how do you know that something is an acid form its formula ?

Question

for example HCL we can name it hydrogen chloride or hydrochloric acid

which one is right . nd how do you if they want them to be name like an acid

how do u name

H2 SE
IS IT HYDROSELMEICE ACID

HI

IS IT HYDROIODIC ACID

Answer 1

Both are right. But hydrochloric acid is a more standard name.

If there is only on "H" atom in the compound, you need to start with "hydro-"

If there is more than one "H" atom in the compound, then you don't need to start with "hydro".

For example:
HCl - hydrochloric acid ;
H2SO4 - sulfuric acid.

Answer 2

Welcome to the oddities of naming things in chemistry.

HCl is a gas when not dissolved in water. Usually, the compound in water is called "hydrochloric acid" or "muriatic acid." If it's a gas without water, it's "hydrogen chloride."

There is a multi-national panel called IUPAC (the International Union of Pure and Applied Chemistry) that is "in charge" of naming chemicals. Chemicals may have a name that's it's "common" name (i.e., toluene) or an "official IUPAC" name (methylbenzene).

When in doubt, I'd look at the IUPAC name. If it has the word "acid" in it, it's an acid.

But note that "acid" can refer to a whole lot of things, depending upon a specific reaction. If you just want to know, "If I dissolve this material, will the pH be acidic?" then I'd go with the IUPAC name.

Answer 3

If its an acide, combine it with water and you will see H3O+ as a product, if its a base combine it with water and you will se OH- as a product in the formula
HCL(g) is hydrogen chloride and HCL(aq) is hydrochloric acide
becuz an acide must be aqueous

Answer 4

If it is an acid it will always have an (aq) after it denote that it is in an aqueous solution. So HCl(aq) is hydrochloric acid, HI(aq) is hydroiodic acid, and HCl is hydrogen chloride ; HI is hydrogen iodide.

Answer 5

In order to ber an acid, it must have a pH lover than 7

Answer 6

By the way, it's HCl - not HCL, because 'Cl' is chlorine.

Answer 7

look for hydrogen
for example
HCL
HF
H2SO4
these normally tend to be acids

if you see OH together it's usually a base