00:01
Hello, so today we're going to be talking about some slow reactions and some faxed reactions.
00:06
So what's a slow reaction? what takes quite a while to be...
00:10
What's a reaction that takes a while to be completed? well, what about resting? so resting is the reaction of iron with oxygen to create rest.
00:36
So let's balance this equation.
00:43
So here we are.
00:44
So iron is being oxidized and oxygen is being reduced.
00:52
And rusting takes a while to complete.
00:55
You know, like you buy something new.
00:57
It doesn't have any rust on it.
00:59
And then after a while, usually after something iron has been wet, starts to get oxidized.
01:08
Also, there's also tarnishing.
01:13
For example, your silver jewelry starts off all nice and shiny.
01:22
But then when it's exposed to sulfur containing gases like hydrogen sulfide, it will start to tarnish.
01:36
It'll form this sulfur sulfide.
01:53
This is also a redox reaction, and this also takes a while to complete.
02:00
Your silver jewelry will usually last a long time.
02:04
It doesn't turn all tarnished after...