Question

people have used silver (ag) throughout history to make jewelry and silverware. silver items are valued for their shiny appearance, but over time, they can become dull. the dullness comes from a layer of tarnish that gradually forms on the surface of silver items. tarnish, which is made of silver sulfide (ag₂s), forms when silver combines with hydrogen sulfide (h₂s) from the air. fortunately, you can remove tarnish by polishing silver.

in the chemical reaction described in the passage, which of the following are products? select all that apply.

• hydrogen sulfide (h₂s)
• silver sulfide (ag₂s)
• silver (ag)

Explanation:

In a chemical reaction, products are the substances formed from reactants. The passage states silver (Ag) and hydrogen sulfide (H₂S) react to form silver sulfide (Ag₂S, tarnish). So Ag and H₂S are reactants, while Ag₂S is the product.

Answer:

silver sulfide (Ag₂S)