To cook pasta you add salt to make the water boil at a higher temperature. What is the boiling point of a one gallon (4 L) pot of water that has 2 tablespoons (34.12 g) of salt (NaCl) added to it?

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Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?