is n2 a homogeneous mixture?
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6. Air is an example of a homogeneous mixture. The composition of air is about 78% N2, 21% O2 and 1% CO2, H2O, etc.
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In the question HNO2 is a weak acid and NaNO2 is it's salt. So it will form a buffer Solution. NaOH is a strong base and NaCl is its salt. So this mixture is not a buffer Solution.
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It retains its composition and properties. A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. The salt water described above is homogeneous because the dissolved salt is evenly distributed throughout the entire salt water sample.
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A homogeneous mixture is defined as "the mixture, which has uniform composition through out its mass". EXAMPLE: Air, sugar solution, salt solution, alloys, soft drinks (Pepsi, Coca-Cola etc.) mass are known as heterogeneous mixtures".
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However, in the most basic sense, yes. Helium is a pure substance. Most commonly, helium gas is a mixture of 2 different forms of helium (isotopes). So in that sense it's not “pure”.
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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.
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Sand may appear homogeneous from a distance, yet when you magnify it, it is heterogeneous. 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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SOLUTIONS are homogeneous mixtures. A solution is a mixture of two or more substances in a single phase. At least two substances must be mixed in order to have a solution.
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In N2, the atoms bonded to each other are the same and hence have the same electronegativity. As such, the electrons shared are not preferentially drawn to either. This results in the formation of a non-polar bond in N2.
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Compounds, with the appropriate methods, can be broken down into simpler substances. A mixture contains subtances, elements and or compounds, in a proportion not defined by nature and has properties based on the relative concentration of the components. If a mixture is homogeneous, it is a solution.
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Homogeneous and heterogeneous mixtures. ... 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.
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Solutions are typical homogeneous mixtures. For example, a solution of salt in water is a homogeneous mixture because the water and salt can be separated by distillation, producing pure water and crystalline salt. ... If it is not, it could be a homogeneous mixture or a pure substance.
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a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.
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All solutions would be considered homogeneous because the dissolved material is present in the same amount throughout the solution. One characteristic of mixtures is that they can be separated into their components.
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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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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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Mixtures:   Homogeneous: a homogeneous mixture is one that appears the same throughout. It is very well mixed.   Sea water is a homogeneous mixture of water, table salt and a variety of other compounds, stainless steel is a homogeneous mixture of iron, carbon, nickel and other elements.