Chemistry

What isotope of carbon can be used to figure out how old some objects are or when something died?

More Questions from Chemistry
How many structural isomers does propane have?
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What is added to drinking water and to swimming pools to serve as a disinfectant?
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What element was known in ancient times and referred to in Genesis as "brimstone"?
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Which of the following could not act as a ligand?
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Which of the following can possess chirality?
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Which of these is an element?
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What is the name of the temperature at which Helium I becomes Helium II?
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Which is a chemical often injected into lips for plastic surgery?
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