CHEM 1201 Chapter Notes - Chapter 1: Distillation, Human Body, Standard Deviation
Document Summary
10% of us employment: employment in, research and development, quality control, sales and service, sulfuric acid is the most produced chemical. 2 ways of classifying matter: by physical state (gas, liquid, solid, by composition (element, compound, mixture, sates of matter, solid. Molecules packed close but moving fast: gas (vapor) Molecules far apart and move at high speeds constantly colliding with other molecules and the container. Compressions increase freq of collisions but does not alter size or shape of molecules: pure substances, matter that has distinct properties and a composition that does not vary form sample to sample (ex. Elements: cannot form simpler substances and each element is composed of one type of atom. Heterogeneous: homogeneous is where the mixtures are consistent throughout (air); also known as solutions (solid/liquid/gas) F = (9/5)c + 32: derived si units: based on the si units, volume, of a cube is length3, liter = cubic decimeter, 1ml = 1cm^3, density: mass/volume (g/ml) (g/cm^3)
