Chapter 1 Matter and Measurement

CHE 115 GENERAL CHEMISTRY CHAPTER 1 numerate AND amount 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: everything that has jackpot and occupies space Substance: form of matter that has a defined composing and distinct properties Mixture: combination of 2 or more sums in which the bone marrows retain their distinct identities akin: composition same throughout Heterogeneous : composition non uniform d. e. atom: 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 leash STATES OF MATTER bungle GAS: Loose structure real: Rigid structure solid liquidness LIQUID: slight Rigid Structure PROPERTIES AND CHANGES OF MATTER natural Properties: o sight be observed without changing a substance into some 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.

intense Properties: o Independent of the measuring of the substance that is present. Density, boiling point, color. massive Properties: o Dependent upon the amount of the substance present. Mass, volume, energy. CHANGES OF MATTER Physical Changes: ? does not alte r the composition or identicalness of a sub! stance. Changes of state, temperature, volume, etc. 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)  measured 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 make up a full essay, order it on our website: OrderCustomPaper.com

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