What is oxidation have to do with rusting? Also what material are screws made of?

Answer 1

Slow oxidation of iron into its hydrated oxide by oxygen of the air in the presence of moisture is known as rusting.
A flaky browncoating of hydrated iron contining variable number of water moleculesis formed on the surface of the iron.This flaky coating crumble from the surface of iron making its fresh surface available for attack of atmospheric oxygen and moisture,Rusting is therefore oxidation of iron ,
Screws are made of galvanised iron.

Answer 2

Rusting _is_ oxidation. Iron and the oxygen combine to form iron oxide, which is rust. Screws are made of all sorts of materials: wood, plastic, various metals, ceramics, etc. Some screws are made from one material, but are coated in another to prevent oxidation.

Answer 3

Oxidation reduction is the chemical means which takes place when metal rusts. So it has everything to do with rusting. Also screws are made of metal, and plastic.( it really depends what and where you need them for)

Answer 4

rusting is the oxidation of the iron in the metal yielding iron oxide.

screws are made of many different materials--stainless steel, aluminum, brass, galvanized steel, zinc, etc.

Answer 5

Rust is the substance formed when iron compounds corrode in the presence of oxygen and water. It is a mixture of iron oxides and hydroxides. Rusting is a common term for corrosion, and usually is corrosion of steel.

Iron is found naturally in the ore haematite as iron oxide, and metallic iron tends to return to a similar state when exposed to air, (hydrogen, oxygen, nitrogen, etc.) and water. Energy is given off when rust forms. The process of rusting can be summarized as three basic stages: The formation of iron(II) ions from the metal; the formation of hydroxide ions; and their reaction together, with the addition of oxygen, to create rust.

Iron is the main component of steel and the corrosion of steel is observed more frequently, since iron is rarely used without alloying in the present day.

When steel contacts water, an electrochemical process starts. On the surface of the metal, iron is oxidized to iron(II):

Fe → Fe2+ + 2e−
The electrons released travel to the edges of the water droplet, where there is plenty of dissolved oxygen. They reduce the oxygen and water to hydroxide ions:

4e− + O2 + 2H2O → 4OH−
The hydroxide ions react with the iron(II) ions and more dissolved oxygen to form iron oxide. The hydration is variable, however in its most general form:

Fe2+ + 2OH− → Fe(OH)2
4Fe(OH)2 + O2 → 2(Fe2O3.xH2O) + 2H2O
Hence, rust is iron(III)oxide, which is formed by the dehydration of iron(II) hydroxide. Corrosion tends to progress faster in seawater than fresh water due to higher concentration of sodium chloride ions, making the solution more conductive. Rusting is also accelerated in the presence of acids, but inhibited by alkalis, through passivation. Rust can often be removed through electrolysis, however the base metal object can not be restored through this method.

Rust happens when things made from iron get left lying around in damp conditions and the iron gets reddish brown flakes on it.
Rust happens when iron water and oxygen mix together. It’s called oxidation. Rust is a chemical reaction because it makes a new substance called Iron Oxide. The oxidation makes the metal weak so it’s easy to break


Screws and bolts are made in a wide range of materials, with steel being perhaps the most common, in many varieties. Where great resistance to weather or corrosion is required, stainless steel, titanium, brass or bronze may be used, or a coating such as brass, zinc or chromium applied. Electrolytic action from dissimilar metals can be prevented with aluminium screws for double-glazing tracks, for example. Some types of plastic, such as nylon or Teflon, can be threaded and used for fastening requiring moderate strength and great resistance to corrosion or for the purpose of electrical insulation. Even porcelain and glass can have molded screw threads that are used successfully in applications such as electrical line insulators and canning jars.

The same type of screw or bolt can be made in many different grades of material. For critical high-tensile-strength applications, low-grade bolts may fail, resulting in damage or injury. On SAE-standard bolts, a distinctive pattern of marking is impressed on the heads to allow inspection and validation of the strength of the bolt. However, low-cost counterfeit fasteners may be found with actual strength far less than indicated by the markings. Such inferior fasteners are a danger to life and property when used in aircraft, automobiles, heavy trucks, and similar critical applications.