mass
amount
molar mass
concentration
solution volume
gas volume
molar gas volume
Avogadro
constant, L
number of
entities, N
P4. OXIDATION & REDUCTION: REDOX PROCESSES
P4.2 Electron transfer in redox processes
By the early c.20th, it seemed that all oxidation reactions had one feature in common: oxidation always appeared to involve a loss of electrons. So chemists developed a model for such reactions that focused on electron transfer. This extension of the concept made the classification far more widely applicable. Categories of reaction commonly encountered in elementary chemistry courses best explained in these terms include:
When ionic compounds are present in aqueous solution, the component ions are effectively independent of each other and free to move - by processes of convection and diffusion - within the bulk liquid.
Attempting the question via the linked pdf on the left provides practice at writing ionic equations for redox processes and separating them into
half-equations (ion-electron equations), one for the reduction process and a complementary equation for the oxidation process.
