Question

in an experiment showing law of conservation of mass why it is neccesary to put a cork mouth of the flask

Answer 1

In an experiment showing law of conservation of mass it is necessary to put a fork on the mouth of flusk because

a cork is used to ensure that no reactant or product leaves the reaction system, and also no foreign substance enters the reaction system which could lead to errors in result. Hence, total mass of flask remains intact. It neither decreases nor increases.

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Answer 2

Natural resources are available in fixed quantity and they are non – renewable, 8. Natural resources are getting scarce with the increasing population, so it is essential to conserve them. This empowers us as well as our future generation to utilise the natural resources to the full extent.