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A compound is a substance that contains two or more elements chemically combined in a fixed proportion. The elements carbon and hydrogen combine to form many different compounds. One of the simplest is called methane, in which there are always four times as many hydrogen atoms as carbon atoms.
- Chemical Formulas
A chemical formula is an expression that shows the elements...
- Chemical Formulas
When we mix two different pure substances together, like this, it’s a mixture. This is now a mixture of the elements iron and sulfur. The different elements are not joined together.
A compound is a substance that contains atoms of two or more different elements, chemically joined together. For example, water is a compound of hydrogen and oxygen, chemically joined together....
The law of constant composition can be used to distinguish between compounds and mixtures of elements: Compounds have a constant composition; mixtures do not. Water is always 88.8% O and 11.2% H by weight regardless of its source. Brass is an example of a mixture of two elements: copper and zinc.
- Constituents of Compounds and Mixtures
- Separating The Components
- References
Compounds are made up of elements, which are pure substances with only one kind of atoms. Atoms of the elements form bondsto combine and make up a molecule of the compound. The compound contains a uniform distribution of these molecules. A compound has different physical and chemical characteristics than its component elements. It is not possible t...
The component elements of a compound can only be separated via a chemical reaction that breaks the atomic bonds that bind its molecules. The ingredients of a mixture may be separated by physical means like sedimentation or decantation.
Mixture - WikipediaCompounds - WikipediaExperiments to see how compounds and mixtures of iron and sulphide behave under various conditions - YouTubeMatter: Mixtures vs Compounds - YouTubeSep 20, 2022 · A mixture is a combination of two or more substances in any proportion. This is different from a compound, which consists of substances in fixed proportions. The substances in a mixture also do not combine chemically to form a new substance, as they do in a compound.
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Compounds are two or more elements chemically combined in definite proportions by weight. Mixtures are two or more substances not chemically combined. Read on for a more thorough explanation of the properties of compounds and mixtures. The Basics – Molecules, Mixtures, & Compounds.
