CHEM 0110 Chapter Notes - Chapter 1: Physical Property, Significant Figures, Oxaliplatin
Document Summary
Chemistry - the study of the composition and structure of materials and of the changes that materials undergo. Material - each of the partial kinds of matter. Matter - whatever occupies space and can be perceived by the senses. Mass - quantity of matter in a material. Experiment - observation of natural phenomena carried out in a controlled manner so that the results can be duplicated and rational conclusions obtained. Law - concise statement or mathematical equation about a fundamental relationship or regularity of nature (describes what has been observed) Hypothesis - a tentative explanation of some regularity of nature. Theory - a tested explanation of a basic natural phenomenon (gives reasoning, result of many tests) Law of conservation of mass - the total mass remains constant during a chemical change (reaction) Only change is in grouping of atoms. Atom - exceedingly small particles that compose all materials. Molecules - more complicated structures made of atoms.
