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Which sample at stp has the same number of atoms as 18 liters of ne at stp
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If a computer chip switches off -on-off in 0.015 us, what is the switching time in nanoseconds?
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Chemistry, 23.06.2019 16:50
How can a scientist assess whether a pure niobium (nb) sample is responsible for contaminating the lab with radioactivity? test the niobium sample to see whether it now contains other elements.test the niobium sample for the presence of niobium oxide compounds.heat the niobium, and see if the level of radioactivity in the lab increases.place the niobium under pressure, and see if the level of radioactivity in the lab increases.
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What is the definition for domain bacteria?...
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