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asanjog2755
05.05.2020 •
Chemistry
There are 3.20 × 10 22 atoms of copper in the outer shell of pennies. How many grams of copper is this? (Convert atoms to moles, then moles to grams)
Formula:
Molar mass:
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Ответ:
1. Strontium 2. Technetium 3. Silver
Explanation: