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Answer:

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In celestial mechanics, escape velocity or escape speed is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a primary body, thus reaching an infinite distance from it.

Escape speed is the minimum speed with which a mass should be projected from the Earth's surface in order to escape Earth's gravitation field.

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• Formula - KHCO3
• There are 6 atoms in potassium carbonate.

Potassium bicarbonate is a chemical compound with the formula KHCO3. It is made up of a potassium cation (K+) and a bicarbonate anion (HCO³–).

KHCO3 is a monopotassium salt of H2CO3 (carbonic acid). Similar to sodium bicarbonate (baking soda), potassium bicarbonate is alkaline in nature. It is widely used as an antacid since it has the ability to neutralize gastric acid.

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Answer:

Formula - KHCO3

There are 6 atoms in potassium carbonate.

Info :-

Potassium bicarbonate is a chemical compound with the formula KHCO3. It is made up of a potassium cation (K+) and a bicarbonate anion (HCO³–).

KHCO3 is a monopotassium salt of H2CO3 (carbonic acid). Similar to sodium bicarbonate (baking soda), potassium bicarbonate is alkaline in nature. It is widely used as an antacid since it has the ability to neutralize gastric acid.

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Explanation:

Answer:

Therefore, the oxidation state of Sulphur in SO2 is +4.

Explaination:

(i) SO2

Oxidation state of S + (2 × Oxidation state of O) = 0

x + (2 × -2) = 0

x – 4 = 0

x = +4

Therefore, the oxidation state of Sulphur in SO2 is +4.

(ii) PbS

Oxidation state of Pb + Oxidation state of S = 0

+2 + x = 0

x = -2

Therefore, the oxidation state of Sulphur in PbS is -2.