Which is the reason that ionic compounds are brittle? the bonds between the anions and cations are weak and therefore easily broken. a strong repulsive force is created when cations suddenly align. they involve positive metal ions in a sea of delocalized electrons. they share electrons, which makes the bond brittle.

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?