Redox Reactions Quiz

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Questions and Answers

Vad är redox?

  • En kemisk reaktion där atomer byter plats med varandra
  • En kemisk reaktion där molekyler klyvs i mindre delar.
  • En kemisk reaktion där atomer kolliderar med varandra
  • En kemisk reaktion där elektroner överförs frÃ¥n en atom till en annan. (correct)

Vad är oxidation?

  • När en atom, molekyl eller jon inte reagerar alls.
  • När en atom, molekyl eller jon klyvs i mindre delar.
  • När en atom, molekyl eller jon förlorar en eller flera elektroner. (correct)
  • När en atom, molekyl eller jon vinner en eller flera elektroner.

Vad orsakar att andra ämnen oxiderar?

  • Reducerande medel eller elektrondonatorer.
  • Vatten.
  • Syre
  • Oxiderande medel eller elektronacceptorer. (correct)

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Study Notes

  • Redox is a chemical phenomenon where oxidation states of atoms change.
  • This happens when one or more electrons are transferred from one atom to another.
  • Oxidation is when an atom, molecule, or ion loses one or more electrons.
  • Reduction is when an atom, molecule, or ion gains one or more electrons.
  • Redox reactions involve both reduction and oxidation happening simultaneously.
  • Redox reactions can occur in both directions depending on pE and pH values.
  • Oxidizing agents or electron acceptors cause other substances to oxidize.
  • Reducing agents or electron donors cause other substances to reduce.
  • Oxygen is a common oxidizing agent, but redox reactions can occur without it.
  • Redox reactions are important in many chemical processes.

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