9.2 NOMMENCLATURE

Binary Covalent Rules

1) Left to Right

Binary Covalent Rules

1) Left to Right

SiO2 O2Si

silicon dioxide dioxygen silicide

Binary Covalent Rules

1) Left to Right2) “-ide” be back!

Binary Covalent Rules

1) Left to Right2) “-ide” be back!

SiO2 O2Si

silicon dioxide dioxygen silicide

Binary Covalent Rules

1) Left to Right2) “-ide” be back!3) Junkies need their PRE-fix

H2O NO

dihydrogen monoxide nitrogen monoxide

N2O SF6 dinitrogen monoxide sulfur hexafluoride

Pre---FIXES

MonoDiTriTetraPentaHexaHeptaOctaNonaDeca

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Binary Covalent Rules

1) Left to Right2) “-ide” be back!3) Junkies need their PRE-fix

a. EXCLUDE MONO on first element

What is a binary molecular compound?

A compound containing only two different types of atoms that are COVALENTLY bonded

N2O

Practice

CCl4

As2O3

Br2

H2O2

NF3

Carbon tetrachloride

Diarsenic trioxide

Bromine

Dihydrogen dioxide

Nitrogen Trifluoride

COMMON NAMES

H2O

H2O2

NH3

N2H4

N2O

NO

water

hydrogen peroxide

ammonia

hydrazine

nitrous Oxide

nitric Oxide

dihydrogen monoxide

dihydrogen dioxide

nitrogen trihydride

dinitrogen tetrahydride

dinitrogen monoxide

nitrogen monoxide

Using the rules for naming binary molecular compounds, describe how you would name N2O4.

1. Element on the left does it need a prefix. If yes assign it.

2. Identify second element and change ending to ide.

3. Assign prefix to second element.

Yes 2=diDinitrogen

O-oxygen = oxide

4=tetraTetroxide

Dinitrogen tetroxide

Acids

ACIDS

Oxyacids Binary Acids

Hydro + element-ic + acid

HCl

Hydrochloric Acid

OxyANION root – ic + Acid

H2SO4

Sulfuric Acid

What is the difference between a binary acid and an oxyacid?

Binary acids contain hydrogen and one other element, they are named with the prefix hydro- and the root of the other element with the suffix –ic acid

Oxyacids contain oxygen bonded to another non-metal element, they are named based off the OXYANION that they are formed from.

Binary Acids

Oxyacids

Sulfate

Phosphate

Nitrate

Carbonate

Chlorate

SO4

PO4

NO3

CO3

ClO3

Oxyacids

Sulfate

Phosphate

Nitrate

Carbonate

Chlorate

Sulfuric Acid

Phosphoric Acid

Nitric Acid

Carbonic Acid

Chloric Acid

H2SO4

H3PO4

HNO3

H2CO3

HClO3

SO42-

PO43-

NO3-

CO32-

ClO3-

Oxyacids

Perchloric Acid

Chloric Acid

Chlorous Acid

Hypochlorous Acid

HClO4

HClO3

HClO2

HClO

+1

----

-1

-2

Practice

H2SO3

HNO

HClO4

H3PO4

Sulfurous Acid

Hyponitrous Acid

Perchloric Acid

Phosphoric Acid