Which law states that a compound is always composed of the same elements in the same proportion by mass no matter how large or small is the sample?

Which law states that a compound is always composed of the same elements in the same proportion by mass no matter how large or small is the sample?

The law of definite proportions
The law of definite proportions states that a compound is always composed of the same elements in the same proportion by mass, no matter how large or small the sample.

Which law states that a compound always contains the same?

the law of definite proportion
In chemistry, the law of definite proportion, sometimes called Proust’s law, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation.

Which scientific law says that a compound is always made of the same elements in the same ratio?

The Law of Definite Proportions
The Law of Definite Proportions states that a compound will always contain the same ratio (of either atoms or mass) of the same elements.

What does it mean to say that a given compound always has the same composition?

What does it mean to say that a given compound always has the same composition? The molecules of that compound always contain the same number and types of atoms. You just studied 4 terms!

Which law would you use to compare CO and CO2?

Law of multiple proportions, as both compounds are formed from the same elements but with different composition. CO2 will contain the highest percent by mass of oxygen in the compound as it contains 2 oxygen atoms.

What’s the law of constant composition?

(1) The law of constant composition states that the proportions of the elements in a compound are always the same, no matter how the compound is made. It is also called the law of constant proportions or definite proportions. For example, sulphur and carbon both form compounds with hydrogen.

What is an example of the law of constant composition?

The law of constant composition says that, in any particular chemical compound, all samples of that compound will be made up of the same elements in the same proportion or ratio. For example, any water molecule is always made up of two hydrogen atoms and one oxygen atom in a 2:1 ratio.

What is the law of constant composition in chemistry?

What did Joseph Proust state regarding law of definite proportions?

The Law of Constant Composition, discovered by Joseph Proust, is also known as the Law of Definite Proportions. The French chemist Joseph Proust stated this law the following way: “A chemical compound always contains the same elements combined together in the same proportion by mass.”

How will you compare and contrast the elements and compounds?

An element is a pure chemical substance made of same type of atom. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule. A compound can be separated into simpler substances by chemical methods/reactions.

Which one of the following laws explain the formation of carbon monoxide and carbon dioxide from carbon and oxygen?

Law of multiple proportions explains the formation of CO and CO2, in these same weight of carbon that combines with weights of oxygen are in simple rate of 1 : 2.