Question

begun to change color. The formation of tarnish is most similar to which of the following changes? (A). shredding a piece of paper into hundreds of tiny strips (B). dropping a dinner plate on the floor (C). melting ice cubes in a glass of juice (D). burning a piece of paper to ashes in a fireplace​

Answer 1

Correct option:

(B). dropping a dinner plate on the floor

Explanation: Change is occur because of conduction.

Answer 2

The formation of tarnish is most similar to burning a piece of paper to ashes in a fireplace.

Explanation:

• The burning of a piece of paper can be related to tarnishing.
• Tarnishing refers to the change in the color of the metal. It forms a thin layer of corrosion.
• This layer can be formed on metals like silver, brass, copper, magnesium, etc.
• Tarnishing is a chemical reaction. Similarly burning paper is a chemical reaction as it emits various harmful gases.
• Other options are physical reactions. That does not involve any chemical reactions.