If iron is put in water and oxygen is present the following reaction will happen. 4 Fe + 3 O2 + 6 H2O -> 4 Fe(OH)3 This combination reaction results in iron hydroxide which is basically corroded or rusted iron.
It will corrode it to form iron(II) chloride (FeCl2) and hydrogen gas (H2)
In the normal presence of oxygen rusting appear: iron is oxidized to iron oxides.
A copper film is deposed on the iron nail.
The iron will react with the copper sulfate, producing iron sulfate and elemental copper.
The iron is a more active metal than copper, so the iron atoms in the nail replace the copper atoms in the copper sulphate solution, so it becomes iron sulfate. The copper atoms will start to build on the iron nail, as well.
iron nail
It rusts faster in salt water.
A copper film is deposed on the iron nail.
Nothing will happen to iron in oil. You may be thinking of the standard rusting experiment where one of the tubes contains an iron nail in boiled water sealed with oil. The purpose of this tube is to show that iron needs oxygen to rust. The boiled water does not contain dissolved oxygen and the oil prevents more from entering from the air.
Yes, rust happens to iron nail though it is kept in distilled water.
The nail sinks in water because the gravitational force attracts it downward toward the earth, there is an upthrust of water on the nail which pushes it upwards but, the downward force acting on the nail is greater that the upward force. Hence, the nail sinks in water. The density of the iron nail is more than that of the water, this means that the upthrust of water on the iron nail is less than the weight of the nail, so it sinks. The cork floats while nail sinks this happens because of the difference in their densities. The density of a substance is defined as the mass per unit volume. The density of the cork is less than the density of water. This mean the upthrust of the cork is greater than the weight of the cork. The density of the iron nail is more than that of the water, this means that the upthrust of water on the iron nail is less than the weight of the nail, so it sinks.
Because iron is rusting.
Copper is displaced by iron and deposited on the nail.
Salt water.
This really depends on the concentration of impurities in water. More the impurities, faster it will rust the iron nail. To reduce rusting of any iron the best way is to paint the nail.
The Oxygen in the water reacts with the iron in the nail, making Ferrous Oxide
the exposure of water or moisture to the iron nail will convert the element to fe+3
It will rust faster in a salt water base and it will also rust faster in a tap water base not a sugary or a pop type, they have a slower fashion of rusting.
Unless one or both iron nails are magnetized, then nothing will happen. If one nail is magnetized, then the other nail will be attracted to the magnetized nail.