Presentation on theme: "Conductivity in solution"— Presentation transcript:
1Conductivity in solution CompoundSolubilityMelting TimeConductivity in solutionConductivity as solid
2Main focus on conductivity We observe 2 types of behavior among compounds:One type of compound does NOT conduct electricity either as a solid or as a liquidComposed of neutral accumulations of atoms we call moleculesBehavior is typical of compounds of nonmetals, but there are exceptionsThe other type of compound does not conduct as a solid, but it does when dissolvedDissolving into oppositely charged particles we call “ions” that can move freely in a solutionThe presence of an electric field causes these charged particles (ions) to migrate which results in an electrical currentBehavior typical of metal and nonmetal together
3So what’s happening at the molecular level when these compounds dissolve?
5DiscussionWhy do the metal ions change from being soluble in solution to insoluble at the surface of the cathode?Why do the nonmetal ions change from being soluble in solution to insoluble at the surface of the anode?