Chapter II Part 2 - Nomenclature Flashcards
2 types of ions
- cat/anionic (met-nonmet)
- polyatomic (comps w/ charge)
how to name ionic compounds w/ fixed neutral charge
KFl
no prefixes, bc it’s always in a ratio
last term “-ide”
“Potassium fluoride”
2 types of cov bonds & alt name for “covalent” bonds
- nonmet
- nonmet & metalloid
“molecular bonds”
prefixes for cov bonds up to 10
mono di tri tetra penta hexa hepta octo nona deca
how do cov bonds end (CO₂)
“-ide”
“carbon di-ox-ide”
what charge ion comes first when naming a fixed charge compound (with lithium and flouride)
the positive charge
lithium + fluoride –> LiFl
how to name variable charge ions (Fe2+ & Fe3+)
roman numerals = ion charge
Fe2+ –> Iron (II) ion
Fe3+ –> Iron (III) ion
Difference between ion & covalent comp ratios
Ion ratios = reduced to lowest form, bc in lattice
Covalent ratios = not reduced, bc different ratios make different molecules
define hydrate
ion comps bonding to a certain # of water molecules in a crystal lattice
2 steps to name hydrates (ex. MgSO₄ ⋅ 7H₂O)
1) Name the ion (“magnesium sulfate”)
2) Take the cov comp prefix that matches the # of molecules of water, & put “hydrate” @ end:
“magnesium sulfate heptahydrate”
how to write form for hydrates (ex. “magnesium sulfate heptahydrate”)
1) Write out ion & corresponding # of water molecules
2) Put operator dot between them:
- -> MgSO₄ ⋅ 7H₂O
Define Arrhenius acid
compound forming H⁺ hydrogen ions when put in a solution (of water)
4 symbols to use when writing acid reactions
g = gas l = liquid s = solid aq = aqueous (in water)
how to start naming an acid
separate the ion from the H+ one, and look at the name of the ion you have
how to name an acid if the ion it forms after H⁺ separation, ends in “-ide”
hydro - (ion) - ic acid
“hydrochloric acid”
(chloride ion)
how to name an acid if the ion it forms after H⁺ separation, ends in “-ate”
(ion) - ic acid
“sulfuric acid”
(sulfate ion)
