendency of a species to gain electrons from an electrode or to lose…