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The iron would react with the oxygen in the water to make iron oxide, or rust.
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∙ 13y ago
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Is iron is a pure substance or mixture?
Iron is a pure substance. It's an element (Fe) and a bar of Iron is no mixture. If it was pure iron, then by definition it would be pure. However iron is rarely pure, it is usually in alloy with something.
Why does rust decrease the strength of an iron bar?
The reason for this is because rust is weaker than iron and decreases strength. Iron rust flakes off and has holes in it that allow water and air to further corrode deeper layers of iron (like a pile of potato chips). Aluminium, stainless steel and other metals form a complete continuous layer and prevent further corrosion. It is not because of reduced surface area if anything the surface area is increased (especially with iron)AnswerI believe its because the overall surface area of the bar is decreased, hence the structural integrity of the bar is compromised. Strangely enough, when aluminum rusts the aluminum oxide on the surface of the metal increases resistance to further corrosion without reducing the surface area. love Tim xxx
If a 150 gram iron bar is heated to 250c a second iron bar with a mass or 300 grams is heated to 250c which bar has the most thermal energy?
i would say that the 150 gram bar because the thermal energy will be able to travel around the bar quicker
How can you tell the difference between a bar of iron a bar of copper and a magnet?
Iron is a ferromagnetic metal, and copper is not. Iron will be attracted to the magnet but the copper will not.
How many kg is iron bar?
It depends on the size of the bar.
Iron bar rust how is the balance?
Rust is formed from Fe2O3.nH2O and Fe(OH)3.
What type of material rust?
metal,iron, nails ,bar, steel,rod
If an iron bar were inserted into the wire coil what would happen to the iron bar?
The iron bar would become more magnetic.
What happens to the molecules when a steel bar is left outside and starts rusting?
The molecules of iron combine with molecules of oxygen to form molecules of iron oxide- or rust.
Why would a bar of iron be more dense then a bar of lead?
This is incorrect. A bar of lead is denser than a bar of iron. Iron bars have a density of 7.87 g/cm3, whereas lead bars have a density of 11.36 g/cm3.
Why does the rusting of iron make the iron thinner and thinner?
When rusting occurs, some of the outer metal converts to a crumbly iron oxide that doesn't have the same strength as the metal. The deeper the rusting goes into the metal , the weaker the bar will become.
Is iron is a pure substance or mixture?
Iron is a pure substance. It's an element (Fe) and a bar of Iron is no mixture. If it was pure iron, then by definition it would be pure. However iron is rarely pure, it is usually in alloy with something.
What would be a good way to displaythe results of the ''what causes metals to rust faster''?
Bar graph
What is iron rust?
Rust is a general term for iron oxides formed by the reaction of iron with oxygen. Several forms of rust are distinguishable visually and by spectroscopy, and form under different circumstances. The chemical composition of rust is typically hydrated iron(III) oxide (Fe2O3.nH2O), and under wet conditions may include iron(III) oxide-hydroxide (FeO(OH)). Rusting is the common term for corrosion of iron and its alloys, such as steel. Although oxidation of other metals is equivalent, these oxides are not commonly called rust. As rust has higher volume than the originating mass of iron, its buildup may force apart adjacent parts - a phenomenon known as rust smacking. The rusting of iron is one of the more widely used examples of corrosion. This electrochemical process requires the presence of water, oxygen and an electrolyte and leads to the formation of hydrated iron oxides.
What type of magnet attracts to iron but not for a long time?
Bar magnet. Because a bar magnet is strong to iron..... Or that's what we did in class.....
Is an iron bar an insulator or a conductor?
A iron bar is a conductor
Is a iron bar a insulator or a conductor?
A iron bar is a conductor
