Rust colour!
Answer
Iron does not tarnish it will simply rust.
copper
Lithium, Sodium and potassium are all soft metals which can be cut easily with a knife. This freshly cut piece is a shiny silver color which tarnishes quickly to a dull grey as these metals react with the oxygen and water in air. Sodium tarnishes quicker than Lithium and potassium tarnishes quicker than sodium. Thus, Potassium tarnishes quicker than lithium and not the other way around.
Silver is used in film media because it tarnishes better than other materials.Tarnish is the process of oxidation, where a metal turns from some some shiny color to a darker non-shiny color.Three Examples of Tarnish:Gold: Starts a bright shiny gold color and tarnishes to a slightly darker dull gold colorCopper: Starts a bright shiny orange-gold color and tarnishes to a green patina colorSilver: Starts a bright almost white color and tarnishes to a very dark grey, almost black colorSilver provides the best tonal range, from light to dark. It can capture light from pure white to pure black (or very close).Additionally, silver tarnishes very consistently. This provides a smooth transition from light to dark on film.
gray. it's.................. the color of iron
The luster of iron is metallic and the color of iron is greyish-white.
Anything that tarnishes or rusts (silver, iron) will break down much, MUCH faster than something that doesn't (gold).
It is a chemical change. Jewelry that tarnishes undergoes oxidation.
it tarnishes
The color of iron (III) chloride solution is brown.
oxygen
A gray color
not pure iron... But you can provide a covering over iron to make it look like copper by just dipping it into copper sulphate solution .. Because Iron is more reactive than Copper ... it will displace it in the solution .. the color of solution will change so as the color of iron!