carbon 14 has a half life of 5,730 years. If a sample contained 70mg originally, how much is left after 17,190 years

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

Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. which do you think will be the major product?

A5.00 g of a in . g of at aa 5.00 g of b in . g of .?at .