HOCl dissociative into which 2 ions

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

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution