CHEM 120 Exam 2 Questions and
Answers A+ Rated
non-bonding electron pairs - -don't bond or share electrons
- bonding electron pairs - -share electrons and create a bond
- Lewis Structure rules - -1. count total number of valence electrons for all
atoms
2. make every atom "happy" with full valence shells
3. count electrons in structure (if the number is the same as #1 then it is
done; if not, form double bonds)
- Mole is a ______. - -quantity
- Avagadro's number - -6.02 x 10^23
- Units of concentration - -mol/L (Molarity or M)
- polyatomic ions - -covalent compounds that have a charge
- Carbonate - -
- Bicarbonate - -
- Sulfite - -
- Phosphate - -
- Nitrite - -
- Nitrate - -
- Hydroxide - -
- Cyanide - -
- Ammonium - -
- organic chemistry - -chemistry of compounds containing carbon
- Hydrocarbons - -compounds that contain carbon and hydrogen
- Amino - -NH2
Answers A+ Rated
non-bonding electron pairs - -don't bond or share electrons
- bonding electron pairs - -share electrons and create a bond
- Lewis Structure rules - -1. count total number of valence electrons for all
atoms
2. make every atom "happy" with full valence shells
3. count electrons in structure (if the number is the same as #1 then it is
done; if not, form double bonds)
- Mole is a ______. - -quantity
- Avagadro's number - -6.02 x 10^23
- Units of concentration - -mol/L (Molarity or M)
- polyatomic ions - -covalent compounds that have a charge
- Carbonate - -
- Bicarbonate - -
- Sulfite - -
- Phosphate - -
- Nitrite - -
- Nitrate - -
- Hydroxide - -
- Cyanide - -
- Ammonium - -
- organic chemistry - -chemistry of compounds containing carbon
- Hydrocarbons - -compounds that contain carbon and hydrogen
- Amino - -NH2
