CHEM 031- Midterm Exam Guide - Comprehensive Notes for the exam ( 12 pages long!)

• School: University of Vermont
• Department: Chemistry
• Course: CHEM 031
• Professor: Erik L Ruggles

Document Summary

Solids have a definite volume and shape. close packing of elements/molecules. Liquids have more motion than solids. elements/molecules roll over each over. Gases take up entire volume of its vessel. lots of space between molecules/elements. Changing the state of matter, or change of appearance. = the formation of new bonds or breaking of bonds. ex: combustion. Pressure = atmosphere (atm), millimeters of mercury. K -> kilo -> 1 x 10^3 (1,000) M -> mega -> 1 x 10^6. G -> giga -> 1 x 10^9. Accuracy = how exact one can measure a specific quantity. defined by the instrument. Sig fig = indicate how accurate the measurement is, the greater the # of sig figs, the. Measurement = known digits + 1 approx more accurate the measurement more precise it is. Precision = the more reproducible measurements you make with an instrument, the.