The Reaction:
Aluminum sulfate reacts with calcium in a single displacement reaction. Calcium is more reactive than aluminum, so it will displace aluminum from the aluminum sulfate solution. This results in the formation of calcium sulfate (CaSO₄) and elemental aluminum (Al).
Chemical Equation:
```
3Ca + Al₂(SO₄)₃ → 3CaSO₄ + 2Al
```
Explanation:
* Reactants: Calcium (Ca) and aluminum sulfate (Al₂(SO₄)₃)
* Products: Calcium sulfate (CaSO₄) and aluminum (Al)
* Reaction Type: Single displacement reaction
Observations:
* The reaction is exothermic, releasing heat.
* Aluminum will precipitate out of the solution as a solid.
* Calcium sulfate is soluble in water and will remain in solution.
Note:
* The reaction may be slow at room temperature but can be accelerated by heating.
* The reaction requires the presence of water for the aluminum sulfate to dissolve.
* The reaction is not a practical method for producing aluminum because it is more efficient to produce aluminum through electrolysis.
In summary, aluminum sulfate and calcium react in a single displacement reaction to form calcium sulfate and aluminum.