Unformatted text preview: Chapter 3 • now that matter is studied at the K
macroscopic, microscopic, particulate (molecular) levels • hysical states of matter P ‐ Determine physical state of substances (solids, liquids, gases) given descriptions of volume, shape, particles moving, etc. • Density: d = • Percentage: ratio of parts per 100 parts ‐ Given amount of part and whole, calculate % ‐ Use a given % to solve for part or whole • lassification of matter C – iven examples, determine which are G elements, compounds, or mixtures – iven molecular‐level images, determine G
which are elements, compounds, or mixtures and solids, liquids, or gases – istinguish between homogeneous and D
heterogeneous mixtures Chapter 3 (Continued) • e able to identify properties and changes as B
physical or chemical ‐ Know terms for changes of state: ‐ Melting, freezing, vaporizing, condensation, sublimation, deposition • Chemical reaction: ‐ reactants: starting materials ‐ products: substances produced in reaction kinetic energy (KE): energy associated with an object’s motion ‐ Faster objects have higher KE. potential energy (PE): energy due to its position or composition (chemical bonds) heat: energy is transferred from a hotter substance to a cooler substance – dentify what lost heat and gained heat given I
different scenarios. • aw of C...
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