Question

A solid ‘A’ on heating erupts in the form of volcano to form compound ‘B’ and two gases ‘C’ and ‘D’. ‘D’ if allowed to collect can be condensed to a colourless liquid . in this context, answer the following questions. [4] (i) Identify A,B,C & D (ii) Give balanced chemical equation for the reaction. (iii) What is the colour of ‘B’?


pls answer fast its urgent​

Answer 1

Answer:

1) A Feso⁴ (Ferrous Sulphate)

B Fe²O³ (Ferric Oxide)

C So². (Sulphur Dioxide)

D So³. (Sulphur Trioxide)

2) 2FeSo⁴→ Fe²O³ + So² + So³

3) It is reddish in colour.

Explanation:

For instance, think about the response: 2Mg(s)+O2(g)⟶2MgO(g) ,In this response, 2 particles of magnesium and oxygen is available on the two sides of the reactant and item side. consequently the substance response submits to the law of protection of mass so the synthetic response is a Fair compound condition.

A reasonable compound condition is a condition where the quantity of iotas of each kind in the response is similar on the two reactants and item sides. The mass, as well as the change, are equivalent in a fair synthetic condition. A fair condition contains similar number of each kind of iotas on both the left and right sides of the response bolt. To compose a decent condition, the reactants go on the left half of the bolt, while the items go on the right half of the bolt.

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Answer 2

Compound B, two gases C and D, and the solid A explode into a volcano-like eruption when heated. If allowed to gather, D can be condensed into a colourless liquid.

Answer: Sodium Bicarbonate (NaHCO3)

C: Calcium Carbonate (Na2CO3)

Carbon dioxide (C) (CO2)

D: Vapor Water (H2O)

(ii) The reaction's balanced chemical formula is 2 NaHCO3(s) Na2CO3(s) + H2O(g) + CO2 (g)

(iii) Sodium carbonate, sometimes known as B, has a white tint. When sodium bicarbonate is heated, it breaks down into carbon dioxide gas, water vapour, and sodium carbonate. A white, crystalline material called sodium carbonate is frequently used to make glass, soap, and detergents.

In conclusion, heating sodium bicarbonate (A) causes it to transform into sodium carbonate (B), two gases—carbon dioxide and water vapor—and heat (D). 2 NaHCO3(s) Na2CO3(s) + H2O(g) + CO2 is the reaction's balanced chemical equation (g). Sodium carbonate, often known as compound B, is a white, crystalline substance.

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