00:01
All right, so in this question, we are asked to use diagrams to explain how the relative positions of the electrons change during a redox reaction.
00:10
So, in a redox reaction, one species or one part of the whole product loses electrons while another gains electrons.
00:23
So this transfer of electrons reduces in a change in oxidation, and that states, whatever states that the atoms are involved in.
00:36
So let's consider a simple example of a redox reaction, a reaction between zinc metal and hydrochloric acid.
00:47
So zinc plus hydrochloric acid, hco.
00:51
So we're going to say zinc plus 2hcl, and we'll write the product as zinc chloride plus hydrogen gas, h2.
01:09
So during this reaction, the zinc metal over here is oxidized.
01:15
It loses an electron.
01:17
It loses an electron to form zinc ions, while the hydrogen ions in the acid are reduced.
01:25
They gain electrons to form hydrogen gas...