/u/ISS5731's posts
H2O, H2S, H2Se, and H2Te (all 2 Hydrogens and a group 7 element) are all colorless. Is this just coincidence, or do the group 7 elements share a feature?
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When you dissolve NaCl in H2O, and then boil the solution so that the H2O molecules begin to evaporate, what keeps the evaporating molecules from carrying Na and Cl atoms away with them?
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If we had a train that could almost move the speed of light, and we put a camera inside it and let it film, what would we see playing back the video outside of the train?
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In an exothermic reaction, will the mass of a single molecule of each product be greater than a single molecule of each of the reactants (because they form compounds of lower energies and e=mc^2).
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I read on wikipedia that ferrocerium most commonly consists of 6 metals. What is the purpose of each of them?
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