Chemistry, 23.04.2020 22:03 ashley110608
Janice needs to have a gastro-intestinal study. So she is given 375 mg of radiocontrast dye containg Barium-142. The half-life of Ba-142 is
10.6 minutes and its decay is followed by X-ray. After one half-life. Jag an
are of Ba-142 remains. After 31.8 minutes,
drag and drop answer here of Ba-142 remains. After drag and danserne half-lives, 11.7 mg of Ba-142 remains. After
drag and drop answer here minutes, 0.366 mg of Ba-142 remains Finally, after approximately 3.5 hours - drag and conser half-
Lives, only 0.000358 mg remains. The dye is no longer visible to the x-ray and Janice's study is over.
Answers: 1
Chemistry, 21.06.2019 16:00
Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle i need : ( asap i go it never mind
Answers: 2
Chemistry, 21.06.2019 22:30
Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial
Answers: 1
Chemistry, 22.06.2019 00:30
Which compounds have the empirical formula ch2o? a.c2h4o2 b.c3h6o3 c.ch2o2 d.c5h10o5 e.c6h12o6
Answers: 3
Janice needs to have a gastro-intestinal study. So she is given 375 mg of radiocontrast dye containg...
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