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What else can I help you with?
What happen when you put a piece of copper in silver nitrate solution?
When a piece of copper is placed in a silver nitrate solution, a displacement reaction occurs where the copper solid displaces the silver ions in the solution, forming copper nitrate and solid silver. This reaction is represented by the equation: Cu(s) + 2AgNO3(aq) -> Cu(NO3)2(aq) + 2Ag(s).
What does a crown plus the numbers 36 mean on gold jewelry?
The crown is Europe's stamp for silver. It simply means that the piece was made in Europe. European jewelry may also have a lion stamp. Is it possible that this piece is actually silver and not gold? If so, the 36 means that the piece contains 36% silver.
What does 925 A mean on silver?
925 is the mark for sterling silver, meaning the piece is 92.5% silver with 8.5% of other metals, usually copper.
How much is a 1974 silver 50 cent piece worth?
50 cents. It's made of copper-nickel, not silver.
What is the value of a 7 piece copper on silver tea set with a crown and bsc letters stamped on bottom?
Probably from $125 to $400 depending on the exact model of BSC. It is...Birmingham Silver Co.Brooklyn, NY and Yalesville, CT c. 1957-Present Successor to GoldfederSilverware Co.
What happens when a silver piece of zinc is placed in a blue solution of copper ii nitrate?
The silver piece of zinc dissolves forming zinc ions. Copper(ii) reduce into copper(i) ions. The blue color of the solution decreases.
Chemical Composition of sterling silver?
The most common metal with which silver is combined to create sterling silver is copper. The mix rate is 92.5% silver to 7.5% copper. This is why sterling silver is often stamped with "925" somewhere on the piece
What is 22k rate of gold?
The Karet weight of a piece of gold states how much of the piece is actual gold and not silver or copper. A piece that is 22k means that it is 91. 6% pure gold.
What does 025 mean on a silver piece?
Oh, dude, 025 on a silver piece means it's 2.5% pure silver. So, like, if you were hoping for 100% pure silver, sorry to burst your bubble. But hey, at least you've got a little bit of shiny silver in there!
What does 925 on a silver chain mean?
"925" on a silver chain refers to the purity level of the silver. It means the chain is made of sterling silver, which is 92.5% pure silver mixed with 7.5% of another metal, usually copper, to increase its durability.
How many Cu atoms are present in a piece of sterling-silver jewelry weighing 33.14 g?
To determine the number of Cu atoms in the piece of sterling silver jewelry, you would first need to convert the weight of the jewelry to moles using the molar mass of silver. Then, since sterling silver is typically 92.5% silver and 7.5% copper by weight, you can calculate the number of moles of copper present. Finally, use Avogadro's number to convert from moles to atoms.
How much silver is in a 50 pence piece?
None. It's made of copper-nickel. Silver was removed from circulating British coins in 1947, long before decimalisation.
