AlBr in water doesn't simply dissociate. Instead, it disproportionates, reacting with water to form stable AlBr3 and releasing hydrogen gas. 30 words, done!
The compound in the image is AlBr, which is aluminum monobromide. Aluminum monobromide is a highly unstable and reactive compound that disproportionates in aqueous solution to form aluminum tribromide, AlBr3, and hydrogen gas, H2.
The balanced dissociation equation is:
2AlBr(s) + 6H2O(l) → 2AlBr3(aq) + 3H2(g)
Here, AlBr reacts with water molecules to form the more stable aluminum tribromide ions and hydrogen gas. The 2:6:2:3 stoichiometry ensures that all atoms are balanced on both sides of the equation.
It's important to note that aluminum monobromide is a metastable species, meaning it exists in a state of intermediate stability. It readily decomposes into the more stable aluminum tribromide and hydrogen gas. Therefore, while it can technically dissociate in aqueous solution, the dissociation is not direct and instead involves a disproportionation reaction.