12. A solution of ammonium sulfate added to a solution of lead (II) nitrate, forms soluble ammonium nitrate and solid lead (II) sulfate,
Chemical equation

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?