CHEM 1031 Lecture Notes - Lecture 2: Intensive And Extensive Properties, Kilogram, Maple Syrup

• School: Temple University
• Department: Chemistry
• Course: CHEM 1031
• Professor: Elizabeth Cerkez

Document Summary

1. 1 chemistry in context: alkalis (cid:0) extracted from soaps and ashes, alcohol (cid:0) produced by fermentation and purified by distillation, lead to gold (alchemists, chemistry: the central science. Chemistry: the study of the composition, properties, and interactions of matter: the scientific method: Hypothesis: tentative explanation of observations that acts like a guide for gathering and checking information. Law: summarizes vast number of experimental observations & describes and predicts some aspect of the natural world. Theories: comprehensive, testable explanations of particular aspects of nature. Scientific method: question + observation to law or hypothesis to theory, combined with experimental verifications of the hypothesis: the domains of chemistry: Macroscopic domain: everyday things that can be seen with the naked eye. Microscopic domain: things visible through a microscope. Symbolic domain: contains specialized language used to represent components of the macroscopic and microscopic domains. Chemical symbiosis, chemical equations, graphs, drawings, calculations. Boils at a higher temperature (cid:0) macroscopic.