This follows from the law of constant proportions which was discovered by the French chemist Joseph Proust. His law states that a chemical compound always contains the same elements combined together in the same proportion by mass.
Because that's the definition of a compound. Two substances are considered distinct if they have distinct compositions.
Today this affirmation is only partially valid; many nonstoichiometric compounds are known.
It shows the composition and the ratio of each element to one another within the compound.
A mineral is defined as a compound having a fixed chemical composition ... Thus an element is not a mineral.
- The percent composition of a compound is established after the chemical analysis of this compound and the knowledge of the chemical formula.- If you know the chemical formula you need to know the atomic weights of the components to calculate the percent composition.
compound- answered by brandy :)
A compound is composed of two or more elements chemically combined in a definite proportion. The components of a mixture are not chemically combined and can vary in proportion.
the composition varies from one compound to another
It shows the composition and the ratio of each element to one another within the compound.
the composition varies from one compound to another
Definite chemical composition is when a mineral is made of the same material throughout. Basically when a mineral is only made of one material all the way through, not part iron in one part and then gold in the rest.
It means that you have one atom of each element in the formula
there is only one atom of each element
Yes because no samples are exactly the same.
A mineral is defined as a compound having a fixed chemical composition ... Thus an element is not a mineral.
This means that each molecule or formula unit of the compound contains only one atom of each element in the compound.
One atom of carbon, two of oxygen.
A pure compound is made up entirely of one substance that has a single chemical property. A mixture is made up of two or more pure compounds with distinct chemical properties.
No, compounds contain two or more elements. These elements are bond by ionic or covalent bonds. Compounds have a single chemical composition.