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It's called oxidation. Rust if it were on steel. Oxygen in the air combines with the silver and causes it to darken.
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∙ 13y ago
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What color reflects more heat between white and silver?
It depends if the silver is metallic (shiny) or matte (dull). Metallic silver would reflect more heat than white, but matte silver would reflect less heat than white.
Is feldspar shiny or dull?
i think that it is dull
What color is tin?
Silver nitrate have colourless crystals if it is pure.
What does the fact that mower blades become dull tell you about the hardness of a blade?
It shows that the blade is not that hard since grass can make the blades dull.
Do tweezers get dull?
Apparently they do as I have a collection of five dull tweezers in my medicine cabinet and will have to purchase a new one. My question is....how come? I only use them to pluck my eyebrows occasionally.
Is old silver shiny or dull?
It depends on the age of the silver, if it is more than 4 years old it will be dull.
Why does silver look dull after sometime?
oxydization
Why do ornaments of gold and silver look dull after using for sometime?
ornaments of silver look dull because silver reacts with h2s gas present in air to form black silver sulphide so it looses its shine
What is color of ductile iron?
Grey, dull silver.
Color and crystalline form of calcium?
dull grayish silver
What two colors make pewter?
Dark, Dull Grey
Is dull surface a good radiator of heat?
It is in fact the best radiator. Dull black is the best absorber and emitter. Then shiny black, followed by white, then silver. While the best reflector goes the other way around (silver's the best, then white, followed by shiny black, then dull black)
What colors go well with pewter?
It's a dull silver color that looks were metallic.
What colors combind to make silver?
To form a dull version of silver you combine gray and white. If you want the exact color of silver you can always just go buy anything in that color.
Is there a metal that never dulls?
Pure silver, gold, and platinum are very unreactive so they do not become dull.
Why are norms of gold and silver look dull after sometime?
it reacts with h2s gas present in air to form black silver sulphide so it looses it shine
What happens when silver reacts with air?
it tarnishes and can make a dull layer of metal oxide on the surface"tarnish" or oxidation.
