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The anode become smaller as the reaction takes place.....the copper from the anode coats the silver coin....

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Q: When you coat a silver coin with CuSO4 what happens at the anode?
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What metal is melted to make a dime?

40% copper 60% silver. Coppers density makes it center it self and the silver will coat and fill the gaps just before being moving to lower floor of mint.


Can you buy sterling silver in a spray or tin?

Sterling silver is 92.5% silver - it generally comes as a block or, more commonly, as a coin or jewelry. I suppose it could, in principal, be ground into a powder and put into a tin, although I don't know why. I'm not sure, even theoretically, if it could be put into a spray, and I don't know what you would do with it if it could - I don't think it would stick to anything. On the assumption that you are looking to coat a base metal with a layer of silver (called "silver coated" if the layer is thin, and "silver plated" if it is thicker), you would use a process called electroplating, which requires an electrolyte solution, wire, a power source and a piece of silver.


What has happened to a real Tiffany bracelet which has changed from sterling silver to a copper colour?

It has become oxidised.1. To combine with oxygen make into an oxide.2. To increase the positive charge or valence of (an element) by removing electrons.3. To coat with oxide.


What material is a coat made of?

there are many different coats and each one is made of different material.It depends on what kind of coat your talking about. You have to know what kind of coat to know the material.


What is the difference between sterling and silver plate?

A silver item is normally made of a solid alloy of silver. Pure silver is too soft for use in most items that are subject to average wear (e.g. jewelry), so it has to be combined with a small amount of a harder metal such as copper. The fraction of silver is measured by a quantity called fineness. Normally it's expressed as a 3-digit number, and may or may not have an explicit decimal point. Regardless, it represents the amount of silver as a decimal fraction. For example, "925 fine" or ".925 fine" means that 925/1000, or 92.5% of the alloy is pure silver while the remaining amount is another metal or metals. Because solid silver alloys can be very expensive, it's common to make an item such as a serving dish or silverware out of a less expensive "base" metal and then simply coat it with silver in an electrolytic bath. It still has the overall appearance of silver but because you're only paying for a coating, the item will cost less. Also if the item is subject to a lot of wear the base metal may be chosen for extra hardness; then it may be possible to have it replated if the silver coating wears off.

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