Treatment of Cobalt (ll) Oxide with oxygen at high temperatures gives Co3O4. Write a balanced chemical equation for this reaction. What is the oxidation number of Cobalt in Co3O4?

Q: (a) What is the range of oxidation states shown by the ele-ments of Group 5A(15) as you move down…

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Q: a copper sample of mass 500g and purity 80% reacts with dilute nitric acid. a) Write the chemical…

A: Given that: Total mass of copper = 500g  The purity of copper = 80 % To find: chemical equation…

Q: The hydration reaction involving dicalcium silicate is as follows: 2CaO-SiO2 + 3H2O = 2CaO-SiO2-3H2O…

A: Given : Mass of 2CaO-SiO2-3H2O to be produced = 3000 Kg = 3 X 106 g…

Q: Explain and elaborate on what the synthesis methods of Cobalt(II) sulphate is and the types of…

A: Cobalt(II) sulphate can be synthesized by the reaction of cobalt metal with aqueous solution of…

Q: Write the overall balanced equation for cobalt (II) nitrate hexahydrate reacting with ammonium…

A: Given that, Cobalt (II) nitrate hexahydrate reacting with ammonium carbonate, concentrated ammonia,…

Q: What is the oxidation number of sulfur in Na2S2O5?

A: We know some Oxidation state like, Oxidation state of Oxygen = -2  Thus 5 oxygen means 5 x (-2) =…

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Q: Name the following compounds and assign oxidation states to the halogens in them: Ca1IO322

A: Ca(IO3)2 is called as calcium iodate

Q: What are the three ingredients used in a blast furnace to make iron? Which one of these is the…

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Q: Name the following compounds and assign oxidation states to the halogens in them HClO2

A: Oxidation states of halogens: HClO2,

Q: Describe the role of(i) NaCN in the extraction of gold from gold ore.(it) SiO2 in the extraction of…

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Q: During the refining of iron, carbon must be present in the blast furnace. Why is carbon necessary to…

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Q: Treatment of Cobalt (II) oxide with oxygen at high temperatures gives Co304. Write a balanced…

A: Write balanced reaction and determine the oxidation number of cobalt in Co3O4 ?

Q: What mass of CO2 is produced from the decomposition of 25.5 grams of NaHCO3?

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Q: Write the balanced equations for the following reactions (a) The reaction which leads to the…

A: Balanced chemical equation: A balance chemical equation is the reaction in which number of atoms of…

Q: Explain the action of TiO2 as a photocalyst during wastewater treatment

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Q: What is the importance and uses of pure cobalt(II) sulphate?

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Q: What is the function of manganese(IV) oxide in the thermal decomposition reaction of potassium…

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Q: How are the silica tetrahedrons linked for CaSiO3 ? Which class of silicates does this compound…

A: The given compound CaSiO3 is example of pyroxene. The main formula unit in it is SiO32-. The ionic…

Q: Write chemical equations for the following processes: (1) Reduction of VO2 + to produce VO2+ (2)…

A: Chemical equations: (1). Reduction of VO2 + to produce VO2+:

Q: Name the following compounds and assign oxidation states to the halogens in them: XeF4.

A: XeF4 is called as Xenon tetrafluoride.

Q: Describe the following :(i) The role of cryolite in electro metallurgy of aluminium.(ii) The role of…

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Q: Write the role of the following: (i) Iodine in the refining of zirconium (ii) Silica in the…

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Q: Basic physical properties of sulphate group minerals and economical use of these properties. Write…

A: Sulphate group minerals have sulphate ion (SO42-) in their structures. It occurs as gangue minerals…

Q: Write chemical equations for the following processes: (iv) Reduction of VO2+to produce VO2+ (v)…

A: iv) Since in VO2+ , V is in 5+ state and in VO2+ , V is in 4+ state Hence the reduction of VO2+ is…

Q: 1. Write a balanced equation for the reduction of Co;O3 by carbon monoxide. 2. Write a balanced…

A: The question is based on the concept of inorganic chemistry. we have to write the chemical equations…

Q: Treatment of cobalt(II) oxide with oxygen at high temperatures gives Co3O4. Write a balanced…

A: Given that the reaction of cobalt(II) oxide with oxygen gives Co3O4. To find: Balanced chemical…

Q: 6. Why would magnesium inhibit the formation of CaC2O4 crystals?

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Q: In Ethereum, what is the function of gas?

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Q: What are the processes used during the synthesis and purification of cobalt(II) sulphate (CoSO4.7H2O

A: Synthesis of cobalt(II) sulphate (CoSO4.7H2O): Cobalt(II) sulphate can be synthesized by the…

Q: What is the oxidation number of sulfur in Na2S2O3? O +2 O +6 O +12 O +4 O +3

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Q: Why is boron limited to a maximum coordination number of four in its compounds?

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Q: what are interhalogen compounds ?

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Q: How do I find the oxidation numbers for I2O5 ? what are they and how did you get there?

A: Given :- chemical formula = I2O5  To determine :- oxidation number of both I and O in I2O5

Q: Name the following compounds and assign oxidation states to the halogens in them: (a) KClO3

A: The given compound is KClO3 To find: Name of the given compound Oxidation state of the halogen

Q: What is the oxidation number of S in the compound Na₂S₂O₅?

A: compound Na₂S₂O₅ is a natural compound. For Na2S2O5 Na contributes +1 charge. O-atom -2 charge per…

Q: What are purification methods of Cobalt (II) Sulphate?

A: If purifying by electrolysis, an aqueous sulfate solution at 50 to 70°C is usually used with a lead…

Q: Another Group 14 (4) oxide has the formula Pbo. i Determine the oxidation state of lead in PbO and…

A: Given :- formula of group 14(4) oxide = PbO  To determine :- oxidation state of lead in PbO and…

Q: Write chemical equations for the following processes: (iv) Reduction of VO2+ to produce VO2+ (v)…

A: iv) Since in VO2+, V is in 5+ state and in VO2+, V is in 4+ state Hence the reduction of VO2+ is…

Q: Write chemical equations for the following processes: 1. Sublimation of carbon dioxide 2.…

A: In a chemical reaction; the substance which involves in conversion is said to be reactant whereas…

Q: Hydroxylamine 1NH2OH2 reduces copper(II) to the free metal in acid solutions. Write a balanced…

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Q: What is the role of (NH4)2HPO4? Give the balanced chemical equations for the reactions of Group IV…

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Q: Name the following compounds and assign oxidation states to the halogens in them XeF6

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Q: two reactions are necessary for the production of nitrogen dioxide. write the balanced equation for…

A: two reactions are necessary for the production of nitrogen dioxide. write the balanced equation for…