A mummy is a corpse whose skin and dried flesh have been preserved by either intentional or
accidental exposure to chemicals, extreme cold, very low humidity, or lack of air when bodies are
submerged in bogs. In 2009, a Scientific Team finds a mummy that contains 1.80 mg of Carbon-14
and 1.08 mg of its stable decay product, Nitrogen-14. Given that the Half-Life of Carbon-14 is 5,730
years, in what year did the person die? HINTS: To find the original mass of Carbon-14, assume that all
of the mass of Nitrogen-14 came from the decay of Carbon-14. You may need to make use of
logarithms.
Answers: 2
Chemistry, 22.06.2019 13:30, citlalli30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
Answers: 2
Chemistry, 22.06.2019 17:00, BREBRE8932
The biosphere of the earth is made up of what compound? organic or inorganic?
Answers: 3
Chemistry, 23.06.2019 03:00, dad46
What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?
Answers: 1
A mummy is a corpse whose skin and dried flesh have been preserved by either intentional or
accide...
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