When iron and sulphur are mixed and heated in a test tube until the mixture glows red, the iron cannot be seperated from the sulphur using a magnet.
a) what name is given to sustances like iron and sulphur which contains only one kind of atom?
b) why can the iron not be seperated from the sulphur after heating?
a) what name is given to sustances like iron and sulphur which contains only one kind of atom?
b) why can the iron not be seperated from the sulphur after heating?