What's the Anode, Cathode, and Salt Bridge?

429,398

3,135 0

Published 2013-01-31

The basics of electric cells. Anode = Oxidation = Loss of Electrons. Cathode = Reduction = Gain of Electrons. Electrons flow through the wire from Anode to Cathode.

Check me out: www.chemistnate.com/

All Comments (21)

@MakUpLuv 7 years ago

guys u have to remember, the cathode is positive and the anode is negative in galvanic cells, (reaction occurs spontaneously) while its the opposite in electrolytic cells as its non spontaneous.
@xeraththunorson3234 6 years ago

i dropped out of highscool. and theres a lot of basics i missed also. so as someone who is now trying to learn id like to say thank you your descriptions and visuals make this really easy to comprehend!
@mrsemifixit 9 years ago

It helps to think of this "The anode is positive in a device that consumes power, and the anode is negative in a device that provides power" Where as in a battery the anode is "providing" electrons (negative) to the cathode.
@hillside6401 2 years ago

Exactly how our earth works. Sun is the cathode moon is the anode and the oceans are the salt bridge. The ground has a measurable negative charge and our sky(firmament) has a measurable positive charge. Very nice video!
@mariosantos9928 7 years ago

Watching this again before my CAPE exams tomorrow, helped a lot. Hopefully it comes in handy
@bbbbbbbbbrittany 10 years ago

This is exactly the explanation I was looking for. You are amazing!
@stairway_to_kevin 9 years ago

i've been having such a lame time trying to figure this out before I found this video. you've pointed me in the right direction. Now I just need to focus my learning on why one thing can be an anode while another is a cathode. Example: theres a copper half cell and an aluminum half cell, and the items involved are Cu metal, Cu+ ions, Al metal and Al+ ions (that is one bit of info that eludes my reasoning)
@amirreza310 10 years ago

Based on my understanding: The anode is the positively charged electrode (feature point of view) but it is negative electrode (functionality point of view). Anode is losing electron; therefore, it is positively charged electrode.
@SamuelOwusu01 11 years ago

Thank you so much for this video, since I'm a visual learner, the colors did really help a lot. Thanks again.
@viksharma2009 8 years ago

Extremely useful information, even to a layman. Thank you.
@raudelgutierrez962 7 years ago

So simple and so informative, thank you so much
@agoodeinvestment 10 years ago

thanks so much for the great video! I have one question, what is the liquid in the beakers?
@likepieordie1 8 years ago

also known as a volataic/ galvanic cell. electrolytic being the other type, that requires current while this one produces it.
@alefiakothambawala5834 10 years ago

This helped so much! Thank you!
@td6063 8 years ago

great video, cleared up a lot of stuff in my head
@archivistsethia9594 9 years ago

Thank you! This was tremendously helpful!
@jodykarly101 10 years ago

You're helping me not fail my GCSE's :3
@00marting 10 years ago

Thanks. Great video. Aren't the electrons coming out of the cathode in a cathode ray tube ? And isn't the cathode negative in physics ? Is there a definition for cathode, anode, positive electrode, negative electrode which coherent both in chemistry and in physics ? Also, according to your definitions, isn't it peculiar that Cu2+, a positive ion, is attracted by a positive electrode ?
@dalsenov 10 years ago

Great video! Very informative! Thank you.
@Tomkens1985 10 years ago

I think, that precise role of salt bridge is also worth an explanation.