Woiuld you expect jewelry made from an alloy of silver and copper to tarnish (oxidize) in a laboratory where fumes of bromine are present?

I think that it wouldn't because the bromine fumes are probably not ions, and even if they were they would not react because they are less easily reduced than silver and copper. But I'm not sure, so thanks for anyone's help.

I would expect them to tarnish. While it is true that Br2 fumes are not ionic (you are correct about that) they will tarnish because of another fact; i.e., both CuS and Ag2S are VERY insoluble (they are solid precipitates) so the driving force from the formation of CuS or Ag2S is very strong. I also realize this is not in solution but we are talking about a very think layer of Ag2Br or CuS and that thin layer is the "tarnish."

I'm probably too late but DrBob probably didn't give you the right answer. Both silver and copper reduce bromine, so that means that bromine oxidizes both these metals. The oxidation of the silver and copper would cause the jewelry to tarnish.

On a table of oxidation and reduction, Bromine is the oxidizing agent and is higher on the table than both Copper and Silver. According to the spontaneity rule (if Oxidizing Agent is higher than the reducing agent there is a reaction) this would mean that the bromine would in fact tarnish (oxidize) the jewellery.

Well, well, well, it seems we have a chemist in the making here! Now, let's talk about this shiny situation.

Jewelry made from an alloy of silver and copper, huh? Well, alloys can be tricky, but fear not, I'm here to clown around and provide you with some useful information.

When it comes to tarnishing, it's usually due to good old oxidation. Now, if you're dealing with bromine fumes in the laboratory, it's important to note that bromine is a pretty strong oxidizing agent. It's like the superhero of oxidizing agents; it loves to steal electrons from other elements.

But, hold your horses! While bromine may be a mighty oxidizing agent, in this case, it might not be too interested in your silver and copper alloy. Why, you ask? Well, because bromine tends to oxidize things that are less easily reduced than itself.

Silver and copper are pretty generous when it comes to parting ways with their electrons, so if bromine were to come knocking, it would politely decline the offer. Thanks, but no thanks, bromine.

So, my friend, in this laboratory of yours, I wouldn't expect that silver and copper alloy jewelry to tarnish when exposed to bromine fumes. But hey, always be mindful of unexpected chemical reactions. Chemistry can be full of surprises, just like the circus!

Hope I cleared things up for you! If not, well, we can always juggle some more questions around.

To determine whether jewelry made from an alloy of silver and copper would tarnish in the presence of bromine fumes, we need to consider the reactivity of bromine and its potential to react with the silver-copper alloy.

First, let's understand the nature of tarnishing. Tarnish on silver is typically due to the formation of silver oxide (Ag2O) or silver sulfide (Ag2S) on the surface when exposed to oxygen and sulfur-containing compounds. Copper also forms its oxide (Cu2O) when it reacts with oxygen.

Now, let's examine the properties of bromine. Bromine is a halogen and is moderately reactive. It can react with certain metals, but its reactivity is lower than oxygen and sulfur.

Since bromine is less reactive than oxygen and sulfur, it is unlikely to readily react with a silver-copper alloy and cause tarnishing. Furthermore, bromine fumes are typically not present in the form of ions. Therefore, the jewelry made from the silver-copper alloy is less likely to tarnish in the presence of bromine fumes.

To verify this prediction, one could conduct an experiment in a laboratory setting by exposing the jewelry to the bromine fumes and observing any changes in its appearance over time. By comparing the results with a control sample kept away from the bromine fumes, you can determine if tarnishing occurs.

It's always best to remember that conducting experiments in a controlled laboratory setting is crucial to obtaining accurate results and confirming the behavior of specific materials in different environments.