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Laboratory Preparation of Oxygen Gas 的热门建议
Preparation of Oxygen
in Laboratory
Laboratory Preparation of
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Preparation of Oxygen
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Hydrogen
Laboratory Preparation of
Nitrogen Gas
Production of Oxygen
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Preparation of Oxygen
in Laboratory
Laboratory Preparation of
CO2
Lab
Preparation of Oxygen
Laboratory Preparation of
Hydrogen
Laboratory Preparation of
Nitrogen Gas
Production of Oxygen
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SOLVED: A common laboratory preparation of oxygen gas is by the thermal decomposition of potassium chlorate; KClO2 to give KCl and O2 as products. Write the balanced chemical equation for the reaction and calculate the grams of O2 obtained from 46.0 g of KClO2.Water is added to 25.0 mL of a 0.866 M KNO2 solution until the volume of the solution is exactly 500.0 mL. Calculate the final concentration of the solution.
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SOLVED: Testing Oxygen Gas Ignite a wooden splint: Open the first bottle of oxygen and slowly bring the splint near the mouth of the oxygen bottle in an attempt to ignite the oxygen gas as it diffuses from the bottle. Is oxygen itself flammable? Ignite a wooden splint in the burner flame. Blow out the flame, but make sure that the splint still shows some glowing embers. Insert the glowing splint deeply into a second bottle of oxygen gas. Obtain two bottles of air: (This is done by filling the bo
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Question 15The following reaction is used for the preparation of oxygen gas in the laboratory. 2KClO3sHeat→ 2KCl s 3O2gWhich of the following statements is are correct about the reaction?a It is a decomposition reaction and endothermic in nature.b It is a combination reaction.c It is a decomposition reaction and accompanied by release of heat.d It is a photochemical decomposition reaction and exothermic in nature.
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