Chemistry, 29.08.2020 23:01 genyjoannerubiera
The half-life of strontium-90 is 28 years. How long will it take a 80-mg sample to decay to a mass of 51.2 mg
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Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
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Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.
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The half-life of strontium-90 is 28 years. How long will it take a 80-mg sample to decay to a mass o...
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