What kingdom would an organism be in if it was unicellular and contained no nucleus

Theoretically, which metal should be the most reactive? hydrogen lithium francium fluorine

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

0.2348 grams of pbcl2 used to form 44.0 ml of solution.