Balance the unbalanced equation given and match each substance to the correct coefficient as indicated.Al2S3(s) + H2O(l) → Al(OH)3(aq) + H2S(g)

To balance the chemical equation Al2S3(s) + H2O(l) → Al(OH)3(aq) + H2S(g), we need to ensure that the number of atoms of each element is the same on both sides of the equation.

Step 1: Identify the number of atoms for each element on both sides of the equation.

On the left side, we have 2 Al atoms, 3 S atoms, and 2 H atoms. On the right side, we have 1 Al atom, 3 O atoms, 3 H atoms, 2 H atoms, and 1 S atom.

Step 2: Balance the Al atoms.

To balance the Al atoms, we can put a coefficient of 2 in front of Al(OH)3 on the right side. Now, the equation looks like this:

Al2S3(s) + H2O(l) → 2Al(OH)3(aq) + H2S(g)

Step 3: Balance the S atoms.

To balance the S atoms, we can put a coefficient of 3 in front of H2S on the right side. Now, the equation looks like this:

Al2S3(s) + H2O(l) → 2Al(OH)3(aq) + 3H2S(g)

Step 4: Balance the H and O atoms.

To balance the H and O atoms, we can put a coefficient of 6 in front of H2O on the left side. Now, the equation looks like this:

Al2S3(s) + 6H2O(l) → 2Al(OH)3(aq) + 3H2S(g)

Now, the equation is balanced. The coefficients are 1 for Al2S3, 6 for H2O, 2 for Al(OH)3, and 3 for H2S.