The compound AlCl3 is known as Aluminum Chloride.
Explanation: Aluminum Chloride is formed when aluminum (Al) combines with chlorine (Cl). In this compound, one aluminum atom is combined with three chloride ions. Aluminum is a metal, while chlorine is a non-metal. This compound is often used in various industrial applications, including as a catalyst in chemical reactions and in the production of aluminum metal. Its chemical formula reflects the ratio of aluminum to chloride in the compound, which is why it is written as AlCl3.