Determine the formula of the compound formed from Al³⁺ and S²⁻.

Question

Quizplus · Accepted Answer

- Start by writing out the symbols for each element: Al, S, U, P, and O for the first compound, and S, U, P, and O for the second compound (note that S appears in both).
- Within each compound, use the subscripts to balance the number of each type of atom: 
  - AlS1U1P13+S1S1P0 becomes AlS1U1P12S1U1P1 
  - SS1U1P12−S1S1P0 becomes S1U1P11S1U1P1
- Then combine these to form the compound: AlS1U1B12S1U1B0SS1U1B13S1U1B0. Note that subscripts are simplified by adding together any ions with the same charge, and using the subscript notation (B) for any elements that appear only once in a molecule.

Determine the Formula of the Compound Formed from Al3+ and S2−

Determine the Formula of the Compound Formed from Al³⁺ and S²⁻