Chemistry, 25.09.2021 07:40 townykid96
If you start with 6.5 x 10^10 I-131 atoms, how many are left after approximately 1 month? I -131 has a half-life of 8.0 days.
Answers: 3
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The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?
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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.
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Chemistry, 23.06.2019 00:00
How many atoms or molecules are there in a mole of a substance?
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If you start with 6.5 x 10^10 I-131 atoms, how many are left after approximately 1 month? I
-131 h...
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