Convert 2.3*10^9 seconds into years.

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

How many atoms are there in 5.70 mol of mg

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?