4. When 50.0 g of sulfur (S8) reacted in an experiment according to the following reaction, 56.7 g of Fe2S3 were produced. Calculate the percent yield for this reaction.

16Fe + 3S8 —-> 8Fe2S3

What does the process of natural selection involve

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.

Which states of matter have particles that move independently of one another with very little attraction?