Hi, my name is Marco Antonio Orozco de la CruzChemical Engineer Teacher from Guadalajara University for

preparatory level.

I've been learning English language at the PROULEX Institute.

I did the GESE (Graded Examination in Spoken English) from Trinity College London.

http://www.trinitycollege.co.uk/site/?id=368

My level is intermediate .

• I have been teaching chemistry, physics and mathematics for teens and adults with an intermediate level around two years.

Inorganic binary compounds Writing and Naming

AcidsProf. Marco Antonio Orozco de la Cruz

Binary Compounds

• We have to know that a binary compound is:

• A substance combine by two elements e.g.:

MCation

+ XAnion

MX+ -

• And the compounds are classified in:

A) Hydracids AcidsB) Oxides C) AnhydridesD)Salts

Kinds of Nomenclature

• Traditional

• IUPAC

• Now, we´ll show how to name some acids:

• First we will identify an acid compound:

Its name is derived by combination of the anion (“Non Metal Element”) , that we write on the right side of the formula and the cation (“Hydrogen”) we’ll write on the left side.

• Next we have some examples:

• HCl• HI• H2S

Naming by Traditional

• First: we are going to write the name from the Non Metal and then we add “–hydric”

• Second: write “acid”

• Example: HCl Chlorhydric acid

• Naming by IUPAC

We should use the next numerical prefixes1: Mono2: Di3: Tri4: Tetra5: Penta6: Hexa

• Now we’ll name some acid compounds

First, we are going to write the word “hydrogen”Second, we are going to add the name from

“Non metal element”Third, finally we add -ide

• Examples:

• HCl – hydrogen chloride• HI – hydrogen iodide• H2S – dihydrogen sulfide

If you have any question about this topic, send your question to:

marck045@gmail.com