39. Consider the following unbalanced equation.
C3H16(g) + O2(g) → H2O(g) + CO2(g)
When the equation is completely balanced
using smallest whole numbers, the coefficient
of O, is
(1) 8 (2) 12 (3) 14 (4) 16

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.