Chemistry, asked by Dfhiuyhjk, 1 year ago

Rust on the coin. Why does it appears dull? Explain the reason.

Answers

Answered by aishakatiyar12

Over time coins get dull because of their composition since they are purely made from copper and as a result copper reacts with oxygen and other gases in the air and therefore lose their shininess as copper reacts with oxygen in the air to make copper oxide and therefore turn dull

Previous Question

Next Question

Similar questions

Math, 8 months ago

(5)³ – (3.75)³ – (1.25)³– 3(3.75) (6.25) = ? a) 0 b) 1 c) -1 d) -2.5 e) None of these How to round it off to get 0!??

Math, 8 months ago

Using suitable identity simplify each of the following a) (ax2 – by)2 Answer the question please ☺️...

Science, 8 months ago

how will you prepaere yourself for the difficulties of a dessert trip what kind of weather would one likely to be on the expendition...

History, 1 year ago

Describe any three main features of hitler's foreign policy...

English, 1 year ago

Your grandfather had serve heart attack and is hospitalize. Write a letter to him that you're sad to hear about it and could not visit him in the hospital due to your exams.

Geography, 1 year ago

Is our universe expanding...

Biology, 1 year ago

Alisha prepared a mount of human cheek cell by staining it with methylene blue.But she did not see ribosome in the cell.This is because: (a) Human cheek cells don't have ribosomes (b) They are too small to be seen under the compound microscope (c) Ribosones don't get stained by methylene blue (d) The microscope was not focused correctly Choose the corect option and give its reason(...

English, 1 year ago

ASLyou visit a place of historical importance with your friends & came across people who scribble their names & messages on the walls of the monuments.you feel this act not only showed peoples indifference for their culture but also reduce the beauty of this monuments. discuss with your partner...