determination of hardness, Chemistry

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Silver has a density of 10.5gcm -3 . The no. of silver atoms on a surface area of 10-12m 2 can be expressed in scientific notation aas y x 10x.The value of x is ..? Ans) d = m

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Isomers, which vary in the rotation of the plane polarized light, are known as Optical Isomerism.

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