Acarbon atom can bond with other atoms in a variety of ways. which set of bonds would a typical carbon atom form in a compound?

In this synthesis reaction what products will form

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

What is the percent by mass of oxygen in fe2o3