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Chemistry IX | Matter-Its Nature and Behaviour: Mole Concept | Part 3
Matter-Its Nature and Behaviour: Mole Concept INTRODUCTION Atomic Mass · The average relative mass of an atom of an element as compared to the mass of an atom of carbon (C12) taken as 12. In other words atomic mass is a number which expresses as to how many times an atom of the element is…
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Chemistry IX | Matter-Its Nature and Behaviour | Part 2
Matter-Its Nature and Behaviour | Part 2 Compounds · A compound is a substance made up of two or more elements chemically combined in a fixed proportion by weight e.g., water, NaCl, NH4Cl and CO2, etc., Properties of Compounds · A compound cannot be separated into its components by physical methods. · The properties of…