A typical tincture of iodine contains about 2.0% iodine by mass. Calculate the mass of iodine in a 500. g tincture.

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.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by

Salt in oceans comes from and of rocks