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Chemistry, 21.06.2019 20:30
Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?
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Chemistry, 21.06.2019 22:20
Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hรผckel 4n+2 rule e. the compound must have a neutral charge
Answers: 2
The osmotic pressure of a solution containing 22.7 mg of an unknown protein in 50.0 mL of solution i...
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