Final answer:
When Cobalt (II) chloride is heated with water using a Bunsen burner, it undergoes a decomposition reaction, forming Cobalt hydroxide and Hydrochloric acid.
Step-by-step explanation:
When Cobalt (II) chloride is heated with water using a Bunsen burner, it undergoes a decomposition reaction. The formula for this reaction is:
CoCl₂(s) + 2H₂O(l) → Co(OH)₂(s) + 2HCl(g)
In this reaction, Cobalt (II) chloride breaks down into Cobalt hydroxide and Hydrochloric acid.