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From nuclear fusion of stars. The fusion process starts with hydrogen molecules being pulled together by gravity, proceed to form helium when a critical temperature is reached at about 2.5x10^9 oC, then form heavier atoms such as magnesium, oxygen and calcium.
The nucleosynthesis then follows a complex path through Si - Ca - Ti - Fe - Ni - Co- and finally Fe56 which is stable.
With the formation of sufficient heavy elements, the star gains greater density eventually leading to a dwarf star or a supernova, depending on the size of the starting star. [Our Sun is too small to make iron, so we will not go nova that way!]
About 5% of meteorites are of the iron-nickel type, easily recognized by a characteristic crystal pattern revealed by etching.
The core of the Earth is rich in nickel-iron, and it is possible that the break-up of an early planet that gave us the meteor belt, and the iron.
[In early Earth, the oceans were very rich in dissolved iron, and it was the arrival of the algae and photosynthesis that precipitated it out (due to the production of oxygen) as the immense banded-iron beds, which are the source of the major commercial iron deposits today.]
Iron is a naturally occurring element found in the Earth's crust. It can be extracted from iron ore through a process called smelting, where the iron ore is heated with carbon to remove impurities and extract the iron metal. Iron ore deposits are typically found in the form of hematite or magnetite.
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When iron rusting is an example of a what change?
When iron rusts, it undergoes a chemical change. This is because the iron reacts with oxygen in the air to form iron oxide, which has different chemical properties compared to the original iron.
Are iron filings a mixture?
Yes, iron filings are considered a mixture because they are a physical combination of iron particles that retain their individual properties.
Why does iron weigh more after it rusts?
Iron weighs more after it rusts because rust is formed by the addition of oxygen from the surrounding environment. This increase in weight is due to the formation of iron oxide layers on the surface of the iron, which adds to the overall mass of the object.
What is A mineral that contains a useful substance or element such as iron?
Hematite is a common iron-containing mineral that is a major source of iron ore. It is commonly mined for its iron content, which is used in the production of steel.
What is iron carbonate?
Iron carbonate is a chemical compound with the formula FeCO3. It is a type of iron ore that is often found in sedimentary rocks. Iron carbonate is not commonly used as a source of iron because it is unstable and tends to decompose into iron oxide and carbon dioxide.
What is the original name of iron?
Ferrum, which is latin.
What is a source of iron?
A good source of iron is red meat. If you are deficient, you may be prescribed iron pills to take daily.
What is the original source of hydroelectricity?
The original source of energy for hydroelectricity is water.
Is hematite a source of iron?
The main raw material for iron-making is iron ore.There are two iron ore minerals:haematite and magnetite.Actually haematite is an ore where iron is extracted.One can say that haematite is a source if iron.
What is in a primary source?
Original letters or documents, for example. A secondary source would be an essay, for example, about the original source.
Is quorn a source of iron?
Yes, Quorn is a source of iron. It contains non-heme iron, which is a form of iron found in plant-based foods. Incorporating Quorn into your diet can contribute to your daily iron intake.
What is the original source of hydroelectric energy?
The original source of energy for hydroelectricity is water.
What would represent a source of possible iron contamination?
an iron chelate
Milk is a poor source of?
IRON
What is the original source of energy in firewood?
The original source of the energy in any combustible plant material is from the sun.
Is magnetite a source of tin?
No, but it's a big-time source of iron.
Which mineral is an important source of iron?
Iron ore is an important source of iron. It is commonly mined as hematite or magnetite, which are both abundant in nature and widely used in the production of steel and other iron products.
