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isotopes are sister atoms of same element with similar chemical properties but different
cadmium has isotopes
atomic masses of elements were determined by
what is the mass of one mole of Iodine molecule.
in combustion analysis CO2 is absorbed in
the collection of Avogadro no of [articles represent
CO+ is an example of
which of the following has the max num of moles
-%of O2 in H2O is
the SI unit of measurement of quantity is
what quantity of limestone CaCO3 on heating will give 56kg of CaO
how many moles of hydrogen occupy 22.4dm3of Volume at S.T.P are
the largest number of molecules in
the %of o2 in NaOH is
which of the following has least mass