22 Inorganic Compounds Nomenclature Flashcards
rules in crisscross method
- subscripts must be reduced to lowest terms
- subscripts of one are not indicated
- subscripts of the polyatomic ions
must be kept - cation always comes first
binary compounds (ionic)
cations + anion”ide”
uses the Latin name of ancient elements
classical system
uses Roman numeral
stock system
Fe
ferrum
Cu
cuprum
Au
aureum
Pb
plumbum
Sn
stannum
lower charge in classical system
“ous”
higher charge in classical system
“ic”
are anions in classical and stock system named like ionic (binary) compounds?
yes
lower no. of O atom in oxyanions
“hypo,” “ite”
higher no. of O atom in oxyanions
“per,” “ate”
if O is replaced by S, what do you add?
“thio”
naming compounds with polyatomic ions
- cations are named like its
elemental name - transition metals follows both
naming system
when will you put inside parentheses with subscript of 2 or above?
polyatomic ions (oxyanions)
molecular compounds (covalent)
prefixes for both + “ide”
one
mono
two
di
three
tri
four
tetra
five
penta
six
hexa
seven
hepta
eight
octa
nine
nona
ten
deca
specific number of water molecules
hydrates
hydrates
compound name + prefix”hydrate”
hydrogen plus another element
binary acids
binary acids (pure state, g)
hydrogen + anion”ide”
binary acids (aqueous state)
“hydro” + anion + “ic acid”
acids formed when hydrogen is combined with oxyanions
ternary acids (oxyacids)
ternary acids high
“ate” -> “ic” + “acid”
ternary acids low
“ite” -> “ous” + “acid”
yields hydroxide ions (OH-) when dissolved in water
bases
bases
compound name + “hydroxide”
