1 Outline - Chemistry Chapter One Notes Chem= the study of...

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Chemistry Chapter One Notes Chem= the study of matter and the changes it undergoes and the nrg associated with those changes. Scientific Method= Observations, hypothesis, experiment, model Matter Composition (components of their proportions) Substance- fixed composition (ie Element (one type of atom), cmpd (two or more elements) Mixture- (variable composition) (ie homogeneous (no visible boundaries), heterogeneous (visible bound) Changes Chemical (change in composition) Physical (change in form or state) NRG Kinetic NRG (nrg due to motion) Potential NRG (stored nrg due to position) (ie gravitational, mechanical, electrostatic, chemical) ** Lower nrg states are favored, nrg is conserved Physical Properties include melting pt, color, electrical conductivity, density Chemical Props include flammability, corrosiveness, reactivity w/ acids Extensive Properties- dependent upon the amt of substance present Intensive Properties- independent of amt 1km 1000 m 0.6214 mi 1 m 10 cm 1.094 yd 1000mm 39.37 in 1 cm .01 m .3937 in
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1 Outline - Chemistry Chapter One Notes Chem= the study of...

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