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I have a gold ring but I think it may be gold on jewellers copper as the ring has become severely dented the hallmarks on the ring are WJJ 9K 375 a pair of scales with 75 inside?
Wiki User
∙ 12y ago
I have gold ring with diamonds it has the hallmark WJJ I think it's 9k it has more hallmark,s but can't make them out I want to no how you no if the diamonds are real
Wiki User
∙ 12y ago
Wendy Roberts
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Can you use cast iron clamps on copper pipe?
Not directly without some type of sleeving or protection between them. They are dissimilar metals and it will create electrolysis which will severely impair the copper pipe and create holes in the copper in the future.
What is Zambia main resources?
Zambia's main resource is copper. Unfortunately copper production along with other business development and even agriculture has suffered severely due to incompetent government interference.
How recyclable is copper?
Copper is so recyclable, that it has become a popular target for thieves.
Affects on household acids on copper?
it affects copper by sending the reaction into the copper and making it become a smaller object
Why is brass dangerous to use in bridges?
This could be because brass (and other copper alloys, like bronze) are severely affected by "work hardening" which means the more they are worked (bent, beaten etc.) the more hard they become. This makes them prone to brittle failure.
Can copper withstand weathering?
Copper is sufficiently resistant but alloyed become more resistant and strong.
Does dirty copper become clean in distilled water?
the dirty copper is actually the copper oxidizing, or rusting. Putting the copper in distilled water wont remove that rust.
What is Silver Nitrate plus copper?
As copper is more reactive than silver copper will displace silver and will become copper nitrate and silver is left by its own from the reaction
What color does copper become when it reacts with acetic acid?
When copper reacts with acetic acid, copper acetate is formed. Copper acetate is a dark greenish-blue colour.
How does copper and zinc sulphate react together?
zinc is more reactive than copper hence it displaces the copper in copper sulphate solution to become zinc sulphate and copper metal is formed
Can cadmium phosphorus and cobalt with copper and zinc become in a electromagnet field become a power generator?
Not unless they are moving. Plain copper is cheaper and would do the same.
What Gas is formed when copper oxide reacts with carbon?
with water aswell it would become copper carbonate
