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msbrth
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If a 12.0g sample of Radon222 decays so that after 19 days only 0.375g remains, what is the halflife of Radon222?
 2 years ago
 2 years ago
msbrth Group Title
If a 12.0g sample of Radon222 decays so that after 19 days only 0.375g remains, what is the halflife of Radon222?
 2 years ago
 2 years ago

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zaphod Group TitleBest ResponseYou've already chosen the best response.2
12>6>3>1.5>0.75>0.375 19days/5> ?
 2 years ago
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