Chemistry, 18.03.2021 01:50 ananyaamazing
Prin descompunerea termica a calcarului se obtin 2 oxizi...unul metalic iar celalalt nemetalic utilizat de plante in procesul fotosintezei. Descrietii pe scurt din punct de vedere al proprietatilor fizice, al maselor molare , dar si al utilizilor lor. Va rog ajutati ma
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Chemistry, 21.06.2019 17:10
For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above
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Chemistry, 21.06.2019 19:10
Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?
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Chemistry, 22.06.2019 02:40
Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?
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Chemistry, 22.06.2019 10:00
Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5
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Prin descompunerea termica a calcarului se obtin 2 oxizi...unul metalic iar celalalt nemetalic utili...
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