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Theory: Einstein's theory of relativity is a theory because it has been tested and verified innumerable times, with results consistently verifying Einstein's conclusion. However, simply because Einstein's conclusion has become a theory does not mean testing of this theory has stopped; all science is ongoing. See also the Big Bang theory, germ theory, and climate change. Hypothesis: One might think that a prisoner who learns a work skill while in prison will be less likely…
The Ionic Bond formation for Lithium Oxide. Lithium is in group 1 of the periodic table. A lithium atom will lose 1 electron to form a stable 1+ ion. An oxygen atom will gain 2 electrons to form a stable 2- ion.
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A vacuum flask is usually used to insulate it's contents… I've used them for a multitude of things ranging from keeping my coffee warm, to keeping liquid nitrogen from evaporating.
The reason these types of flasks are so efficient has to do with their thermodynamic properties. To understand how a vacuum flask works, we need to know the basic properties of a vacuum. Air just like any other molecule is a conductor of heat.
Firstly, a “layer of vacuum” is created around the thermos, it's crucial that the chamber is depressurized*.
