It was found that 249 of carbon was combined with 5g of hydrogen in a hydrocarbon. If its molecular mass was 58, what is its empirical formula?

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents