AndrewSmith2004 AndrewSmith2004

12-04-2018
Chemistry

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The ratio of carbon14 to nitrogen14 is 1-5 how many half lifes of carbon14 have occurred

The ratio of carbon14 to nitrogen14 is 15 how many half lifes of carbon14 have occurred class=

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traceymoseley5trasco traceymoseley5trasco

21-04-2018

sorry this is above my head

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