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Sagot :
Answer:
The correct answer is option (4) NiCl2
Explanation:
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Let's solve this!
Nickel Chloride (NiCl2) is a compound (a salt) that when dissolved in water, a greenish yellow solution remains.
The other three salts: Hydrogen Chloride, Calcium Dichloride and Potassium Chloride are salts that do not form colored solutions.
Therefore, we can conclude that the correct answer is option (4) NiCl2
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