How to Write the Formula for Hydrosulfuric acid
How to Write the Formula for Hydrosulfuric acid

What are they? |
How are they named? | If we
know the formula | If we know the name
|
Examples | Exercises

What are they?

They are compounds formed by hydrogen and a
nonmetal, a
chalcogen (group 16) or halogen (group 17), in which the hydrogen has an
oxidation number +1.

In these compounds hydrogen is written to the left of the
nonmetal.

How are they named?

The name is
formed by two words. First word
“hydrogen”.
Second word is the root of the
nonmetal
with a suffix “-ide”.

Hydrogen
NONMETAL-ide

These compounds are called hydracids
because dissolve in water are acid dissolutions.
It uses the subscript (aq) to indicate an aqueous solution.

In aqueous solution
the
name is formed by two words. First word a prefix “hydro-” connected to the root
of the element with a suffix “-ic”.
Second word is the word “acid”.

Hydro-NONMETAL-ic
acid

If we know the formula

In the formula: Nonmetal is named with the suffix “-ide”

In the formula: In aqueous solution the
name is hydro-NONMETAL-ic
acid

If we know the name

In the name: The number of hydrogen
matches up with the oxidation number of nonmetal.

In the name: The number of hydrogen
matches up with the oxidation number of nonmetal.

Examples

In this group we include the
HCN.

Systematic name

Aqueous solution
name

HF Hydrogen
fluoride
HF(aq) Hydrofluoric
acid
HCl Hydrogen
chloride
HCl(aq) Hydrochloric
acid
H2S Hydrogen
sulfide
H2S(aq) Hydrosulfuric
acid
H2Te Hydrogen
telluride
H2Te(aq) Hydrotelluric
acid
HCN Hydrogen
cyanide
HCN(aq) Hydrocyanic
acid

Exercises

In Formulae you have an exercise to write the names of these substances
and to check your results. You also have the answer to the exercise.

In Names you have an exercise to write the formulae for these substances
and to check your results. You have to introduce the formulae without
subscripts, for example for water = H2O. You also have the answer to the
exercise.

Formulae 1
Names 1
Formulae 2
Names 2

You are watching: Hydracids. Info created by Bút Chì Xanh selection and synthesis along with other related topics.