CHEM 1321 Study Guide - Comprehensive Midterm Guide: International System Of Units, Decimal Mark, Electric Current
5 Oct 2016
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Experiment- an observation of natural phenomena carried out in a controlled manner so that the results can be duplicated and rational conclusions made. Law- a concise statement or mathematical equation about a fundamental relationship or regularity of nature. Hypothesis- a tentative explanation of some regularity of nature. Theory- a tested explanation of basic natural phenomena. Law of conservation of mass- the total mass remains constant during a chemical change/reaction. Weight- force or gravity exerted on an object, changes. Mass- how much matter in an object, never changes. A change in the form of matter but not in its chemical density. A change in which one or more kinds of matter are transformed into a new kind of matter or several new kinds. Characteristic of a material involving for a material without changing its chemical identity. Ex- state of matter, color, melting point its chemical change.
