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Chemistry, 22.06.2019 07:00
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
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Chemistry, 22.06.2019 13:30
Why does asexual reproduction result in offspring with identicle genetic variation
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Chemistry, 22.06.2019 16:30
Correct relationship between molecular formula and empirical formula
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Chemistry, 22.06.2019 18:00
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
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Mathematics, 21.12.2020 21:10
Chemistry, 21.12.2020 21:10
Mathematics, 21.12.2020 21:10
Mathematics, 21.12.2020 21:10
Mathematics, 21.12.2020 21:10
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English, 21.12.2020 21:10
Chemistry, 21.12.2020 21:10
Mathematics, 21.12.2020 21:10