Question

What is formula for aluminum chloride?

Answer 1

`AlCl_3`

Explanation:

Trichloroalumane (Aluminum trichloride or Aluminum chloride) is a chemical matter with the chemical formula `AlCl_3`.

For further info please visit:

https://pubchem.ncbi.nlm.nih.gov/compound/aluminum_chloride

Answer 2

`AlCl_3`

Explanation:

Aluminium chloride is an ionic compound, as it is made up of aluminium, a cation, and chlorine, an anion. Aluminium prefers to exist in the `+3` state (could you explain why?), while chlorine prefers to exist in the `-1` state. And so, we need three chlorine ions to balance with one aluminium cation, and so the formula is `AlCl_3`.

This compound is also known as "aluminium trichloride".

Source:
https://en.wikipedia.org/wiki/Aluminium_chloride