CHY 123 Lecture Notes - Lecture 2: Mercury(Ii) Iodide, Mercury(Ii) Nitrate, Potassium Iodide
28 Oct 2016
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Document Summary
Chemistry the study of composition, properties and transformations of matter. Interactive process used to perform research by using a hypothesis, observations, experiment, and theories and models that test the hypothesis. Mass is a physical property that measures the amount of matter in an object (independent of location) Weight is the force with which gravity pulls on an object (location dependent moon) Matter anything that has mass and occupies space (classified by its state and its properties) Solid particles close together and organized. Liquid particles close together but disorganized. Gas particles far apart and disorganized. Physical properties properties of matter that can be measured without changing their composition/identity. Cutting a sheet of paper in half (still paper, comp didn"t change) Chemical properties describing the way a substance may change or react to form other substances (composition does change) Pure substance has a constant composition and a fixed set of physical and chemical properties.
