are gases homogeneous or heterogeneous?
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HETEROGENEOUS MIXTURES A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.
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Gas particles spread out to fill a container evenly, unlike solids and liquids. Gas is a state of matter that has no fixed shape and no fixed volume.
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It appears the same throughout. Both are considered mixtures - that is, they are made up of two or more pure substances. ... A heterogeneous mixture appears to be made of different substances. A solution appears the same throughout.
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A homogeneous mixture appears uniform, regardless of where you sample it. ... Examples of homogeneous mixtures include air, saline solution, most alloys, and bitumen. Examples of heterogeneous mixtures include sand, oil and water, and chicken noodle soup.
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In most technical applications homogeneous means that the properties of a system are the uniform throughout the entire system; heterogeneous (also inhomogeneous) means that the properties change within the system. Any system with two phases like ice and water are said to be heterogeneous.
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Crushed ice is a mixture of solid water (ice crystals), liquid water, gaseous water (steam) and air, so it is in no way homogeneous.
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A homogeneous mixture is uniform, which means that any given sample of the mixture will have the same composition. Air, sea water, and carbonation dissolved in soda are all examples of homogeneous mixtures, or solutions. ... The substance that gets dissolved is the solute.
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Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances. Salt, sugar, and many other substances dissolve in water to form homogeneous mixtures. A homogeneous mixture in which there is both a solute and solvent present is also a solution.
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A heterogeneous mixture is a mixture of two or more chemical substances where the various components can be visually distinguished. A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties.
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Answer and Explanation: Air is not a pure substance because it is a homogeneous mixture of different substances. Air is a homogeneous mixture because air is a thoroughly...
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If it is pure, the substance is either an element or a compound. If a substance can be separated into its elements, it is a compound. If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture. If its composition is uniform throughout, it is a homogeneous mixture.
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A heterogeneous mixture is a mixture of two or more chemical substances (elements or compounds), where the different components can be visually distinguished and easily separated by physical means. ... mixtures of sand and water.
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Normal urine It is homogeneous because it has the same composition throughout. d. Smog-filled air It is heterogeneous because it does not have the same composition throughout (concentration of smog, oxygen, other gases depends on the altitude).
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Yes, gasoline is a homogenous mixture. Its properties are spread throughout the mixture uniformly without any differences in the mixtures at different places that is why its a homogenous mixture.
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A heterogeneous mixture is simply any mixture that is not uniform in composition - it's a non-uniform mixture of smaller constituent parts. By contrast, a mixture that is uniform in composition is a homogeneous mixture.
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Not always because a pure substance cannot be a mixture and homogeneous is a mixture. ... Is smog heterogeneous or homogeneous mixture? Heterogeneous because smog is a suspension so all suspensions are heterogenous.
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A homogeneous mixture is a solid, liquid or gaseous mixture that has the same proportions of its components throughout any given sample. Conversely, a heterogeneous mixture has components in which proportions vary throughout the sample.