Module 2c

Module 2c - part oxygen by volume Daltons Atomic theory...

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Definite Proportions Systematic studies of compounds lead to the earliest atomic theory John Louis Proust Decomposition of CuCO3 always yields the same elemental products in the same definite proportions source is irrelevant Law of definite proportions Chemical compounds always contain the same elements Always in the same proportions Berzelius - If you put more than is proportionally needed you will have an excess of that item. Electrolysis of water Passing direct current through H2O always produces two parts hydrogen and one
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Unformatted text preview: part oxygen by volume Daltons Atomic theory Accounted for cases like CO and CO2 from C and O2 Composition of matter All matter is composed of indivisible atoms so small that they cant be seen Now know that atoms consist of subatomic particles like protons, neutrons and electrons quarks and gluons) Each element has unique atoms All atoms of an element have the same weight and are unique to that element Atoms are immutable Chemical reactions leave atoms unchanged....
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This note was uploaded on 04/04/2008 for the course CHM 2083 taught by Professor Mari during the Spring '08 term at FAU.

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