Phosphorus-32 has a half-life of 14.0 days. starting with 8.00 g of 32p, how many grams will remain after 112 days ?

a brain scan uses the radioisotope oxygen-15. the recommended dosage is 60 mci . a supply of 220 mci in 40 ml arrives at the lab. how many ml will be injected into a patient?
express your answer to one significant figure and include the appropriate units.

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space