4 ms·
Knight describes the color changes as the vanadium is reduced - yellow -> green -> blue -> violet as the vanadium receives electrons from the zinc. But then lat
by planckscnst 12y ago
Knight describes the color changes as the vanadium is reduced - yellow -> green -> blue -> violet as the vanadium receives electrons from the zinc. But then later, he describes the battery. "In one tank, the vanadium releases electrons, turning from yellow to blue." At least one of these statements are incorrect.
- avn2109 12y ago>> "One of these statements are incorrect" One _or more_ are incorrect :)
- thomasvarney723 12y ago"At least one of these statements are incorrect."
- mikexstudios 12y agoSee: https://en.wikipedia.org/wiki/Vanadium#Compounds https://en.wikipedia.org/wiki/Vanadium#Compounds The latter statement is incorrect, but it's an easy to make mistake. What he probably meant was that "in one tank, the vanadium releases electrons, turning from blue to yellow while in the other tank, vanadium accepts electrons, turning from yellow to blue."