Chemistry, 29.06.2019 13:30 kentavonwilliam
What is the speed of an electromagnetic wave with a frequency of 1.33x10^17hz and a wavelength of 2.25nm?
Answers: 1
Chemistry, 22.06.2019 04:30
Using the periodic table, complete the table to describe each atom. type in your answers
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Chemistry, 22.06.2019 17:00
How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process
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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?
Answers: 2
What is the speed of an electromagnetic wave with a frequency of 1.33x10^17hz and a wavelength of 2....
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