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What element is used as a shield to protect people from radioactive substances?
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Chemistry, 21.06.2019 13:30
One of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description?
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Chemistry, 21.06.2019 18:30
In an oxidation-reduction reaction, oxidation is what happens when a reactant
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Chemistry, 21.06.2019 19:00
Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?
Answers: 2
Chemistry, 22.06.2019 04:30
Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole
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What element is used as a shield to protect people from radioactive substances?...
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