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).
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.
Sn4+ is fully oxidised, Sn2+ only half
To calculate percent yield, we need to compare the actual yield to the theoretical yield. The actual yield is the measured amount of product produced, which is 32.3 g of silicon carbide. The theoretical yield can be calculated by stoichiometry. Convert 50.9g of SiO2 to moles, determine the limiting reactant, and calculate the theoretical yield of SiC. Finally, using the formula: percent yield = (actual yield / theoretical yield) * 100, we find the percent yield.