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Study Guide: CHEM 134 Exam 1 (Chapters 1–4) – Matter, Atoms, Molecules, and Chemical Reactions

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Classification of Matter

Physical & Chemical Changes

Significant Figures

Temperature

Scientific Notation

Law of Conservation of Mass

Law of Definite Proportions

The Atom

Atomic Mass

Isotopes

Ions

Calculating Molar Mass

Mole Concept

Empirical Formula

Molecular Formula

Balancing Chemical Equations

Stoichiometry

Limiting Reagent

Percent Yield