Vinegar, salt are added to a tarnished coin and later on the coin is less tarnished. Is it a chemical of physical change? and why?
2006-12-10 05:52:36 · 6 answers · asked by Unanswered 1 in Science & Mathematics ➔ Chemistry
Tarnishing is a chemical change because it means the metal is being oxidized, or, in other words, it is reacting with something.
2006-12-10 05:54:53 · answer #1 · answered by Jordan H 2 · 0⤊ 1⤋
Tarnishing Silver Chemical Change
2017-01-12 04:59:04 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Chemical for sure...
The vinegar or salt again react with the metal n the coin,making the coin less tarnished.
(Hope I am right)
2006-12-10 05:56:23 · answer #3 · answered by The Slytherin Princess 1 · 0⤊ 1⤋
chemical change as evidenced by a color change (the tarnish color goes away because the tarnish is chemically changed)
2006-12-10 06:53:32 · answer #4 · answered by The Old Professor 5 · 1⤊ 0⤋
Silver oxide is likewise black in shade, and seems that it may be plenty extra in all possibility to style from oxidizers interior the ambience than H2S. There merely isn't that plenty H2S in ambient air.
2016-12-30 05:34:31 · answer #5 · answered by ? 3 · 0⤊ 0⤋
b
2015-12-14 07:47:50 · answer #6 · answered by ? 1 · 0⤊ 0⤋