Words to Describe counterion

How counterion often is described ("________ counterion")

• organic
• negative
• single
• hydrated
• same
• ion
• condensed
• excess
• reactive
• specific
• common
• primary
• suitable
• appropriate
• mobile
• hydrophobic
• corresponding
• monovalent
• solvent
• multivalent
• positive
• added
• univalent
• inert
• chiral
• exchangeable
• dominant
• large
• proper
• bound
• complex
• preferred