Explain why chemistry might be useful in a career you are thinking of pursuing

Chemistry might be useful for a career because you will need your elements to work on your field.If you are planning to be a doctor, you'll need chemistry to make medicine.Or being a firefighter you'll need to know how to put off fire with an fire extinguisher. Fire extinghishers contain O2.
Beneficial for some careers, that is why chemistry is important.

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.