Chemistry, 12.01.2021 07:10 StupidFatChipmunk
(Science question). How much of a 1.0 g polonium-214 sample remains after 818 microseconds? The half life of polonium -214 is 163.7 microsecond?
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What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers
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Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
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Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?
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(Science question). How much of a 1.0 g polonium-214 sample remains after 818 microseconds? The half...
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