What is the mass of 5.20 moles of Fe2O3 ?
Your answer

Fission of uranium-235 products energy and a. isotopes of smaller elements b. isotopes of larger elements c. lighter isotopes of uranium d. heavier isotopes of uranium

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li