Name the method of collection of gas or by which method the gas is collected.
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Name the method of collection of gas or by which method the gas is collected.
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A gas produced in a chemical reaction can be collected by water displacement. Because the gas is collected over water, it is not pure but is mixed with vapor from the evaporation of the water. Dalton's law can be used to calculate the amount of the desired gas by subtracting the contribution of the water vapor.Answer:
Explanation. The method for preparing and collecting a gas less dense (lighter) than air by heating solid reactants. The less-dense gas extends into, and displaces, the more dense air downwards. This method of gas preparation is called upward delivery or displacement.