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Chemistry, 22.06.2019 00:30
Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.
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Chemistry, 22.06.2019 12:10
If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?
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Chemistry, 22.06.2019 23:00
If two identical atoms are bonded,what kind of molecule is formed
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Chemistry, 23.06.2019 00:00
If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.
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Mathematics, 27.12.2019 11:31
Mathematics, 27.12.2019 11:31
History, 27.12.2019 11:31
History, 27.12.2019 11:31
History, 27.12.2019 11:31
English, 27.12.2019 11:31
Mathematics, 27.12.2019 11:31
Mathematics, 27.12.2019 11:31