If I have two elements A and B, is the compound AB the same as BA?

Raziel2701

Is there a specific reason for how compounds are named? Like NaCl for instance, what's the criteria to have NaCl rather than ClNa?

Simon Bridge

There is a tendency to put the positive ion (or the element that acts as a donor of electrons) first so Na trumps Cl for first place - also why water is H₂O and not, say, HOH. As you advance through chemistry you'll find there are lots of equivalent ways of writing out chemical names.

Borek

The only specific reason is that IUPAC defined naming rules so that when we talk about compounds we can name them in a way that is unique and unambiguous.

Not that all names assigned using IUPAC rules are unique and unambiguous, as the rules evolved with time, so some older publications can use different names than the current ones.

chill_factor

yes its the same thing lol. in general elements commute unlike operators in QM.

this works only for elements though. in polymers and in anisotropic materials order of the constituents matters.

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Raziel2701	If I have two elements A and B, is the compound AB the same as BA? Is there a specific reason for how compounds are named? Like NaCl for instance, what's the criteria to have NaCl rather than ClNa?

Simon Bridge Recognitions: Homework Help	There is a tendency to put the positive ion (or the element that acts as a donor of electrons) first so Na trumps Cl for first place - also why water is H₂O and not, say, HOH. As you advance through chemistry you'll find there are lots of equivalent ways of writing out chemical names.

Borek Admin	The only specific reason is that IUPAC defined naming rules so that when we talk about compounds we can name them in a way that is unique and unambiguous. Not that all names assigned using IUPAC rules are unique and unambiguous, as the rules evolved with time, so some older publications can use different names than the current ones.

chill_factor	If I have two elements A and B, is the compound AB the same as BA? yes its the same thing lol. in general elements commute unlike operators in QM. this works only for elements though. in polymers and in anisotropic materials order of the constituents matters.