Mg+O=MgO which one is oxidized and which is reduced​

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers