Aluminum (Al) is a chemical element with the atomic number 13 and the symbol Al. It is a silvery-white, lightweight metal that is commonly used in various industries.

Al2037 is not a recognized chemical compound. It seems to be a combination of aluminum (Al) and a mysterious number 37.

AlCl3 is aluminum chloride, a compound formed by the combination of aluminum and chlorine atoms. It is a white or yellow solid that is soluble in water and is commonly used in industrial processes such as water treatment and as a catalyst in organic reactions.

Al(OH)3 is aluminum hydroxide, a compound formed by the combination of aluminum, hydrogen, and oxygen atoms. It is a white, gelatinous solid that is commonly used in antacid medications to help neutralize stomach acid.

AlPO4 is aluminum phosphate, a compound formed by the combination of aluminum, phosphorus, and oxygen atoms. It is commonly used as a food additive, in dental cement, and in the manufacturing of ceramics and glass.