How many how many moles of N2Os are produced when 3.00 mg O2 react completely in the following equation ? 5O2 -->> 2N2Os

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.

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

They both go downwards and the can break apart rocks 

Ithink chemical bonding