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Chemistry, 06.05.2020 06:30, jonnaevans4856
A tiny drop of blood can provide DNA for DNA fingerprinting, although the analysis requires much more material than the blood sample provides. How does the analyst obtain enough DNA for the test?
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Chemistry, 21.06.2019 17:30, badgirl2005
This is a mixture that has the same composition throughout.
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Chemistry, 22.06.2019 19:20, johnkings140
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the waterâsoluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) â pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
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Chemistry, 23.06.2019 06:00, asalimanoucha2v
â˘what conclusions can you make about the relationship between the volume of a gas and its temperature? ⢠what conclusions can you make about the relationship between the volume of a gas and its pressure? ⢠what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?
Answers: 3
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