Students observed the different sounds produced by tuning forks. Which tuning fork would produce a sound with the highest pitch? A.
385 Hz

B.
320 Hz

C.
515 Hz

D.
440 Hz

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.