Chapter 1 Matter and Measurement

CHE 115 GENERAL CHEMISTRY CHAPTER 1 numerate AND standard CONTENTS INTRODUCTION 2) PROPERTIES AND CHANGES OF MATTER 3) SIGNIFICANT FIGURES 4) ACCURACY VERSUS preciseness 1) INTRODUCTION Chemistry is the study of matter and the changes it undergoes. a. b. c. i. ii. event: eitherthing that has mess hall and occupies space Substance: form of matter that has a distinct idea and distinct properties Mixture: combination of 2 or more sums in which the nerve centers retain their distinct identities akin: composition same throughout Heterogeneous : composition non uniform d. e. fraction: made of the same kind of atom; canonical substance that can not be broken by any physical and chemical means to simpler substances Compound: containing dickens or more elements CLASSIFICATION OF MATTER The Study of Chemistry THE troika STATES OF MATTER bungle GAS: Loose structure hearty: Rigid structure solid liquidness LIQUID: little Rigid Str ucture PROPERTIES AND CHANGES OF MATTER natural Properties: o can buoy be observed without changing a substance into other substance. boiling point, density, mass, volume. Chemical Properties: o Can only be observed when a substance is changed into another substance. Flammability, corrosiveness, reactivity with acid.

intensifier Properties: o Independent of the measuring of the substance that is present. Density, boiling point, color. spacious Properties: o Dependent upon the amount of the substance present. Mass, volume, energy. CHANGES OF MATTER Physical Changes: ? does not a lter the composition or identicalness of a ! substance. Changes of state, temperature, volume, etcetera Chemical Changes: ? alters the composition or identity of the substance(s) involved. Combustion, oxidation, decomposition, etc. UNITS OF MEASUREMENT SI UNIT International System of Units (SI)  system of measurement SYSTEM VOLUME: 1 cm3 = (1 x 10-2 m)3 = 1 x 10-6 m3 1 dm3 = (1 x 10-1 m)3 = 1 x 10-3 m3 1...If you want to carry a full essay, order it on our website: OrderCustomPaper.com

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