Number of elements, Atoms, Atoms of FE, and atoms of O in, 2Fe2O3?

Hey there!

2Fe₂O₃

Number of elements:

We see 2 atomic symbols in this formula: Fe and O. This means there are two elements.

Number of atoms:

There are 2 atoms of Fe because of the subscript of 2, and 3 atoms of O because of the subscript of 3. That is 5 atoms total, but there is a coefficient fo 2 in front, so we have twice as many. This means there are 10 atoms.

Number of atoms of Fe:

Like we said earlier, there are 2 atoms of Fe because of the subscript of 2, and there is a coefficient of 2 so we have twice that. This means there are 4 atoms of Fe.

Number of atoms of O:

Like we said earlier, there are 3 atoms of O because of the subscript of 3, and there is a coefficient of 2 so we have twice that. This means there are 6 atoms of O.

Hope this helps!

explanation:

the largest database of organic compounds lists about 10 million substances, which include compounds originating from living organisms and those synthesized by chemists. the number of potential organic compounds has been estimated at 1060—an astronomically high number. the existence of so many organic molecules is a consequence of the ability of carbon atoms to form up to four strong bonds to other carbon atoms, resulting in chains and rings of many different sizes, shapes, and complexities. the simplest organic compounds contain only the elements carbon and hydrogen, and are called hydrocarbons. even though they are composed of only two types of atoms, there is a wide variety of hydrocarbons because they may consist of varying lengths of chains, branched chains, and rings of carbon atoms, or combinations of these structures. in addition, hydrocarbons may differ in the types of carbon-carbon bonds present in their molecules. many hydrocarbons are found in plants, animals, and their fossils; other hydrocarbons have been prepared in the laboratory. we use hydrocarbons every day, mainly as fuels, such as natural gas, acetylene, propane, butane, and the principal components of gasoline, diesel fuel, and heating oil. the familiar plastics polyethylene, polypropylene, and polystyrene are also hydrocarbons. we can distinguish several types of hydrocarbons by differences in the bonding between carbon atoms. this leads to differences in geometries and in the hybridization of the carbon orbitals.