Exam 2 Naming and Writing Formulas Need to know

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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


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