that it has 3 of them
Structural formulas show a representation of the molecular structure, while chemical formulas do not. This is especially important when multiple compounds have the same chemical formula, but a different molecular structure.
The formula of a compound called methane is CH4. This formula shows, among many other things, that there are four times as many hydrogen atoms as carbon atoms in methane and that each molecule contains 5 total atoms.
The type and the number of atoms of each element present.
the actual number of atoms in a molecule
The "4" means that there are 4 water (H2O) molecules. The subscript of 2 on hydrogen means that there are two Hydrogens per molecule of water, so there are 8 hydrogens and 4 oxygens in all, since Oxygen has a subscript of 1.
Ammonia molecule is not spherical but triangular pyramidal in shape. Hence it is not possible to tell its shape.
The formula of ammonia (NH3) tells you the elemental composition of the compound, indicating that it contains one nitrogen atom and three hydrogen atoms. It also gives you information about the ratio of atoms in the molecule, allowing you to predict its chemical properties and reactions.
A chemical formula tells you the number of each type of atom in the molecule or structure.
That each molecule contains 1 atom of carbon and 4 atoms of hydrogen.
Ammonia's nitrogen atom possesses a lone pair of electrons, making it a proficient base that readily accepts hydrogen from acids. Reactions usually take place when ammonia is dissolved in water, forming an aqueous ammonia solution.
It tells what elements are present in a molecule and how many atoms of each element are present.
What and how many elements it's composed of
The subscript in a formula typically indicates the number of atoms of an element present in a molecule. It is used to specify the ratio of atoms in a compound or the number of atoms in a polyatomic ion.
A molecular formula for the substance. The number of atoms of each element present is given by a subscript immediately after the chemical symbol for the element in the molecular formula, with a subscript of "1" being presumed when no subscript is actually written in the formula.
1 Carbon atom and 2 Oxygen atoms. The formula is CO2, which means that there are one atom of carbon and two atoms of oxygen in one molecule. The subscripts tell you the numbers of each element. No number is understood to be one.
A molecule is two or more elements bonded together, and a compound is a molecule containing at least two elements. The word formula fits in to tell you whether you have a compound or a molecule by telling you the number of elements (atoms) in the molecule.
1 Carbon atom and 2 Oxygen atoms. The formula is CO2, which means that there are one atom of carbon and two atoms of oxygen in one molecule. The subscripts tell you the numbers of each element. No number is understood to be one.