Chemistry, 03.08.2021 16:50 cocomorillo35181
Consider the following reactions: A. titanium-54 emits an alpha particle; B. vanadium-50 emits an alpha particle; C. zirconium-93 emits a beta particle. Part A Rank the resulting nucleus by atomic number, from most to least.
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How much energy moves onto the next level, in an energy pyramid
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Chemistry, 22.06.2019 01:20
1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.
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Chemistry, 22.06.2019 09:00
Particles vibrate in a rigid structure and do not move relative to their neighbors.
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Consider the following reactions: A. titanium-54 emits an alpha particle; B. vanadium-50 emits an al...
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