anonymous
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When the oxidation number of an element decreases over the course of a reaction, that element has been ionized oxidized redoxed reduced
Chemistry
schrodinger
  • schrodinger
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anonymous
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anonymous
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anonymous
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anonymous
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anonymous
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anonymous
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is it b @blackeistien238821
anonymous
  • anonymous
do you kno @Bozhena
anonymous
  • anonymous
d
anonymous
  • anonymous
Which of the following describes an element that is reduced in a reaction? It acts in the reactant that is the reducing agent. It has a decrease in its oxidation number. Cd yields Cd2+ + 2e− Zn + Cu2+ yields Zn2+ + Cu
anonymous
  • anonymous
@Bozhena what about this
anonymous
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@blackeistien238821 do you kno
anonymous
  • anonymous
Red is when an elment GAINS e'. So if you have Cd yields Cd2+ + 2e− It means that Cd ox.n 0 passed to Cd++ ox.n +2. When you see + it means atom had something less, in this case he had 2è less than Cd 0. So Cd++ GAINS two electrons and become Cd 0.
anonymous
  • anonymous
Try to do the next reaction
anonymous
  • anonymous
so the answer would be a?
anonymous
  • anonymous
anonymous
  • anonymous
you tell me. If an element get reduced whan it gains electrons, and i told you that Cd++ gains two e' to get Cd.
anonymous
  • anonymous
so which is correct b?
anonymous
  • anonymous
anonymous
  • anonymous
both Cd and Zn get reduced.
anonymous
  • anonymous
so the answer would be?
anonymous
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