The compound cobalt(II) chloride is a strong electrolyte. Write the reaction when solid cobalt(II) chloride is put into water.

A. CoCl₂(s) → Co₂+(aq) + 2Cl-(aq)
B. CoCl₂(s) → CoCl₂(aq)
C. CoCl₂(s) → Co₂Cl₂(aq)
D. CoCl₂(s) → CoCl₂(aq)

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