What happens when Ammonia reacts with hydrochloric acid? Answer: Ammonia reacts with hydrochloric acid to produce white fumes of ammonium chloride. NH3 + HCl = NH4Cl
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What happens in mild and incomplete combustion and complete combustion of carbon with air? Answer: Mild and incomplete combustion of carbon with air i.e. if the amount of O2 is insufficient, carbon monoxide (CO) gas is produced. 2C + O2 = 2CO Complete combustion of carbon with air, i.e., when the amount of O2 is
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What happens when you pour water into lime? Answer: When water is poured into quick lime (calcium oxide), a lot of heat is generated and a hissing sound is heard. It reacts with lime water to form slaked lime (calcium hydroxide). CaO + H2O = Ca(OH)2
Can dilute hydrochloric acid solution be kept in a copper container? Answer: Dilute hydrochloric acid does not react with copper. So mild hydrochloric acid can be kept in a copper vessel.
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Answer: When zinc powder is added to a yellow-coloured ferric chloride solution mixed with hydrochloric acid, the newly formed hydrogen produced by the reaction of zinc and hydrochloric acid oxidizes the ferric chloride to produce colourless ferrous chloride. FeCl3 + [H] = FeCl2 + HCl
Answer: Heating a mixture of potassium nitrate and concentrated sulfuric acid at 200°C produces potassium hydrogen sulfate and nitric acid. KNO3 + H2SO4 = KHSO4 + HNO3
What happens when burning carbon is placed in concentrated nitric acid? Answer: When burning carbon is placed in concentrated nitric acid, the carbon is oxidized to CO2 gas and HNO3 is reduced to nitrogen dioxide (NO2). C + 4HNO3 = CO2 ↑ + 4NO2 ↑+ 2H2O
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What happens when lead nitrate is heated? Ans: Heating lead nitrate produces lead monoxide, nitrogen dioxide and oxygen. 2Pb(NO3)2 = 2PbO + 4NO2 ↑ + 02 ↑
What happens when dilute hydrochloric acid is added to silver nitrate solution? Answer: The addition of dilute HCl to the silver nitrate solution forms white precipitation of insoluble silver chloride and nitric acid is obtained. AgNO3 + HCl = AgCl ↓ + HNO3
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What happens when dilute H2SO4 is added to the barium chloride solution? Ans. The addition of a dilute H2SO4 to barium chloride solution gives a white precipitate of insoluble barium sulfate. BaCl2 + H2SO4 = BaSO4 ↓ + 2HCl
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