sodium, Na is oxidized
Aluminium.
oxygen
Carbon
In the reaction MnO2 + 4HCl -> MnCl2 + Cl2 + 2H2O, manganese in MnO2 is getting oxidized from +4 to +2 (in MnCl2). Chloride ions in HCl are being reduced to chlorine gas (Cl2).
In the reaction between Br₂, Mg²Br⁻, and Mg²⁺, the element that is oxidized is magnesium (Mg). Magnesium undergoes oxidation as it loses electrons to form Mg²⁺ ions. Meanwhile, bromine (Br₂) is reduced as it gains electrons to form bromide ions (Br⁻). Therefore, magnesium is the element that is oxidized in this reaction.
No. Hydrogen reacts with oxygen to yield water.
In other words: 3x+y=2z+a x+3y=2b+3a z+y=3c+a (all equals:) c+y=b+a
Sodium (Na) is oxidized in the reaction to form sodium bromide (NaBr). In this reaction, sodium goes from an oxidation state of 0 to +1, indicating that it has lost an electron and been oxidized.
Fe
When potassium bromide (KBr) reacts with chlorine gas (Cl2), it forms potassium chloride (KCl) and bromine (Br2). This reaction is a redox reaction, with bromide ions being oxidized to bromine gas and chlorine being reduced to chloride ions.
The chemical equation for this reaction is: 2 AlBr3 + 3 Cl2 -> 2 AlCl3 + 3 Br2 It is a redox reaction where aluminum bromide is oxidized to aluminum chloride and chlorine is reduced to bromine.
Fe³⁺ (iron in the +3 oxidation state) is considered to be oxidized compared to its lower oxidation state, Fe²⁺ (iron in the +2 oxidation state). Oxidation refers to the loss of electrons, and when iron is oxidized from Fe²⁺ to Fe³⁺, it loses one electron. Therefore, Fe³⁺ itself is not oxidized; rather, it is the product of the oxidation of Fe²⁺.