it reacts with h2s gas present in air to form black silver sulphide so it looses it shine
ornaments of silver look dull because silver reacts with h2s gas present in air to form black silver sulphide so it looses its shine
Silver tarnishes when exposed to air turning dark. But gold stays shiny! The ornaments probably do not use gold and silver, but instead less expensive metal alloys with the same colors. These alloys tarnish or corrode over time.
Pure silver, gold, and platinum are very unreactive so they do not become dull.
That would be none of them, unless the coin was altered sometime after production.
no
Arsenic is shiny,gray,brittle metallic looking solid.The dull coating is made of arsenic oxides.
shiny
I think heart gold and soul silver will be coming out sometime in the fall of 2009 so it's not too long of a wait.
yea, in. 2010 sometime, probably around march-april 2010 in aus.
To dull shiny gold, you can use a matte finish spray or apply a chemical solution that creates a patina effect.
In a silver-gold alloy, silver is the solvent and gold is the solute. Silver acts as the base in which gold is dissolved.
Silver nitrate have colourless crystals if it is pure.