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Q4 Magnesium chloride (MgCl) is highly soluble in water. In North America, magnesium chloride is produced primarily from Great Salt Lake brine. Calculate net force (Fs) in [N] between a Mg iron and Cl- iron that is separated by an equilibrium distance r.. (the ionic radii of the ions are:0.072 nm and r = 0.181 nm) Express your answer in N in engineering notation to one significant figure. Do not include the units.

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