The blank is a structure in a cell that contains information that controls a cells function

Ethene molecular fórmula= c2h4molecular weight = 29.046g/molhope 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.