Chemistry Test 7.1

Name the binary compound indicated by the formula below: BaO

Barium Oxide

Naming rule

CATION followed by ANION - IDE

Write the formulas: Calcium nitrite

Ca(NO2)2

Write the formulas: Calcium Chloride

CaCl2

Name the binary compound indicated by the formula below: CaBr2

Calcium Bromide

Name the binary compound indicated by the formula below: CaCl2

Calcium Chloride

Name following compound: Ca(OH)2

Calcium hydroxide

CO2 =

Carbon dioxide

CO =

Carbon monoxide

Name this binary molecular compound: CCl4

Carbon tetrachloride

Basic naming compound containing polyatomic ion rules

Cation followed by anion (in this case cation followed by polyatomic anion)

ClO3-

Chlorate

ClO2-

Chlorite

Write the formula: Carbon Tetraiodide

Cl4

Formula and Names: CoF3

Cobalt (III) Fluoride

Binary Compounds

Compounds composed of 2 or more elements

Formula and Names: Cu2+ and Br-

Copper (II) Bromide

Name the compound CuCl2

Copper (II) Chloride

Formula and Names: CuO

Copper (II) Oxide

Write the formulas: Copper (II) sulfate

CuSO4

Write the formula: Magnesium and Chlorine

MgCl2

Write the formula: Dinitrogen trioxide

N2O3

Ions that only form 1 cation do not need a Roman Numeral

Na+ Ba2+ Al3+

Write the formulas: Sodium carbonate

Na2CO3

Write the formula: Sodium and Sulfur

Na2S

Write the formulas: Sodium Iodide

NaI

Nomenclature

Naming System - System involving combining and naming the compounds + and - ions

Oxyanions: NO2, NO3

Nitrite, Nitrate

Binary compounds: naming NO2

Nitrogen dioxide

Binary compounds: naming NO

Nitrogen monoxide

Write the formula: Oxygen Difluoride

OF2

Most polyatomic contain oxygen and are called

Oxyanions - Some can combine with Oxygen to form more than one oxyanion

Write the formula: Phosphorus trichloride

PCl3

More oxygens than the (ate) gets the prefix

Per

ClO4-

Perchlorate

Name this binary molecular compound : PBr5

Phosphorous pentabromide

Name following compound: KClO3

Potassium Chlorate

Name following compound: KClO

Potassium hypochlorite

Binary Molecular naming rule two

Second element is named by combining a prefix to the root name of the element followed by -ide

Name the binary compound indicated by the formula below: AgCl

Silver Chloride

Naming polyatomic anions: AgNO3

Silver Nitrate

Naming polyatomic anions: AgNO2

Silver Nitrite

Name following compound: Ag2O

Silver Oxide

Name the binary compound indicated by the formula below: SrF2

Strontium Fluoride

Name this binary molecular compound : SO3

Sulfur trioxide

Binary Molecular naming rule three

The "o" or "a" at the end of a prefix is usually dropped when the world following the prefix begins with another vowel (EX. monooxide or pentaoxide)

Formula and Names: SnF2

Tin (II) Fluoride

Formula and Names: SnI4

Tin (IV) Iodide

Name the binary compound indicated by the formula below: ZnO

Zinc Oxide

Zn2+ and I-

ZnI2

Zn2+ and S2-

ZnS

Write the formula: Aluminum and sulfur

Al2S3

Write the formula: Aluminum and Nitrogen

AlN

Naming polyatomic ions: Al2(SO4)3

Aluminum sulfate

Name following compound: NH4OH

Ammonium hydroxide

Naming binary molecular compounds

- Composed of covalently bonded atoms, forming molecules - Not composed of charges ions - Based on the use of prefixes

NOMENCLATURE : Some elements such as iron or copper form more than 1 cation ... - To distinguish scientists came up with a system using...

- Roman numerals to indicate a cations charge - The roman numeral is enclosed in parenthesis (II) and immediately follows the Cation/Metal name

Oxyanions with fewer oxygens is called _______ and the oxyanion with more oxygens is the __________

-ite, -ate

NUMERICAL PREFIXES: 1 2 3 4 5 6 7 8 9 10

1 - mono 2 - di 3 - tri 4 - tetra 5 - penta 6 - hexa 7 - hepta 8 - octa 9 - nona 10 - deca

Ion

A charged atom

Anion

A negatively charged ion

Cation

A positively charged ion

Name this binary molecular compound : As2O5

Diarsenic pentoxide

Binary compounds: naming N2O

Dinitrogen monoxide

Binary compounds: naming N2O5

Dinitrogen pentoxide

Binary compounds: naming N2O4

Dinitrogen tetroxide

Binary compounds: naming N2O3

Dinitrogen trioxide

Many polyatomic anions come from a

Dissociated atom

Binary molecular naming rule one

Element that has a smaller group number is given first (more left in table) * If both in same group then higher period element goes first (lower in table) - Element is only given a prefix if it contributes more than one atom to a molecule of the compound

In a binary ionic compound charges must be

Equal and offset each other forming neutral compound

"Tetra" means

Four

Acids dissociate in water donating their

Hydrogen

Binary acids consist of two elements usually a

Hydrogen and a halogen (fluorine, chlorine, bromine, or iodine)

Oxyacids contain

Hydrogen, oxygen, and a third element usually a non metal

Less oxygens than the (ite) gets the prefix:

Hypo

ClO-

Hypochlorite

Name this binary molecular compound : ICl3

Iodine trichloride

Name following compound: Fe2(CrO4)3

Iron (II) Chromate

Formula and Names: FeO

Iron (II) Oxide

Incorporate a roman numeral in Iron Oxide

Iron (II) Oxide

Formula and Names: FeS

Iron (II) Sulfide

Formula and Names: FeO3

Iron (III) Oxide

For simple ionic compounds the ratio is not given because

It is implied by the charges

Write the formulas: Potassium Sulfide

K2S

Write the formulas: Potassium perchlorate

KClO4

Write the formula: Potassium and iodine

KI

Formula and Names: PbCl2

Lead (II) Chloride

Write the formulas: Lithium Nitrate

LiNO3

Formula and Names: HgS

Mercury (II) Sulfide