Question

A piece of silver is observed to be scratched bent and coated with tarnish. which is the chemical change?

a)getting bent
b)none of the above
c)getting scratched
d)getting coated with tarnish

Answer 1

Answer:

The answer is D

Step-by-step explanation:
Tarnish allows silver to lose its sheen. A is a physical change because it’s only bending it. Get scratched does not change its chemical properties.

Answer 2

The answer is D.

Step-by-step explanation:

Silver consists of 92.5% silver, and the remaining part is copper. ... Pure silver is not susceptible to tarnish in a pure oxygen environment. However, the copper that is contained in 925 sterling silver may react to the ozone and hydrogen sulfide in the air and cause sterling silver to tarnish.