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Chemistry, 21.06.2019 16:00
Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change. when the temperature in a room increases from 25°c to 33°c, changes from a solid to a liquid. in a lab, methane and nitrogen are cooled from -170°c to -200°c. the methane freezes and the nitrogen . when gold is heated to 2,856°c it changes from a liquid to a .
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Chemistry, 22.06.2019 07:30
Compare and contrast the bohr model and the electron cloud models of the atom.
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Chemistry, 22.06.2019 12:30
If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?
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