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Evaporation only occurs at the surface of a liquid. true or false.
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Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
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Which stable element is used to determine the age of volcanic rock? a- argon b- carbon-14 c- potassium d- carbon-12
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Evaporation only occurs at the surface of a liquid. true or false....
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