CHEM 1070 Study Guide - Final Guide: Heat Capacity, Chemical Equation, Chemical Formula
9 Dec 2016
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Multiplying and dividing measurements: the answer is limited by the value with fewest significant figures. Adding and subtracting measurements: the answer is limited by the value with the greatest absolute uncertainty. Energy has different forms: kinetic-motion, potential- position but not (yet) actualized, chemical- chemical change, thermal- heat, electrical- flow of charge. Rutherford"s e(cid:454)peri(cid:373)e(cid:374)t shooti(cid:374)g positi(cid:448)el(cid:455) charged particles at thi(cid:374) gold foil proved that positive charge must be concentrated at core. Mass number= number of protons + number of neutrons. Mole: provides easy conversion from individual molecules to macroscopic amounts, formula mass of a substance is numerically equal to the mass (in grams) of 1 mol of that substance. Chemical reactions: precipitation- formation of solid drives reactions, acid-base- formation of water and salt, gas evolution- formation of gas drives reactions, oxidation-reduction- release of energy on electron transfer. Characteristics of waves: amplitude, wavelength, frequency.
