CHEM 003A Lecture Notes - Lecture 1: Boiling Point, Unified Atomic Mass Unit, Atomic Number
10 Sep 2016
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Document Summary
Chemistry is sometimes referred to as the central science . It"s textbook de nition is the study of matter . Chemistry can be applied to a variety of different everyday situations as well as complexities matter: anything that has mass and takes up space. May be a solid(s),liquid(l), or gas(g) weight: the force of gravity acting upon an object. Matter may be a mixture or a pure substance. A pure substance can either be an element or a compound. It is vital to know the workings of several mathematical applications: In chemistry, a results may be precise but not accurate. Data readings and measurements may not always be exact due to the observer"s bias as well as the equipment being used. Accuracy: how close measurements are to a known or accepted standard. Precision: how close measurements are to the other measurements taken for the same set of data.
