20 Points to first correct answer! Identify the missing coefficient in the balanced equation and classify the type of reaction. Cl2O5 + H2O ⟶ ___HClO3 1; Combination 1; Decomposition 2; Combination 2; Decomposition

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.

The answer is a. stable, hope i ya