- No reaction occurs when the copper wire is placed in a solution of ZnCly. A red-brown sold formda blue solution color fades when Zn is placed into CusO4 . Calclum dissolves instantaneously in cold water. • Magnesium does not dissolve in cold water but requires the addition of 3M HC to dissolve. • Zinc requires concentrated HCI to dissolve. Copper does not dissolve in concentrated HCI • Particles of shiny solid appear when metallic Zn or Cu wire was placed in a solution of AgNO, O Ag > H2 > Cu > Zn > Mg > Ca O Mg Ca Zn H2 > Cu > Ag O Ca » Mg Zn H2 Cu Ag O Ag > Cu > Zn > H2 Mg Ca H2 > Ca > Zn > Mg > Cu > Ag O Ca Zn Mg Cu > Ag > H2

Q: 1. Determine the oxidation state of the element other than oxygen in each of the following. Mn04-…

A:

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: What type of reaction is this? 2 AGNO3 + Cu --> Cu(NO3)2 + 2 Ag What type of reaction is this? Pb +…

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Q: Which metal cation is the best oxidizing agent?a. Pb2+ b. Cr3+ c. Fe2+ d. Sn2+

A: Solution-  Best oxidizing agent will be species with largest reduction potential.

Q: (Mn) + (O2) + (2H+) => (Mn^2+) + (H2O2)  In the above reaction, the oxidation state of manganese…

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Q: Use the oxidation method to balance the following reactions. a) IO3- (aq) + HSO3- (aq) SO42- (aq) +…

A:

Q: Write balanced formation equations for the following, indicate proper states:…

A: we have to balance these two equations: _______________ → N2O3(g) _______________ → C2H3F(g)

Q: Write a balanced chemical equation for the synthesis reaction of Cl2(g) with each metal. Zn(s)…

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Q: Select all of the solid metals that will react with a Co(NO3)2 aqueous solution.. O Ag O Mg ONI O Al…

A: Answer: More reactive metal has the tendency to displace less reactive metal from its compound,…

Q: Oxidation number of Cr in K2Cr207 is

A: Compound = K2Cr2O7  Potassium (K) has +1 charge. Let x is the oxidation number of Cr

Q: What is the oxidation state of each element in Mn(Cro, ),? Cr Mn

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Q: An unknown metal, x, was placed in a solution of CuCl2(aq) and black solid appeared on the metal.…

A: The reactivity series is a series of metals, in order of reactivity from highest to lowest. It is…

Q: For a particular redox reaction Cr is oxidized to CrO4 and Fe is reduced to Fe Complete and balance…

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Q: Major Entities present in Cu(s) a) Cu(s), H2O(l) b) Cu2+(aq), H2O(l)

A: To answer: Major Entities present in Cu(s) a) Cu (s), H2O (l) b) Cu2+ (aq), H2O (l)

Q: What is the oxidation number of Fe in: FeOOH Fe2O3 Fe3O4

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Q: 7. Consider the following reaction at equilibrium for the questions below: Zn (s) + Cu2+ (aq)  Zn2+…

A: Oxidation is the loosing of electrons and reduction is the gaining of electrons. Who give electron…

Q: Question six

A: Reduction of Nickel (II) oxide to Nickel Metal:

Q: 15. What are the two possible oxidation numbers for tin? Why?

A: The possible oxidation state of Tin is given below

Q: Balance the following redox reactions using the half reaction method in acidic solution. a.…

A: The process consist of a stepwise complete mechanism. One thing which is notable that electrons…

Q: What is the oxidation state of Ti in TiO2? Group of answer choices 2- 2 4 0 4- 2,

A: "Since, you posted multiple questions . So, we will solve the first question for you. If you want…

Q: 22. Use the oxidation states method to balance the reaction: _ So,2- (aq) + Fe2+ (aq) + _H* (aq) _…

A: We have to balance the given equation

Q: When barium peroxide is reacted with dilute sulphuric acid, an aqueous solution of hydrogen peroxide…

A: The balanced equations are BaO2 (s) + H2SO4 (aq) -------> BaSO4 (s) + H2O2 (aq) 2 MnO4– (aq) + 5…

Q: a. The neutralization of sulfuric acid by potassium hydroxide. b. The reaction between aluminum…

A: While balancing a chemical reaction we make sure that both the reactant and product side have the…

Q: Which reagent is capable of oxidizing Cu to Cu2+ but does not oxidize Au to Au3+ ?

A: The substance that has higher electrode reduction potential acts a good oxidizing agent  for the…

Q: Why does the fracking chemical Acetic Acid prevent precipitation of iron?

A: Fe3+(aq) is precipitated as Fe(OH)3 under basic conditions.  The equilibrium reaction for the…

Q: What is the oxidation number of Mn in: MnO2

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Q: -g is a stronger reducing agent (easily oxic

A: We have to write given statement is right or wrong

Q: Silver tarnish is the result of the oxide on the silver surface reacting with hydrogen sulfide (H2S)…

A: (a) Balanced chemical equation for the reaction is given below.

Science behind corrosion-test

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.

Corrosion

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.