The table shows the characteristics of four substances after they are placed in water. Substance Ion concentration Electrical conductivity W Medium Good X Low Poor Y High Excellent Z None None Which compound is most likely the strongest electrolyte?

The strongest electrolyte separates into many ions in water, so it has a high ion concentration and excellent electrical conductivity. Substance Y has both of these characteristics, making it the strongest electrolyte. W has medium ion concentration and good conductivity, so it is a weaker electrolyte than Y.

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