Rules intended for Naming Dissertation

Guidelines for Naming and Writing Compounds

We. Ionic Bonds • developing between a metal and nonmetal or maybe the bond among a positive ion and a negative ion developing a binary compound. • end in the suffix " ide" • Or developing between a metal and a complex ion. Steps in composing formulas: • • • •

Use a periodic stand of elements and of ions. Write the image and charge of the cation first (positive ion) Write down thier symbol and charge of the anion following (negative ion) Use criss-cross rule to balance intended for an electrically neutral compound. Name Mark and Charge Na+ Mg2+ ClO2Formula NaCl MgO

1 . 2 .

Sodium cloride Magnesium oxide Calcium supplement bromide Aluminum sulphide Nickle (III) chloride (indicates charge)

3.

CaBr2

4.

Al3+ Ni3+

S2Cl-

Al2S3

5.

NiCl3

6.

Sodium thiosulphate

(complex ion)

Na2S2O3

six.

Aluminum silicate

(complex ion)

Al2(SiO3)3

(must bracket a complex ion using a subscript)

eight.

Ammonium phosphate

NH4+

PO43-

(NH4)3PO4

(bracket comples ion with a subscript)

9.

Ba (symbol) oxide

Ba2+

O2-

Ba2O2

BaO

(written with the cheapest common multiple)

10.

Lead(IV) oxide

Pb4+

O2-

Pb2O4

PbO2

(written again with the lowest numbers)

II.

Covalent Bonds • sharing of bonds between two non-metals • end in " ide" Steps in producing formulas: • • •

refer to regular table of elements create symbol of every element make use of prefix program for naming. 1 -- mono 2 - pada 3 - tri 5 - tetra 5 -- penta Identity 6 - hexa several - hepta 8 - octa on the lookout for - nona or ennea 10 - deca Signs C Um C U C Cl Formula CO CO2 CCl4 N2O N2F5

1 . 2 . 3. 4. 5.

deadly carbon monoxide carbon dioxide carbon dioxide tetrachloride dinitrogen monoxide dinitrogen pentafluoride

N O N F

III.

Binary Acids • have hydrogen and a nonmetallic element • are an aqueous solution of the pure mixture • have prefix hydro, suffix ic 1 . installment payments on your 3. four. 5. hydroiodic acid hydrobromic acid hydrochloric acid hydrofluoric acid hydrocyanic acid HI(aq) HBr(aq) HCl(aq) HF(aq) HCN(aq) (exception to the rule since it is not just a binary compound)

IV.

Oxyacids • include hydrogen, fresh air and another element • name as if ionic then convert to the amount of acid name. Ionic name per __________ ate _________ ate* __________ ite hypo __________ ite Versus. * Search for " ate" name • • •

Acid brand per _______ ic chemical p _______ ic acid _______ ous acid hypo _______ ous acidity

number of oxygen decreases simply by one going down the data acid identity corresponds to term across chart add hydrogen, balance with criss-cross secret. Formula ClO4ClO3ClO2ClOIon Name perchlorate chlorate* chlorite hypochlorite Acidity Name perchloric acid chloric acid chlorous acid hypochlorous acid Solution HClO4(aq) HClO3(aq) HClO2(aq) HClO(aq)

1 .

installment payments on your

Formula PO53PO43PO33PO23-

Ion Identity perphosphate phosphate* phosphite hypophosphite

Acid Identity perphosphoric acid solution phosphoric chemical p phosphorous hypophosphorous acid

Method H3PO5(aq) H3PO4(aq) H3PO3(aq) H3PO2(aq)

Use criss-cross rule

VII.

Hydrated Chemical substances • ionic compounds that produce water when decomposed by heat • identity as ionic compound • indicate number of water substances using previous prefixes of " di", " tri", etc . plus the ending moisturizer. Name 1 . 2 . Copper(II) sulphate pentahydrate Zinc chloride hexahydrate Formulation CuSO4. 5H2O ZnCl2. 6H2O

VIII.

Ions

a great atom which has lost or gained a number of electrons. Ions usually take place in an aqueous solution.

Complicated Ions

groups of atoms which reveal electrons and exist with each other in aqueous solution, we. e., carbonate ion CO32-

Cations

positively incurred ions Rb+(aq)

Rubidium ion

Anions

• • •

negatively recharged ions P3-(aq) name in respect to info booklet include the charge in the formula

Phosphide ion

KN03(s)

K(aq)+ & NO-3(aq)

Potassium nitrate solid in a option of H2O(l) breaks down in to potassium ions and nitrate ions.

EXERCISES

I. a. Write the remedies for the following: 1 . metallic chloride installment payments on your calcium fluoride 3. corundum...

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