Question

Lucy noticed that her coin collection had begun to tarnish. Some of the metal in the coins had begun to change color. The formation of tarnish is most similar to which of the following changes?

A. Burning a piece of paper to ashes in the fireplace.

B. Dropping a dinner plate on the floor.

C. Shredding a piece of paper into hundreds of tiny strings.

D. Melting ice cubes in a glass of juice.

Answer 1

Burning a piece of paper to ashes in the fireplace. :)

Answer 2

A coin collection developing tarnish is most similar to A. Burning a piece of paper to ashes in the fireplace.

A coin developing tarnish is the result of a chemical reaction between silver and Sulphur which leads to the formation of silver sulphide which is the chemical name for tarnish.

A piece of paper being burnt is also a chemical reaction as it involves paper being changed on a molecular level to something else.

The other options are incorrect because:

• dropping a dinner plate on the floor is neither a chemical nor a physical reaction
• shredding a piece of paper is not a chemical reaction
• melting ice cubes is a physical reaction not a chemical one.

In conclusion, both the burning of paper and the formation of tarnish are chemical reactions and so are the most similar.

Find out more at https://brainly.com/question/20670910.