Neither. Iron is mined and then extracted from its ore.
Steel, though is often made by combining iron with carbon
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Iron ores most often contain iron combined with oxygen. The carbon comes from a material called coke, which is made from coal. When heated, the carbon reacts with oxygen in the ore, leaving the purified iron metal behind.
Carbon iron oxide - oxygen = carbon dioxide
No. The element mercury contains only mercury atoms. The planet Mercury is made mostly of silicon, oxygen, and iron.
Because they are all made inside of stars.
I know that carbon plus oxygen equals iron and iron is what kills stars...
Carbon monoxide is exactly like carbon dioxide, except that it is missing an oxygen atom. Animal blood uses iron, the iron rusts making the blood red, to transport oxygen by combining the iron with the oxygen making iron oxide, or rust. The oxygen in rust can be easily taken from iron because oxygen combines with many things more easily than it does with iron. One such molecule is carbon monoxide. When the carbon monoxide is breathed in, it mixes with the blood, just like the other air that gets sucked in. When the carbon monoxide gets into the blood, the oxygen that is attached to the iron, the body attaches oxygen to iron to transport it and it uses it by combining it with carbon to dispose of waste, leaves the iron and goes to the carbon monoxide which makes carbon dioxide. So very simply carbon monoxide sucks the oxygen from the blood making the person suffocate, because they can no longer use the oxygen they breathe in.
Metals are extracted from their ore through chemical reaction. Iron ore is an oxide of iron. The oxygen is removed from the ore by heating carbon with the ore to create molten iron and Carbon Dioxide.
The human body is made up of only mostly carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus. The top four elements are oxygen, carbon, hydrogen and nitrogen, so that would be a. on your list.
Iron ore is mixed with coke (almost pure carbon from coal) and roasted at high temperatures. The carbon reacts with the oxygen to produce carbon dioxide leaving the elemental iron.
Haemoglobin
It depends on the type e.g. iron comes from an ore which is dug out of the ground where as steel is a mixture of iron and a tiny amount of carbon, this is known as an alloy. An ore is dug out of the ground and is the melted in a furnace, then to remove the oxygen carbon is added as this new bond of carbon and oxygen is stronger then iron and oxygen, this then separates in the furnace at different levels and can be poured off. Imagine it like oil in water the oil rises to the top.