Question

eat dead centr Hanna buys a ring of gold and silver. After a few weeks, the silver part of the ring looks black and dull. The gold part stays shiny. What can you conclude about Hanna's ring?​

Answer 1

Hanna's ring is made of both gold and silver. The silver part of the ring looks black and dull because it has tarnished. On the other hand, the gold part of the ring stays shiny because gold does not tarnish.

Step-by-step explanation:

Hanna's ring is made of both gold and silver. The silver part of the ring looks black and dull because it has tarnished. Tarnish is a chemical reaction that occurs when silver metal reacts with hydrogen sulfide gas. This reaction forms silver sulfide, which appears as a black coating on the surface of the silver.

On the other hand, the gold part of the ring stays shiny because gold does not tarnish. Gold is a noble metal, which means it is resistant to oxidation and does not react easily with other substances.

So, we can conclude that Hanna's ring is made of both gold and silver, and the black and dull appearance of the silver part is due to tarnishing.