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Atoms And Molecles (Atom (Atomic Mass (Average Mass of atom is compared to…
Atoms And Molecles
Atom
Building blocks of matter
Size of Hydrogen Atom = 10 raised to -10
Atomic Mass
Average Mass of atom is compared to carbon i.e.12
Molecules
Elements
Compounds
Ratio
Ion
-ve charge Anion
+ve Charge Cataion
Molecular Mass and Mole Concept
Molecular mass = addition of umass of elements
Unit Mass = Ca + (2Cl)
Laws of Chemical Combination
Law of Conservation of Mass
Law of Constant Proportions
Writing chemical Formula