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Chemistry, 06.09.2019 23:10 almostnevercbbc
An exciton is: a charged particle made of electrons a charged particle made of holes a neutral particle made of an electron and hole a photon in an excited state
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Chemistry, 21.06.2019 13:30, gorbyalexis
One of the reactions in a blast furnace used to reduce iron is shown above. how many grams of fe2o3 are required to produce 15.5 g of fe if the reaction occurs in the presence of excess co? a.11.1 g b.22.1 g c.30.0 g d.44.2 g
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Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
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If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax
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An exciton is: a charged particle made of electrons a charged particle made of holes a neutral part...
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