The explanation is simple: to avoid confusion.
It is quite legitimate to refer to Au as a chemical symbol.
The term acid does not refer to any single substance but a class of chemical compounds.
this may refer to the chemical compound tellurium diiode (tellurium(II) iodide) which is only known in the gas phase.
The chemical name is iron(III) sulfate. It is an ionic compound made up from the ions Fe3+ and SO4 2-. The three in brackets refer to the transition state of the iron cation.
The word 'iodine' can refer to either the corrosive and poisonous chemical element of the halogen group or a solution of this element mixed with alcohol. The solution is commonly used as a mild antiseptic.
We have chemical symbols so that we can quickly write about an element or compound with out having to write out the name every time you want to refer to it.
It is quite legitimate to refer to Au as a chemical symbol.
"Chemical name" would refer to a single chemical compound. But chocolate is not a single substance. It has many compounds in it, each of which would have its own chemical name.
No, methanol is not a chemical property of salt. Methanol is a separate chemical compound that is a type of alcohol, whereas salt is a compound made up of sodium and chloride ions. Chemical properties refer to the behavior of substances in relation to other substances, such as their reactivity or stability.
The term acid does not refer to any single substance but a class of chemical compounds.
this may refer to the chemical compound tellurium diiode (tellurium(II) iodide) which is only known in the gas phase.
They refer to the valency of the metal in the compound, such as Iron II or Iron III chloride.
The chemical name is iron(III) sulfate. It is an ionic compound made up from the ions Fe3+ and SO4 2-. The three in brackets refer to the transition state of the iron cation.
Salt is a compound made from Sodium and Chlorine. Its chemical formula is NaCl.Although made from two separate elements, a handful of salt is a pure substance not a mixture because it is a compound.
The word 'iodine' can refer to either the corrosive and poisonous chemical element of the halogen group or a solution of this element mixed with alcohol. The solution is commonly used as a mild antiseptic.
There is no such compound named Phosphorus bromine. It you refer to the product formed in the reaction of phosphorus and bromine, its Phosphorus Tribromide = PBr3
Im guessing you mean the name of the chemical with the letter N. Well it is nitrogen. Nitrogen oxide can refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds: Nitric oxide (NO), nitrogen(II) oxide