The Substance, CoCl₂, Is Useful as a Humidity Indicator Because

question 15

Multiple Choice

The substance, CoCl₂, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist air. What is its name?

• A)Cobalt dichloride
• B)Cobalt(II)chloride
• C)Cobalt chloride
• D)Cobaltic chloride
• E)Copper(II)chloride

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