


ICSE /Class 9
Chemistry MCQ Based On Atomic weights and molecular weights
Our free online Chemistry test quiz for Class 9, ICSE will assist you to improve your Chemistry skills on every concept in a fun interactive way.



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ICSE Class 9 Chemistry Atomic weights and molecular weights
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Think about molecular mass!!
Think about atomic mass.
Molecular mass of CO2 = Molecular mass of carbon + 2 (Molecular mass of oxygen) { 2 atoms of oxygen are present)
weight
It is equal to the sum of the atomic masses of all atoms present in one molecule of the substance.
Think about atomic mass!!!
Atoms and molecules
The relative mass of a molecule is expressed as atomic mass units
Think about Atomic and Molecular mass
The molecular formula of water is H2O which means that one molecule of water contain 2 atoms of hydrogen and 1 atom of oxygen.

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