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PROPERTIES OF MATTER AND THEIR MEASUREMENTS

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  PROPERTIES OF MATTER AND THEIR MEASUREMENT :- http://PROPERTIES OF MATTER AND THEIR MEASUREMENT All substances have unique or characteristic properties.Now,here we are going to study about properties of matter and their measurement . These properties can be classified into two categories - physical properties and chemical properties . PHYSICAL PROPERTIES OF MATTER :- PHYSICAL PROPERTIES OF MATTER "Physical properties are those properties which can be measured or observed without changing the identity or the composition of the substance." Some examples of physical properties are ;- color, odor, melting point, boiling point, density, etc. CHEMICAL PROPERTIES OF MATTER :- http://CHEMICAL PROPERTIES OF MATTER "Chemical properties, on the other hand, are those properties whose measurement or observation require a chemical chang...
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What is Chemistry ? - NCERT based Chemistry notes

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  BASIC CONCEPTS OF CHEMISTRY - What is Chemistry ? :- CHEMISTRY " chemistry is the science of molecules and their transformations. It is the science not so much of the one hundred elements but of the infinite variety of molecules that may be built from them. " Roald Hoffmann OR " Chemistry may be defined as the branch of science which deals with the study of matter ,its composition,its properties and the change which it undergoes in composition as well as in energy during various processes." In simple words we can understood it by the examples, that every thing around us is related to chemical science or chemistry. e.g.-pen, ink, furniture, human, animals, electronics, cloths, bags etc. everything made by group of atoms, molecules and compounds . Everything in this world have some composition.Here we can also understood the reactions by some daily life examples;-curd formation by milk,icing from water,fire ...
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