CHEM 101 - Exam #1 Study Guide (Ch. 1-3)

chemistry - Answer - the study of matter and the changes it undergoes scientific method - Answer - a systematic approach to research qualitative data - Answer - general observations quantitative data - Answer - comprising of numbers obtained by measurement hypothesis - Answer - a tentative explanation for a set of observations law - Answer - a mathematical relationship that is consistently found to be true theory - Answer - a general principle or body of principles that has been developed to explain a wide variety of phenomena (this is NOT a wild guess) two major goals of science - Answer - prediction and control two "better" goals of science - Answer - understanding and explanation four basic rules of good science - Answer - 1. results should be reproducible by others 2. detailed research results should be reviewable 3. conclusions should be reasonable and unbiased 4. "give credit when credit is due" physics - Answer - chemistry in motion biology - Answer - chemistry in a cell engineering - Answer - chemistry in application matter - Answer - anything that occupies volume and has mass matter is governed by... - Answer - composition and energy mixture - Answer - a combination of two or more substances in which the substances retain their distinct identities homogeneous mixture - Answer - composition of the mixture is the same throughout heterogeneous mixture - Answer - composition of the mixture is not uniform throughout mixture separation - Answer - physical means can be used to separate a mixture into its pure components