2006-08-22 04:43:56 · 9 answers · asked by binudada92 1 in Science & Mathematics ➔ Chemistry
The Iron would not corrode providing there is still some Zinc left in contact.
In order for the Iron nail to begin corroding, all the Zinc metal which is electrically connected to the Iron would need to be removed. As long as there is a way for the electrons to make it to the Zinc metal, the Zinc will corrode first, leaving the Iron uncorroded.
2006-08-22 04:50:49 · answer #1 · answered by mrjeffy321 7 · 1⤊ 1⤋
Because in the galvanizing process, there is a small layer of steel that has actually bonded with the zinc. The white stuff is just excess. If you were to buy a sheet of "satin coat" steel, it would have this excess wiped off, ready for painting (thats what they use for auto bodies).
2006-08-22 04:52:49 · answer #2 · answered by frigon_p 5 · 0⤊ 1⤋
ok so at the beginning that's no longer the semen that travels to the egg that's the sperm. Semen is what the sperm are in while they arrive out. The sperm leaves the semen interior of a couple of minutes and travels into the womb. Then it travels via the tubes to the place it expects the egg to be. which could take hours or longer based upon how nicely the sperm swim and how on the instant they bypass. maximum sperm are no longer formed suitable and that they wander off or swim around in circles or merely ordinary die earlier they get there. yet in view that there are thousands of them that's no longer in many situations a project. Sperm can stay as much as 5 days, yet 2-3 days is greater common.
2016-12-11 13:13:18 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Zinc is easier to oxidize than iron, thus acts a sacrificial anode. Wikepedia likely has a nice article on sacrificial anodes.
2006-08-22 06:24:27 · answer #4 · answered by Yacoff 1 · 0⤊ 0⤋
Other Zncoating present does the same work and oxidises itself instead of Fe thus saving iron to get corrode
2006-08-24 03:38:30 · answer #5 · answered by Vaibhav cool 1 · 0⤊ 0⤋
this is because in galvanisation iron is dipped in molten zinc which diffuses into the iron on drying up and even on scratching zinc is contained in the iron.
2006-08-22 05:37:34 · answer #6 · answered by Vidhan A 1 · 0⤊ 0⤋
Zinc has already made alloy with iron.
2006-08-22 05:28:06 · answer #7 · answered by Pitambri 3 · 0⤊ 1⤋
zinc is more reactive than iron
2006-08-22 05:44:08 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Lack of electricity
2006-08-22 04:50:23 · answer #9 · answered by Anonymous · 0⤊ 2⤋