CHEM 1210 Chapter Notes - Chapter 1: Distillation, Conversion Of Units, Dimensional Analysis

• School: Ohio State University
• Department: Chemistry
• Course: CHEM 1210
• Professor: Kroner Steven

Document Summary

Chemistry: the study of matter and the changes it undergoes. Any characteristic that allows recognition of a type of matter and distinguishes it from other types. Composition and structure of atoms relate to properties of matter. Molecules: two or more atoms joined in specific shapes. Matter is classified by: physical state, composition. Pure substance: matter that has distinct properties and composition that doesn"t vary from sample to sample (ex. Is composed of only one kind of atom. Compound: composed of two or more elements joined together in which each substance does not retain its chemical identity. Mixture: combination of two or more substances in which each substance retains its chemical identity. Elements interact with other elements to form compounds. Law of constant composition: elemental composition of a compound is always the same. Homogenous: uniform appearance, also called solutions (salt water)