CHE 110 Study Guide - Quiz Guide: Billiard Ball, Cathode Ray, Intensive And Extensive Properties
19 Jan 2017
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Review sheet for exam i -- che 110. 3 states-solid liquid gas substance- 1 type of particle; consists of either an element (molecules have one type of atom: or a compound (molecules have 2 or more types of atoms joined together) Examples: beach sand with diff sized grains = hetero mixture. Nitrogen gas = element salt water that tastes the same throughout = homo mixture scientific method. Observations of nature, hypothesis, prediction, test if hypothesis is supported, it is a theory and further tests are done. 1 type of particle element molecules have one type of atom compound molecules have 2 or more types of atoms joined together mixture. Precision: how closely 2 or more measurements of the same quantity agree with each other. Accuracy: how close measurement is to the true value of the quantity measured. measured vs. exact numbers. Measured numbers: are observed and recorded in an experiment.
