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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Representation of the Results of a Chemical Change – is a Chemical Equation. Answer the Following: Name the Reactants and the Products in the Above Equation. - Chemistry

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प्रश्न

Representation of the results of a chemical change – is a chemical equation.

For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓

Answer the following:

Name the reactants and the products in the above equation.

टीपा लिहा

उत्तर

Reactants:

Iron (III) chloride and ammonium hydroxide (i.e. FeCl3 and – 3NH4OH)

Products:

Ammonium Chloride and Iron (III) chloride (i.e. 3NH4Cl and Fe (OH3)]

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पाठ 5: Language of Chemistry - Exercise

संबंधित प्रश्‍न

Substitute formulae for names and balance the following equation:
Calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide gas.


Write word equation for the following skeletal equation:

\[\ce{KClO3 -> KCl + O2}\]


Write your observation for the following chemical reaction and name the product formed :

When manganese dioxide is added to potassium chlorate and heated.


Dry raisins were soaked in water for 2 hours, to determine the percentage of water absorbed by raisins. Before final weighing of swollen raisins, the extra water left on the surface of soaked raisins was removed by:


What information do the following chemical equations convey? Mg + 2HCl → MgCl2+ H2


Match column A with column B. 

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(a) Blue salt changes to white and then black (i) Ammonium dichromate
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(c) Red compound changes to brown and then yellow. (iii) Zinc Nitrate
(d) White to yellow when hot and white when cold. (iv) Copper sulphate
(e) Violet solid changes to violet vapours. (v) Red Lead

Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Electrical energy


\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]

State why the compound MnO2 is written above the arrow.


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Fe2O3  +  H2  → Fe  +  H2O


Complete the given chemical reaction.

\[\ce{CuSO_{4(aq)} + Fe_{(s)} ->}\]______ + ______


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