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Chemistry, 22.06.2019 09:20
How have the greenhouse gasses increased from the year 2000 to 2018
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Chemistry, 22.06.2019 14:30
Connect the whole numbers on the periodic table to indicate what they represent?
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Chemistry, 23.06.2019 02:00
The bohr model of the atom explained why emission spectra are discrete. it could also be used to explain the photoelectric effect. which is a correct explanation of the photoelectric effect according to the model?
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Chemistry, 23.06.2019 04:00
What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?
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Ammonia (NH3) dissolved in water is heated in a beaker. If initially there had been 60 grams dissolv...
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