A chemist adds 260.0 mL of a 0.0832M potassium permanganate (KMnO_4) solution to a reaction flask. Calculate the mass in grams of potassium permanganate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

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

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.