/u/the_quassitworsh's posts
If liquid helium is the coldest substance we have commercially available to us today, how did we first cool helium down to that temperature without the use of something colder?
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Why do some chemical reactions need catalysts (such as potassium permanganate), and what does the catalyst do if it is not used up?
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Is there a point with superheavy elements where the outermost valence electrons will be too far away from the protons of the nucleus to be held in their shells?
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[WP] One month ago, NASA released a press statement detailing the observational evidence we have for a very large 9th planet outside our solar system. However, after further investigation, it becomes clear the object in question is not a planet...
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When I taste something containing dissolved salt, am I tasting the sodium ion, the chlorine ion or a combination of both?
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