Respuesta :
Answer:
In aqueous solution, HF is an acid, exist as a mixture of molecules and ions
CH3CN is none of the above, entirely in molecular form
NaCIO4 is a salt, entirely as ions
Ba(OH)2 is a base, entirely as ions
The substance exists in aqueous solution entirely in molecular form is Methyl cyanide, entirely as ions is NaClO₄ & Ba(OH)₂ and HF as a mixture of molecules and ions.
What is aqueous solution?
Aqueous solutions are those solution in which water is present as a solvent and we know that nature of water is polar in water means it consist positive or negative charges.
- HF is a weak acid and it shows partial dissociation only, so it is present in the mixture form of molecules and ions.
- Methyl cyanide is a covalent molecule not dissolve in aqueous solution and present in the molecular form.
- NaClO₄ is a salt and it is completely dissolve in aqueous solution and present in the ions form.
- Ba(OH)₂ is a strong base and it is also completely dissociates into their ions.
Hence NaClO₄ & Ba(OH)₂ is completely dissociates into ions.
To know more about aqueous solution, visit the below link:
https://brainly.com/question/14554879
