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29 February, 00:46

What could you determine about a gold necklace that bubbles when exposed to an acid?

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  1. 29 February, 04:33
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    You can determine whether your necklace is real gold or not which is done by exposing the necklace to an acid. It is from the fact that gold would dissolve in aqua regia. So when bubbles appears, it most likely be that the gold is dissolved and is real.
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