The Best Explanation for the Dissolution of ZnS in Dilute

question 102

Multiple Choice

The best explanation for the dissolution of ZnS in dilute HCl is that

• A)the zinc ion is amphoteric.
• B)the sulfide ion concentration is decreased by the formation of H₂S.
• C)the solubility product of ZnCl₂ is less than that of ZnS.
• D)the zinc ion concentration is decreased by the formation of a chloro complex.
• E)the sulfide ion concentration is decreased by oxidation to sulfur.

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Definitions:

Heartwood

The dense inner part of a tree trunk, yielding the hardest timber, providing strength, and often darker than the surrounding sapwood.

Vessels

Hollow tubes that carry fluids such as blood, lymph, or sap within an organism, including arteries, veins, and capillaries.

Mycorrhizae

Symbiotic associations between the roots of plants and a fungus, enhancing nutrient and water uptake for the plant and providing carbohydrates for the fungus.

Atmospheric Nitrogen

The form of nitrogen gas (N2) that makes up about 78% of the Earth's atmosphere, largely inert and not directly usable by most organisms.