yes it is .. also called prousts law
Yes, a mixture does not obey the law of definite composition. Mixtures can have varying proportions of different substances, whereas compounds, which obey the law of definite composition, have a fixed ratio of elements.
The law you are referring to is the Law of Definite Proportions. This law states that a chemical compound always contains the same elements in the same proportions by mass, regardless of the source of the compound.
This law hasn't a chemical equation !
Yes, after the Law of definite proportions; but now it is clear that this law is not applicable to all known chemical compounds.
Law of definite proportion or law of definite composition.
The Law of Definite Composition states that a compound will always have the same proportion of elements by mass. This relates to the empirical formula because the empirical formula gives the simplest whole number ratio of the elements in a compound, which reflects the fixed composition of elements as per the Law of Definite Composition.
For example the law of definite proportions.
always the same
The chemical composition of nonstoichiometric compounds do not respect the law of definite proportions.
The law of definite composition states that a compound always contains the same elements in the same proportion by mass. If our class's results consistently show that the same compound formed from specific elements in the experiment, then it supports the law of definite composition by demonstrating that the elements combine in a fixed ratio to form the compound.
This law is not valid for all chemical compounds (ex. nonstoichiometric compounds).