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What is the formula for Iron oxide and copper chloride?

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Solution

Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe₂O₃. It is one of the three main oxides of iron, the other two being iron(II) oxide (FeO), which is rare, and iron(II,III) oxide(Fe₃O₄)

Copper(II) chloride is the chemical compound with the chemical formula CuCl₂

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Q. Write the formula of the following compounds.
calcium hydroxide, copper chloride, iron sulphate, sodium carbonate, copper nitrate, copper oxide, lead sulphide, magnesium chloride, zinc sulphate, potassium hydroxide.

Write the formulae for the following compounds:

Mercury(II) chloride

Nickel(II) sulphate

Tin(IV) oxide

Thallium(I) sulphate

Iron(III) sulphate

Chromium(III) oxide

Q. Write a balanced chemical equation with the help of chemical symbols and formulas for the following reactions:

(i) Zinc + Silver nitrate

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Zinc nitrate + Silver

(ii) Copper oxide + Hydrogen

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(iii) Barium chloride + Aluminium sulphate

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Barium sulphate + Aluminium chloride

Q. Give the equation for the preparation of each of the following salts from the starting material given.
(i) Copper sulphate from copper (II) oxide,
(ii) Iron (III) chloride from Iron.
(iii) Potassium sulphate from potassium hydroxide solution.
(iv) Lead chloride from lead carbonate (two equations).

What is the formula for copper (II) oxide?

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