Solution of task 49 of Chemistry Book Shimanovich 2003
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49. Which element of the fourth period - chromium or selenium - has more pronounced metallic properties? Which of these elements forms a gaseous compound with hydrogen? Motivate the answer with the structure of chromium and selenium atoms.
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- Updated on the site 16.03.2018
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Solution of task 49 of Chemistry Book Shimanovich 2003
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Cumulative discount
| 200 $ | the discount is 15% |
| 100 $ | the discount is 10% |
| 50 $ | the discount is 7% |
| 20 $ | the discount is 5% |
| 10 $ | the discount is 3% |
| 5 $ | the discount is 2% |
| 1 $ | the discount is 1% |
Check your discount
Amount of purchases from the seller: $
Your discount: %