Question

what happen when iron fillings and sulphur pouder are
1. mixed together
2.heated together
3compare the magnatic property before and after heating
when carbon disulphide is added

Answer 1

1. When iron fillings and sulphur powder are mixed both retain their properties. it means they have not undergone any chemical reaction. Therefore mixing of iron and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS ).

2. When iron fillings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS ). It is a new substance which has properties entirely different from Fe and S. Therefore heating of mixture of iron and sulphur
powder is a chemical change.

I hope this will help you ☺

Answer 2

1) When iron fillings and sulphur powder are mixed both retain their properties. It means they have not undergone any chemical reaction. Therefore mixing of iron and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS).

2) When iron fillings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS). It is a new substance which has properties entirely different from Fe and S. Therefore heating of mixture of iron and sulphur powder is a chemical change.

I hope this will help you