- IS ok study a physic university for became an astronout?

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Suggest a pair of reagents (one carbonyl compound and one Grignard reagent) that could be used to prepare C4H10O? The total of the 3 numbers is 20. The product of the 3 numbers is 90. what are the numbers? Please help? Poll: Is the earth round or flat? Does anyone know if there is a connection between B12, B6 deficency and how alcohol effects you? Does the equation a^2 + b^7 + c^13 + d^14 = e^15 have a solution in positive integers?