Chemistry, 09.09.2021 17:30 benjaminmccutch
7) Calculate the density of helium (in g/L) if a balloon with a capacity of 5.00 L holds 0.890 g.
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Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating
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What forms when chemical reactions combine pollution with sunlight?
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Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
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Chemistry, 22.06.2019 21:30
Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.
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7) Calculate the density of helium (in g/L) if a balloon with a capacity of 5.00 L holds 0.890 g....
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