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Misha Larkins [42]
3 years ago
12

What does 3 dots inside a silver ring mean?

Chemistry
2 answers:
Alex73 [517]3 years ago
8 0
It's reported inside the riddles or decorations
frez [133]3 years ago
3 0
There is really no way of knowing unless the particular 'maker' of the ring is reknown. I would suggest to take it to a jeweler to have it tested to see if it is real gold or gold platitum mixed etc. Most reliable jewelry stores will test it free, especially if you tell them, 'If this is real, I'm thinking about hiring you to polish it.; This is what I did the last time I found a gold/diamond ring, and after finding out it was the real deal, I paid them $25.00 to polish it, and it looks brand new.
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After the reaction between sodium borohydride and the ketone is complete, the reaction mixture is treated with water and H2SO4 t
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Answer:

The hydrogen can be gotten from the added Acid or water during "workup".

Explanation:

Basically we can say that the reaction describe in this question is a Reduction reaction because of the chemical compound called sodium borohydride. In the reaction described above we can see that there is a Reduction of ketone to alcohol by the compound; sodium borohydride.

For the reduction Reaction to occur the C-O bond must break so as to enable the formation of O-H bond and C-H bond.

So, "the reaction mixture is treated with water and H2SO4 to produce the desired alcohol", thus, the oxygen will definitely pick up the hydrogen from H2SO4 or H2O.

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