Exam 2 Naming and Writing Formulas Need to know
ammonium phosphate
(NH4)3PO4
silver (I) dichromate
Ag2Cr2O7
silver (I) sulfide
Ag2s
Write the chemical formulas for the following binary molecular compounds: dibromine tetroxide
Br204
Write the formulas for the following compounds: carbon tetrachloride
CCl4
Write the chemical formulas for the following binary molecular compounds: carbon monoxide
CO
carbon disulfide
CS2
calcium chloride
CaCl2
Part A: The IUPAC nomenclature for inorganic compounds is divided into five main categories. List the five main categories:
Category 1: binary ionic compound Category 2: ternary ionic compound Category 3: binary molecular compound Category 4: binary acid Category 5: ternary oxyacid
iron (Ill) oxide
Fe2O3
iron (II) oxide
FeO
carbonic acid
H2CO3 (aq)
Name or write the formula of the following binary acids: hydrosulfuric acid
H2S(aq)
Write the chemical formulas for the following binary molecular compounds: dinitrogen pentoxide
N2O5
Write the chemical formulas for the following binary molecular compounds: nitrogen tribromide
NB3
ammonia (g)
NH3
sodium hydrogen carbonate
NaHCO
nickel (II) perchlorate
Ni(ClO4)2
NiBr3
Nickel (III) bromide
lead (IV) chromate
Pb(CrO4)2
sulfur dioxide
SO2
Name the following polyatomic anions: C2H3O2-
acetate ion
Name or write the formula of the following ternary acids: HC2H3O2(aq)
acetic acid
Al(OH)3
aluminum hydroxide
Name the following ionic compounds: NH4Br
ammonium bromide
There is one common polyatomic cation: NH +
ammonium ion
NH4NO3
ammonium nitrate
CaCO3
calcium carbonate
Name the following monoatomic anions: C4‐
carbide ion
Write the name of the following binary molecular compounds: CO2
carbon dioxide
Write the chemical formula for the following binary molecular compounds: CS2
carbon disulfide
Name the following oxyanions ClO3-
chlorate ion
MgCl2
magnesium dichloride
KCI
potassium chloride
Zn3(PO4)2
zinc phosphate
Naming Binary Acids:
A binary acid is an aqueous solution of a compound containing hydrogen and a nonmetal element. The chemical formula always begins with H, for example, HF(aq). Binary acids are named by using the prefix "hydro-" before the nonmetal element stem and adding the suffix "-ic acid. For example, HC(aq) is named hydrochloric acid. Name, or write the formula of the following binary acids: HF(aq), hydrofluoric acid
Naming Binary Molecular Compounds:
A binary molecular compound is composed of two nonmetal elements. The first element in the compound is named first using the parent name and the second element in the formula uses the stem of the parent name with the suffix "-ide" added. The number of atoms of each element is indicated by Greek prefi xes, with an exception being the prefix "mono-" is never used in naming the first element. For example, P4S7 is named tetraphosphorus heptasulfide.
Naming Ternary Acids:
A ternary acid is an aqueous solution of a compound containing hydrogen and an oxyanion. Again, the chemical formula always begins with H. Ternary acids are named as follows: if the oxyacid contains an oxyanion whose name ends in "-at e" then "-ic acid" replaces -ate in the ternary acid name. If the oxyacid contains an oxyanion whose name ends in "-it e", then "-ous acid" replaces " -it e" in the ternary acid name.
aluminum sulfite
Al2(S03)3
aluminum sulfate
Al2(S04)3
aluminum fluoride
AlF3
arsenic (III) oxide
As2O3
Naming Binary Molecular Compounds: A binary molecular compound is composed of two nonmetal elements. The first element in the compound is named first using the parent name and the second element in the formula uses the stem of the parent name with the suffix "-ide" added. The number of atoms of each element is indicated by Greek prefi xes, with an exception being the prefix "mono-" is never used in naming the first element. For example, P4S7 is named tetraphosphorus heptasulfide. Write the name of the following binary molecular compounds: CO2
CO2 carbon dioxide
chlorine (g)
Cl2
chromium (III) sulfate
Cr2(SO4)3
copper (I) carbonate
Cu2CO3
Write the formulas for the following compounds: copper (II) bromide
CuBr2
copper (ii) sulfate
CuSO4
Naming Monoatomic Cations
Groups 1 and 2, and the aluminum (Al), cations are named for the parent metal followed by the word "ion". Transition metals often form more than one cation so it is necessary to include a Roman numeral in parentheses to indicate the charge of the cation. Copper, for example, can form either Cu+ or Cu2+. So the cation name for these cations would be the copper (I) and copper (II) ions, respectively.
Name or write the formula of the following ternary acids: carbonic acid
H2CO3(aq)
Name or write the formula of the following ternary acids: nitrous acid
H2NO2(aq)
Write the formulas for the following compounds: hydrogen sulfide
H2S Write the formulas for the following compounds: barium hydroxide, Ba(OH)2 Write the formulas for the following compounds: nitrous acid, HNO2
Name or write the formula of the following ternary acids: sulfurous acid
H2SO3(aq)
Name or write the formula of the following binary acids: hydrosulfuric acid
H2SO4(aq)
Name or write the formula of the following ternary acids: sulfuric acid
H2SO4(aq)
Name or write the formula of the following ternary acids: phosphoric acid
H3PO4(aq)
Name or write the formula of the following ternary acids: phosphorous acid
H3PO4(aq)
Name or write the formula of the following binary acids: hydrobromic acid
HBr (aq)
Name or write the formula of the following binary acids: hydrobromic acid
HBr(aq)
Name or write the formula of the following ternary acids: acetic acid
HC2H3O2(aq)
Name or write the formula of the following binary acids: hydrochloric acid
HCI (aq)
Name or write the formula of the following binary acids: hydrochloric acid
HCI(aq)
chloric acid
HClO3
Name or write the formula of the following binary acids: hydrofluoric acid
HF (aq)
Name or write the formula of the following binary acids: hydrofluoric acid
HF(aq)
Name or write the formula of the following ternary acids: nitric acid
HNO3(aq)
Write the chemical formulas for the following binary molecular compounds: triiodine nonaflouride
I3F9
Write the chemical formulas for the following binary molecular compounds: tetraiodine decoxide
I4O10
potassium permanganate
KMn04
potassium nitrate
KNO3
lithium cyanide
LiCN
magnesIum hydroxide
Mg(OH)
magnesium sulfate
MgSO4
Naming Monoatomic Anions
Nonmetal ions are named using the nonmetal stem plus the suffix "‐ide", followed by the word ion. For example, Cl‐ is named the chloride ion.
Write the chemical formulas for the following binary molecular compounds: tetraphosphorus decoxide
P4O10
Write the chemical formulas for the following binary molecular compounds: phosphorous trichloride
PCl3
lead (II) nitrate
Pb(NO3)2
lead (III) nitrate
Pb(NO3)2
Naming Polyatomic Ions
Polyatomic anions generally contain one or more elements combined with oxygen and are often called oxyanions. Some common oxyanions have a name ending with the suffix "‐ate". For example, the NO ‐ ion is the nitrate ion. You cannot "predict" how many oxygen atoms a particular "‐ate" ion will have. You typically have to either memorize them or look them up.
Write the chemical formulas for the following binary molecular compounds: disulfur hexaflouride
S2F8
Write the chemical formulas for the following binary molecular compounds: disulfur hexaiodide
S2I6
Write the chemical formulas for the following binary molecular compounds: octaselenium pentoxide
Se8O5
Write the chemical formulas for the following binary molecular compounds: silicon dioxide
Si02
Anions derived by adding one or two H+ ions to the oxyanion are named by adding the word "hydrogen" or "dihydrogen" respectively before the name of the anion.
The total charge on the resulting anion will increase by +1 for each H added.
(NH4)3PO4
ammonium phosphate
Different prefixs are used when a series of oxyanions extends to 4 members
as with the halogens., The prefix "per‐" indicates one more oxygen atom than the "‐ate" ion. The prefix "hypo‐" indicates one less oxygen atom than the "‐ite" ion.
Name the following monoatomic cations: Be2+
beryllium (II) ion
Be(NO3)2
beryllium nitrate
Name the following oxyanions BrO3‐
bromate ion
Name the following monoatomic anions: Br‐
bromide ion
Name the following oxyanions BrO2‐
bromite ion
Name the following monoatomic cations: Ca2+
calcium (II ) ion
Ca(CN)2
calcium cyanide
Write the name of the following binary molecular compounds: CO
carbon monoxide
Write the chemical formula for the following binary molecular compounds: CCl4
carbon tetrachloride
Name the following polyatomic anions: CO32-
carbonate ion
Name or write the formula of the following ternary acids: H2CO3
carbonic acid
Name or write the formula of the following ternary acids: HCl03(aq)
chloric acid
Name the following oxyanions ClO2-
chlorite ion
Name or write the formula of the following ternary acids: HClO2(aq)
chlorous acid
Name the following polyatomic anions: CrO42‐
chromate ion
Name the following monoatomic cations: Cr2+
chromium (II) ion
Cr 203
chromium (Ill) oxide
Co(N03)2
cobalt (II) nitrate
Name the following monoatomic cations: Co3+
cobalt (III) ion
Cu(C2H3O2)2
copper (II) acetate
Name the following monoatomic cations: Cu2+
copper (II) ion
CuC2H302
copper (Ill) acetate
CuSO4
copper sulfate
Polyatomic anions that do not fit into the above categories: CN‐
cyanide ion
Name the following polyatomic anions: Cr2O72-
dichromate ion
Name the following oxyanions that contain the work hydrogen or dihydrogen H2PO-
dihydrogen phosphate ion
Name the following oxyanions that contain the work hydrogen or dihydrogen H2PO ‐
dihydrogen phosphite ion
Write the name of the following binary molecular compounds: N2O
dinitrogen monoxide
Write the name of the following binary molecular compounds: N2O5
dinitrogen pentoxide
Write the name of the following binary molecular compounds: N2O4
dinitrogen tetroxide
Write the chemical formula for the following binary molecular compounds: P2O5
diphophorus pentoxide
AuCl3
gold (Ill) chloride
Name or write the formula of the following binary acids: Hl(aq)
hydriodic acid
Name or write the formula of the following binary acids: HBr(aq)
hydrobromic acid
Name the following oxyanions that contain the work hydrogen or dihydrogen: HCO3‐
hydrogen carbonate ion
Name the following oxyanions that contain the work hydrogen or dihydrogen: HPO42‐
hydrogen phosphate ion
Name the following oxyanions that contain the work hydrogen or dihydrogen: HPO32‐
hydrogen phosphite ion
Name the following oxyanions that contain the work hydrogen or dihydrogen: HSO4‐
hydrogen sulfate ion
Name or write the formula of the following binary acids: H2S(aq)
hydrosulfuric acid
OH‐
hydroxide ion
Name the following oxyanions BrO‐
hypobromide ion
Name the following oxyanions ClO-
hypochloride ion
Name or write the formula of the following ternary acids: HCIO(aq)
hypochlorous acid
Name the following monoatomic anions: I‐
iodide ion
Name the following monoatomic cations: Fe2+
iron (II ) ion
FeCl3
iron (II) chloride
FeSO4
iron (II) sulfate
Fe2O3
iron (Ill) oxide
PbSO4
lead (II) suIfate
Name the following monoatomic cations: Mg2+
magnesium (II) ion
Mg(NO3)2
magnesium nitrate
Name the following monoatomic cations: Ni3+
nickel (III) ion
Name the following polyatomic anions: NO3-
nitrate ion
Name or write the formula of the following ternary acids: HNO3(aq)
nitric acid
Name the following monoatomic anions: N3‐
nitride ion
Name the following polyatomic anions: NO2‐
nitrite ion
Write the name of the following binary molecular compounds: NO
nitrogen monoxide
Write the chemical formula for the following binary molecular compounds: NH3
nitrogen trihydride
Name or write the formula of the following ternary acids: HNO2(aq)
nitrous acid
Name
or write the formula of the following binary acids: Hl(aq), hydriodic acid
Name the following monoatomic anions: O2‐
oxide ion
Write the chemical formula for the following binary molecular compounds: OF2
oxygen diflouride
Name the following oxyanions BrO4‐
perbromate ion
Name the following oxyanions ClO4‐
perchlorate ion
Name or write the formula of the following ternary acids: HCIO4(aq)
perchloric acid
Name the following polyatomic anions: MnO4‐
permanganate ion
Name the following polyatomic anions: PO33‐
phosphate ion
Name the following polyatomic anions: PO43‐
phosphate ion
Write the chemical formula for the following binary molecular compounds: PCl3
phosphorus trichloride
Name the following monoatomic anions: P3‐
phospide ion
Write the chemical formula for the following binary molecular compounds: PCl5
phospohorus pentachloride
Name the following monoatomic cations: K+
potassium ion
KMnO4
potassium permanganate
Name the following monoatomic anions: Se2‐
selenide ion
Write the chemical formula for the following binary molecular compounds: SiO2
silicon dioxide
Name the following monoatomic cations: Ag+
silver ion
NaHCO3
sodium bicarbonate
NaHSO4
sodium bisulfate
NaClO3
sodium chlorate
Name the following monoatomic cations: Na+
sodium ion
Name the following polyatomic anions: SO42‐
sulfate ion
Name the following monoatomic anions: S2‐
sulfide ion
Name the following polyatomic anions: SO42‐
sulfite ion
Write the chemical formula for the following binary molecular compounds: SCl6
sulfur hexachloride
Write the name of the following binary molecular compounds: SO3
sulfur trioxide
Name or write the formula of the following ternary acids: H2SO4(aq)
sulfuric acid
Name the following monoatomic cations: Zn2+
zinc (II) ion