you have a cube with 1 m each side filled with ethyl alcohol ( C2H5OH). Find the number of molecules inside of the cube if density of ethyl alcohol is 0.79 g/ml

Answer ozone (o3) is made of three atoms of oxygen, it is a molecule;

Well you can immediately rule out a and d because if a metal were to lose or gain protons, then it would become a different element all together. the answer here is b because the positive symbol with a number refers to how many electrons the metal can give away to become stable.

Iwould but i dont know the answer