Chemistry, 20.08.2021 04:30 nauticatyson9
A sample of wood from an old Egyptian tomb is found to have a carbon-14 activity of 7.07 disintegrations per minute per gram of C, while a sample of wood from a newly-cut tree has a carbon-14 activity of 15.3 disintegrations per minute per gram of C. The half-life of carbon-14 is 5730 years. Calculate the age of the old wood
Answers: 1
Chemistry, 22.06.2019 05:30
The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?
Answers: 1
Chemistry, 22.06.2019 20:00
Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)
Answers: 1
Chemistry, 22.06.2019 21:00
Rays from the sun are not considered matter true or false
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A sample of wood from an old Egyptian tomb is found to have a carbon-14 activity of 7.07 disintegrat...
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