Qué tipo de reacción es el siguiente? SO2 + H2O
H2SO3
Reemplazo individual(simple)
Reemplazo doble
Combustion
Sintesis
Descomposicion

Well to my expert knowledge and my exquisite calculations i think the the negative ion # 412 is the key to sucess

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.

Ithink it’s one of those things that you put the object on

Cis the answer ur welcome if i get it wrong u don't have to me