The table below shows some properties of germanium, discovered in 1886 by Clemens Winkler. Germanium was Mendeleev's predicted eka-silicon. Why did its discovery support Mendeleev's ideas?
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Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.