Balance the following chemical reactions, determine the type of reaction and whether each is a redox reaction: Al2(SO4)3 + Ca(OH)2 ---> Al(OH)3 + CaSO4.

Answer 1

Al₂(SO₄)₃ + 3Ca(OH)2 ==> 2Al(OH)₃ + 3CaSO₄ ... balanced equation

Type of reaction is double displacement. This is NOT a redox because none of the elements involved have changed oxidation number, i.e. no electrons have been transferred.