CHEM 1201 Chapter : Chapter 3
Document Summary
Overview: balance chemical equations, percent composition from chemical formula, grans moles atoms, empirical formula from element , molecular formula from empirical formula, empirical formula form combustion, mass products mass reactants. Number od neutrons=5. 97 x 10^24kg (1 neatron/1. 67 x 10^-27kg)= 3. 57 x 10^51 neutrons. How big is a gold atom? r=1. 35 a d=2. 70a. Ionic compounds: made of cation and anions, transfer of electrons, typically metal plus non-metel (pg. Naming inorganic compounds: cations, same as metal: na+ sodium ion, zn24=zonc ion, positive charge indicated if variables, non-metals add ium, nh4=ammonium ion (table 2. 4) Naming inorganic anions: monatomic and some polyatomic add ide, polyatomic with oxygeb add. Protonated oxy anions: one proton, prefix hydrogen, two proton, prefix dihydrogen. Naming acids: change ide to ic and add hydro, change ate to ic and ite to ous. Methane + oxygen -> carbon dioxide + water. Ch4 + o2 -> co2 +h2o: start with elements that appear in the fewest formulas.
