What is the density (g/ml) of a sample of mineral oil if 250 ml has a mass of 0.23 kg?
a. 0.0092 g/ml
b. 0.92 g/ml
c.5.8 g/ml
d. 10.9 g/ml
e. 57.5 g/ml

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.