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

question 79

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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Definitions:

Leukoplakia

A white patch or plaque that develops on the tongue, the inside of the cheek, or on the floor of the mouth, often associated with smoking or other irritants.

Mucous Membrane

A protective lining found in various parts of the body such as nose, mouth, and lungs, producing mucus.

Xanthoderma

A yellow discoloration of the skin, often resulting from prolonged consumption of foods high in carotene or jaundice.

Yellow Skin

A condition known as jaundice, which indicates a buildup of bilirubin in the blood, often a sign of liver disease.