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Sathiyan S · Answer 1 · 2021-12-28T17:43:10+0000

Step-by-step explanation:

oxygen gas is collected bye the downwards displacement of water. because it is only slightly solube in water and is less dence than water. this is my answer

Reza Toghraee · Answer 2 · 2022-01-02T02:38:00+0000

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.

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