Temperature knowtheformulasforconvertingftocorctof

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Unformatted text preview: Be able to determine density, mass, or volume given the other two quantities ‐ Identify what items sink or float in a given liquid given the densities of the liquid and other substances. • Temperature - Know the formulas for converting ˚F‐to‐˚C or ˚C‐to‐˚F and K‐to‐˚C or ˚C‐to‐K • Percentage: ratio of parts per 100 parts ‐ Given amount of part and whole, calculate % ‐ Use a given % to solve for part or whole ‐ Calculate weighted averages keeping track of sig figs and decimal places when appropriate. ‐ Know how to calculate density of an object based on % by composition versus % by mass. Chapter 3: Matter • Know that matter is studied at the macroscopic, microscopic, particulate (molecular) levels • Physical states of matter ‐ Determine physical state of substances (solids, liquids, gases) given descriptions of volume, shape, particles moving, etc. CHEM139 Exam 1 Study Guide • Classification of matter – Given examples, identify the pure substances (elements or compounds) and the mixtures – Given molecular‐level images, classify each as an element, compound, or mixture and as a solid, liquid, or gas – Distinguish between homogeneous and heterogeneous mixtures page 1 of 3 Chapter 3...
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