viết pt phản ứng của c5h12, c4h8, c4h6; c3h6o, c2h6o, c2h4o với H2/ni, nhiệt độ, nước Br2, dung dịch AgNO3/NH3, Na, NaoH, CaCO3

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.