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Chemistry, 22.06.2019 17:30
The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?
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Chemistry, 23.06.2019 01:30
Which statement accurately represents the arrangement of electrons in bohr’s atomic model?
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Chemistry, 23.06.2019 04:30
Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction
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What is the mass of 0.2 mole of sodium....
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Mathematics, 30.01.2020 14:45
Mathematics, 30.01.2020 14:45
Mathematics, 30.01.2020 14:45