CHEM 1404 Final: Study Guide for Final exam
Document Summary
Chapter 19. 1, 19. 2 family, 19. 3 family, 19. 4 family, 19. 5 -19. 10. Definition: chemistry is the study of the composition and the properties of matter. Significant figures: know how to determine significant figures. Metric conversions: know metric system and common conversions. Density: density = mass/volume = g/ml are common units; if density of material is greater than water, it will sink; if density less than it will float. Temperature: average energy of molecules in motions- more motion, more energy, higher temp. ; 3 units of temperature are fahrenheit, celsius, kelvin; 0k or 273. 15 c is called absolute zero. This is where theoretically all motion stops, zero kinetic energy. Periodic table: know metals and nonmetals and where they are on the periodic table. Periodic table entry: atomic number = # protons = # electrons in neutral atom. Potential energy = stored energy (it depends on position and/or composition);
