Chem_120_Study_guide_final

CHEM 120 Final Study Guide (Latest Update)


1. Ionic Compounds
a. Are held together by ionic bonds
a. Usually consist of a metal cation and a nonmetal anion
1. Always a metal and a nonmetal
2. Arranged in a crystal lattice
a. Each are more stable
−¿ ¿

i. Ex: lithium fluoride LiF Li +¿∧F ¿



2. Covalent Bonding
a. Electrons are shared between atoms in pairs
i. Nonmetal and Nonmetal
ii. Noble Gas electron configuration “8” valance electrons
3. Naming Ionic and Covalent bonds
a. Naming Ionic Compounds
i. Every chemical compound has its own specific name
1. State the name of the metal ion first then followed by the
root name of the nonmetal with -ide ending
a. Ex: sodium oxide
b. Naming Covalent Compounds
i. Ex: carbon tetrachloride - CCl4
1. First start by naming the original elements
a. Carbon has 1 molecular while chlorine has 4
b. We add the pre-fix that means the number of
molecules
i. Tetra- means 4
ii. 1 carbon and 4 chlorine

, c. Add the suffix -ide to the end of the second
element
b. Cu2SO4
i. Copper II sulfide
2. Whats The Bond




a.
b.




1. Combined gas law