Chem Review Exam #3 Chapters 8, 9, 11.2
Chapter 8 Mole: Unit for amount of substance; contains Avogadro's number of atoms, molecules, or other particles Avogadro's number: 6.02 x 1023; the number of items in one mole Molar mass: Mass in
CHEM LAB 116 Final Review Molarity the number of moles per liter of solution Molality the number of moles per kilogram of solvent Density = m/v The number of protons distinguishes one element from another element. Electrons are responsible for most
1. Draw the Lewis structure for the molecule or ion. 2. Count the total number of regions of high electron density (bonding and unshared electron pairs) around the central atom.
Double and triple bonds count as ONE REGION OF HIGH ELECT
CHEM 106 Review
Hydrocarbons from trees/organic compounds/gasoline, heats up earth, reduced by catalytic converters, burned in internal combustion engines CH4 methane, mostly naturally produced, causes global warming, comes a lot fro