Exam 2 Flashcards
What does IUPAC stand for?
International Union of Pure & Applied Chemistry
What is the role of the IUPAC?
Set standards for the naming and classification of INORGANIC compounds
What is class A? (2 items) + definition
Ionic compounds
- Binary Ionic = compound consisting of 1 metal & 1 nonmetal
- Ternary Ionic = compound consisting of usually 1 metal and at least 1 nonmetal
What is class B? (1 item)
Molecular compounds
-Binary Molecular = compound consisting of 2 nonmetals
What is class C? (2 items)
Aqueous Solution
- Binary Acid = compound containing 1 nonmetal & Hydrogen in solution
- Ternary Oxyacid = compound containing Hydrogen, Oxygen, & 1 nonmetal in solution
Does a cation ion lose or gain electrons? What is its charge?
Cation’s lose electrons. The charge is positive.
Does a anion lose or gain electrons? What is its charge?
Anions gain electrons. The charge is negative.
What is a polyatomic ion?
A group of atoms covalently bound together with an overall charge. [If it had a negative charge, it would be a polyatomic anion. If it were positive, it would be a polyatomic cation.]
C2H3O2-
Acetate
CO3^2-
Carbonate
ClO3-
Chlorate
ClO2-
Chlorite
CrO4^2-
Chromate
CN-
Cyanide
Cr2O7^2-
Dichromate
HCO3-
Hydrogen Carbonate
HSO4-
Hydrogen Sulfate
OH-
Hydroxide
ClO-
Hypochlorite
NO3-
Nitrate
NO2-
Nitrite
ClO4-
Perchlorate
MnO4-
Permanganate
PO4^3-
Phosphate
SO4^2-
Sulfate
SO3^2-
Sulfite
NH4+
Ammonium
H3O+
Hydronium
What is the overall charge of a formula unit?
It is neutral
When writing a chemical formula, how must the cation & anion be placed?
Cation must come before the Anion
What is the system called for naming cations? [Fe2 = Iron(II) ion or Fe3 = Iron(III) ion)
Stock System
What are polyatomic anions that contain oxygen called?
Oxyanion
What are the 7 diatomic molecules?
H2, N2, O2, F2, Cl2, Br2, and I2.
Mono
1
Di
2
Tri
3
Tetra
4
Penta
5