Calcula la fórmula empírica para un compuesto que tiene los siguientes porcentajes en peso: C= 39,14% , H= 8,69% y O= 52,17%.​

Hydrogen is the most abundant element on the periodic table..hope it .

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.