tiguide - Hour Exam 1 Study Guide Ch 1 Matter and Energy 1...

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Unformatted text preview: Hour Exam 1 Study Guide Ch. 1 Matter and Energy 1. Matter and its Classification: Need to distinguish homo‐ vs. heterogeneous; pure substances vs. mixture; compounds vs. elements. 2. Physical and Chemical Changes and Properties: three states of matter (solid, liquid and gas); Useful physical properties: mass, volume, density and temperature (their units? How to calculate density & volume? And how to convert among temperature scales?). 3. Energy and Energy Changes: kinetic & potential energy (chemical etc). 4. Scientific Inquiry (distinguish among observation, hypothesis and theory) Ch. 2 Atoms, ions and the periodic table 1. Dalton’s Atomic Theory: four “postulates” (memorize) 2. Structure of the Atom: memorize definition of “Z” and “N”; properties of protons, neutrons and electrons Thompson and Rutherford experiments – know the conclusions but not experimental details. 3. Ions: formation of cation and anion; charge of monoatomic ions 4. Atomic Mass: definition?? Isotope: definition? Symbol? Nature Abundance? Relative Atomic Mass (how to calculate?) 5. The Periodic Table: main group, transition metal; metal, metalloid and nonmetal 6. Math toolbox 1.1 (pp. 35‐36) – how write numbers in scientific notation; simple calculations w/ scientific notation Ch 3 Chemical Compounds 1. Ionic and Molecular Compounds: physical properties; Electrolytes and Nonelectrolytes 2. Monatomic and Polyatomic Ions: charge of monoatomic ions (from Ch02). ...
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