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Chemistry, 21.06.2019 18:30
In an energy pyramid, which level has the most available energy?
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Chemistry, 22.06.2019 08:30
Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution
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Chemistry, 23.06.2019 10:20
El amoniaco y el fluor reaccionan para formar tetrafluoruro de dinitrogeno y fluoruro de hidrogeno. segun la reaccion: nh3 + f2 ⇒ n2f4 + hf si reaccionan 5 gramos de amoniaco y 20 gramos de fuor, ¿cuantos gramos de fluoruro de hidrogeno se producen?
Answers: 2
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