Buenas tengo una tarea de quimica y no se como balancearlo la tarea es de balanceo de ecuaciones
1)P+Cl2—> PCl5

2)ZnS+O2—>ZnO+SO2

3)KMnO4+H2SO4—>K2SO4+MnSO4+H2O +O

4)Fe2O3+C—>Fe+CO

5)Hg+H2SO4—>HgSO4+H2O+SO2​

A. 17 hope this dudet

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.