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Is the law of definite proportions says that the composition of a compound always the same?
Wiki User
∙ 10y ago
always the same
Wiki User
∙ 10y ago
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What is the law that states that a chemical compound always contains the same elements in exactly the same proportions by w eight and mass?
Law of definite proportion, sometimes also called the law of constant composition.
State the law of definite proportions?
The law of definite proportions states that all chemical compounds have constant proportions of their components.
The law of definite proportions states that a compound always contains the same elemtents in the smae proportions?
true
What is a material that always has a definite composition element compound mixture substance composition?
a substance
What is a matter with a composition that is always the same?
Matter with a definite composition is a pure substance, such as an element, molecule, molecular compound, or ionic compound.
Who said that a given compound always contains the same elements in the same proportions by mass?
chemist named Proust
Is the law of definite proportions important?
In chemistry, the law of definite proportions, sometimes called Proust's Law, states that a chemical compound always contains exactly the same proportion of elements by mass. An equivalent statement is the law of constant composition, which states that all samples of a given chemical compound have the same elemental composition by mass. For example, oxygen makes up about 8/9 of the mass of any sample of pure water, while hydrogen makes up the remaining 1/9 of the mass. Along with the law of multiple proportions, the law of definite proportions forms the basis of stoichiometry.
What is matter with a composition that always stays the same?
Matter with a definite composition is a pure substance, such as an element, molecule, molecular compound, or ionic compound.
Is ratio of atoms is always the same in a compound?
Generally yes (the law of definite proportions); as exceptions - nonstoichiometric compounds.
Why does the chemical composition of water always stay the same?
Because water is a compound, a type of pure substance, which has a definite composition.
Who developed the law of definite composition?
In chemistry, the law of definite proportions and also the elements, sometimes called Proust's Law, states that a chemical compound always contains exactly the same proportion of elements by mass. An equivalent statement is the law of constant composition, which states that all samples of a given chemical compound have the same elemental composition.This observation was first made by the French chemist Joseph Proust based on several experiments conducted between 1798 and 1804. Based on such observations, Proust made statements like this one, in 1806:
Why is the law of definite proportion important.?
In chemistry, the law of definite proportions, sometimes called Proust's Law, states that a chemical compound always contains exactly the same proportion of elements by mass. An equivalent statement is the law of constant composition, which states that all samples of a given chemical compound have the same elemental composition by mass. For example, oxygen makes up about 8/9 of the mass of any sample of pure water, while hydrogen makes up the remaining 1/9 of the mass. Along with the law of multiple proportions, the law of definite proportions forms the basis of stoichiometry.
