Which is anode and which is cathode? - Chemistry Stack Exchange
Feb 15, 2017 · The actual question is, if the cathode indeed is the negative electrode? So the question is still: Why would electrons move towards the cathode, which is negative? I have added an extra …
Positive or Negative Anode/Cathode in Electrolytic/Galvanic Cell
Sep 27, 2014 · 65 In a galvanic (voltaic) cell, the anode is considered negative and the cathode is considered positive. This seems reasonable as the anode is the source of electrons and cathode is …
physical chemistry - How to correctly define anode and cathode ...
Sep 9, 2020 · In a cathode ray tube experiment, the CRT would be the area of interest and electrons are ejected from the cathode into the tube and are incident on the glass behind the anode. The …
electrons - How did J. J. Thomson prove that the cathode rays were …
Dec 11, 2018 · Cathode "rays" had been known for some time before Thomson. They were first observed as experiments in gas discharge tubes started to exploit better and better vacuums (the …
Does the cathode always attain a positive charge or is it just a ...
Jul 12, 2024 · The chemistry is inappropriate in acidic aqueous solution H+ will be reduced before Zn++. Oxidation happens at the anode reduction at the cathode electron flow is from negative to positive. In …
How are cathode rays produced? - Chemistry Stack Exchange
Oct 28, 2014 · Why cathode rays are produced if pressure of the gas discharge tube is lowered to about $10^{-4}$ atm? How bombardment of glass of gas discharge tube from cathode ray result in a faint …
What is the flow of electrons, cations, and anions in a voltaic cell ...
Apr 10, 2019 · According to my notes and many sources on the internet, electrons and cations both travel from the anode (A in the image) to the cathode (B in the image). The idea of the salt bridge is …
Why is the anode in a galvanic cell negative, rather than positive ...
Feb 18, 2022 · Similarly in diagrams comparing galvanic and electrolytic cells, electrons move away from the anode to the cathode in the electrolytic cell, making the anode positive. This makes perfect …
electrolysis - Is a pure copper cathode necessary in the electrolytic ...
Nov 27, 2024 · The cathode (a thin copper sheet) is simply left in the final product of the refinery (a thick copper plate) - no one needs them separated, they are the same substance. The new cathode …
Why is the electrode potential for a cathode positive?
Jul 23, 2020 · The cathode always accepts electrons (reduction). The postive electrode is the one with the higher potential than the negative electrode. Since the potentials are all defined relative to a …