The chemical formula for the compound strontium sulfide, which contains sr2+ and s2– ions, is

The chemical formula for the compound strontium sulphide would be SrS.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Rn in the right answer