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Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

What’s the percent by mass of carbon in c10h14n2

How much would the freezing point of water decrease if 4 mol of nacl were added to 1 kg of water (kf=1.86 degrees c/(mol/kg) for water and i=2 for nacl a- 7.44 degrees c b- 14.88 c 3.72 d 1.86