No. Compounds have a definite composition, therefore they are pure substances. For example, water always has the formula H2O, sodium chloride (common table salt) always has the formula NaCl, and glucose (blood sugar) always has the formula C6H12O6.
Not necessarily. Mixtures can consist of different compounds in different states (e.g., a mixture of water and oil) or the same compounds in different states (e.g., a mixture of ice and liquid water). The key characteristic of mixtures is that they can be physically separated.
what are the composition of organic compounds? "Carbong, Hydrogen and oxygen with small amount of halogen, nitrogen, sulfur and phosphorus are the chief elements found in organic compounds." No, A composition of organic compounds are carbohydrates, lipids, proteins, nucleic acids. Source: In AP Biology.
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.
Fixed composition refers to a mixture where the components are present in a specific and unchanging ratio. This means the proportion of each component in the mixture remains constant regardless of the amount of the mixture present. Fixed composition is often found in chemical compounds where the elements are combined in a defined ratio.
Interstitial hydrides are not true chemical compounds because they do not have a fixed stoichiometry and exhibit variable composition. They form due to the absorption of hydrogen by certain metals, with the hydrogen atoms occupying spaces between metal atoms in the crystal lattice rather than forming distinct chemical bonds. This results in non-stoichiometric behavior and a lack of well-defined chemical properties characteristic of traditional chemical compounds.
Nonstoichiometric compounds have a variable composition.
Variable composition refers to a situation where the quantities of different substances in a mixture can vary. In other words, the proportions of the components in the mixture are not fixed and can change. This can occur in solutions, alloys, or other types of mixtures.
Yes, compounds have fixed ratios of elements in a chemical formula, whereas mixtures can have variable ratios of different substances mixed together. Compounds are chemically bonded, while mixtures are physically mixed.
No, the composition is variable - excepting of course specific recipes.
the composition varies from one compound to another
The term for matter having indefinite composition and variable properties is a mixture. Mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition).
Mixtures have widely variable contents, whereas compounds have fixed contents. In mixtures, each component retains its characteristics, but compounds may act wildly different from their component parts. Attempting to break down compounds requires vast amounts of energy, yet mixtures can be separated rather simply.
Not necessarily. Mixtures can consist of different compounds in different states (e.g., a mixture of water and oil) or the same compounds in different states (e.g., a mixture of ice and liquid water). The key characteristic of mixtures is that they can be physically separated.
The statement that all compounds have a composition of ionic compounds is false. Many compounds can be covalent in nature, where atoms share electrons instead of transferring them. On the other hand, it is true that compounds have a definite composition with fixed ratios of elements and compounds are formed by the bonding of two or more different elements.
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No,Law of constant composition is valid only for compounds made from the specified isotopes of the element.
Compounds differ from mixtures because compounds have a fixed chemical composition with elements chemically bonded in a specific ratio, while mixtures can vary in composition with no fixed ratio. Compounds have specific properties different from their constituent elements, while mixtures retain the properties of their components.