alloy
Carbon monoxide is a pure substance, as it is made up of molecules that are all identical (one carbon atom and one oxygen atom). It does not contain different types of molecules mixed together.
lead oxide + carbon-> lead + carbon dioxide
CO2 is a pure substance and so is homogeneous. Hint: if it has a chemical formula then it is a pure substance.
Carbon dioxide is mixed with water to make it sparkling. This process creates carbonation, which gives the water its bubbly or fizzy quality.
That is an element.
Carbon dioxide is a compound of two gases; Carbon and Oxygen. Therefore it is not a mixture, or mixed substance.
Carbon monoxide is a pure substance, as it is made up of molecules that are all identical (one carbon atom and one oxygen atom). It does not contain different types of molecules mixed together.
Ores
It's a process...But Smelting and CarbonIron ores consists of oxygen and iron atoms bonded together into molecules. To convert it to metallic iron it must be smelted or sent through a direct reduction process to remove the oxygen. Oxygen-iron bonds are strong, and to remove the iron from the oxygen, a stronger elemental bond must be presented to attach to the oxygen. Carbon is used because the strength of a carbon-oxygen bond is greater than that of the iron-oxygen bond, at high temperatures. Thus, the iron ore must be powdered and mixed with coke, to be burnt in the smelting process.However, it is not entirely as simple as that; carbon monoxide is the primary ingredient of chemically stripping oxygen from iron. Thus, the iron and carbon smelting must be kept at an oxygen deficient (reducing) state to promote burning of carbon to produce CO not CO2.
a substance used in any processes
lead oxide + carbon-> lead + carbon dioxide
Oxygen is removed from iron ore through a process called smelting. This involves heating the iron ore with a reducing agent such as carbon, which reacts with the oxygen in the ore to form carbon dioxide or carbon monoxide, leaving behind the pure iron metal.
Iron ores consists mostly of oxygen and iron atoms bonded together into molecules. To convert these oxides or iron to metallic iron, they must be smelted or sent through a direct reduction process to remove the oxygen. Oxygen-iron bonds are strong, and to remove the iron from the oxygen, a stronger elemental bond must be presented to attach to the oxygen. Carbon is used because the strength of a carbon-oxygen bond is greater than that of the iron-oxygen bond, and the process is done at high temperatures. The iron ore must be powdered and mixed with coke, which is essentially carbon, and the whole must be burnt in the smelting process.It is reduced with carbon by smelting. It is placed in a furnace with carbon coke and lime is added to reduce impurities
heterogeneous
CO2 is a pure substance and so is homogeneous. Hint: if it has a chemical formula then it is a pure substance.
Carbon dioxide is mixed with water to make it sparkling. This process creates carbonation, which gives the water its bubbly or fizzy quality.
it depends. A lot of metals are elements like iron for example, these can be mixed to form alloys(compounds) steel for example is an aloy of carbon and iron. Metals exist as mixtures when they are found in their ores(mixed with other metals and minerals) and must be separated from their mixtures by smelting.