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Oxydation numbers
Oxydation
Question | Answer |
---|---|
What is an oxidation number? | the number of electrons that an atom uses to bond with atoms from another element |
What is the oxidation number of an uncombined element? | 0 |
What is the oxidation number of a "combined Oxygen"(compound with an oxygen) | -2 |
What is the oxidation number of a "combined Hydrogen"(compound with an Hydrogen) | +1 |
What is the oxidation number of a simple ion | it would be the charge on the ion |
What is the oxidation number of a "combined Fluorine"(compound with an Fluorine)(generally applies to all halogens) | -1 |
what is the oxidation number of iron in iron(III)chloride | +3 |
what is the oxidation number of sulfur in SO3 2- (nitrate III) | +3 |
what is the oxidation number of K in K | 0 |
during a Redox reaction what is oxidation | the loss of electrons |
during a Redox reaction what is Reduction | The gain of electrons |
During the reaction Mg + Cl2 ---> MgCl2 what happens to the Mg | oxidation (Mg ---> Mg2+ + 2e-) |
During the reaction Mg + Cl2 ---> MgCl2 what happens to the Cl2 | Reduction (Cl2 + 2e- ---> 2Cl-) |
A reducing agent is? | A reagent that reduces (adds a electron to) another species |
A oxidising agent is? | a reagent that oxidises (takes electrons from) another species |