CHEM 1000 Lecture Notes - Lecture 3: Atomic Theory
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Document Summary
Sections 2. 1-2. 6 (law of: conservation of mass, definite proportions, multiple. Ideas of the atom has changed over time. Law of conservation of mass: matter is neither created nor destroyed during a chemical change. Mass of the products = mass of the reactants. Law of definite proportions: a compound always contains the same elements in certain definite proportions. Law of multiple proportions: elements may combine in more than one set of proportions, with each set corresponding to a different compound (h2o; h2o2) Avogadro"s # (6. 022 x 1023) = 1 mole.
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