Hello there,
You asked: Al has an oxidation number of 3 and Cl has 1. So, the most likely formula unit of the compound is AlCl3.
Your correct answer would be: The Djibouti Code of Conduct of the UK government. Helped Indian Ocean Trade since its commitment is to prevent repression and armed robbery against ships. Countries have signed this agreement showing mutual respect for their marine protection and benefits.
Hope this helps.
~Hottwizzlers