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48139
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Refining Avogadro’s number on way to new kilo.

22.07.2015
techemy.com news

Technical work on techemy.com

03.07.2015

Elements of group IB: Cu Ag Au

Copper. Copper compounds.
Silver. Silver compounds.
Gold. Gold compounds.

Refining Avogadro’s number on way to new kilo.
22.07.2015
Technical work on techemy.com
03.07.2015

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