Perbandingan sifat-sifat campuran dan sebatian1. Prepare a mixture of iron fillings and sulphur powder by mixing some iron fillings with some sulphur powder in an evaporating dish.

2. Prepare a compound of iron sulphide by strongly heating a mixture of iron fillings and sulphur powder in a test tube

3. Carry out the following test with the mixture and the compound.