1. It is usually used as the free ion , Ga 3 +. 2. :The problem is the sodium, which exists as a free ion in the bloodstream. 3. It cannot exist as a free ion in solution. 4. Ion dissociation into free ions lead to non-living polymerization. 5. An electrolyte is a substance containing free ions that behaves as an electrically conductive medium. 6. At this temperature, molecular bonds in the gases break, creating a plasma of free ions . 7. You do not write the redox state of ions in a compound, only for free ions . 8. The association is strongest as a covalent bond and weakest when the pair exists as free ions . 9. Al 3 + indicates that it is a free ion , which would usually mean that it is in solution. 10. An electrolyte refers to a substance that contains free ions and can be used as an electrically conductive medium.