A heterogeneous mixture consists of two or more phases. A homogeneous mixture is a mixture in which the components that make up the mixture are uniformly distributed throughout the mixture. Is Coffee Homogeneous or Heterogeneous? - kitchensty.com Is milk a homogeneous mixture? The two types of mixtures are distinguished by the size of the crystals that are present. what it even looks like, it seems to be uniform. Air is a homogeneous mixture. Definition of Heterogeneous Mixture With Examples - ThoughtCo Find out all the interesting facts about milk that you probably didn't know before in our today's article. For example, liquid water can be heated to form a gas called steam, or steam can be cooled to form liquid water. A heterogeneous mixture is one that consists of two or more substances. Because the force of gravity is considered to be the same everywhere on Earths surface, 2.2 lb (a weight) equals 1.0 kg (a mass), regardless of the location of the laboratory on Earth. In other words, an emulsion is a particular type of mixture made by combining two liquids that do not mix usually.. Milk is composed of globules of fats and proteins dispersed in water. The components of pure milk which are nutrients (fat and protein) present in it, dont form separate layers. Is milk homogeneous or heterogeneous? - Answers Examples:- Soft drinks, soda water, saltwater, or air. It has a non-uniform composition throughout the mixture. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. In contrast, liquids have fixed volumes but flow to assume the shape of their containers, such as a beverage in a can. to see these clumps and depending where you are in the milk, you can actually see it with your eye, that you don't have A heterogeneous mixture consists of two or more phases like oil and water they do not mix evenly, but instead from two separate layers. Most substances are more soluble at higher temperatures, so a mixture of two or more substances can be dissolved at an elevated temperature and then allowed to cool slowly. That's evidence the composition is not uniform. Let me draw the water like that. Is milk a homogeneous or heterogeneous mixture? - BYJU'S We would like to show you a description here but the site won't allow us. Save my name, email, and website in this browser for the next time I comment. A rock, for example, is a solid. Milk contains molecules of fat suspended in water which makes it an emulsion. So, milk is a heterogeneous mixture. of is chocolate milk that's not well mixed. Yes, all solutions are homogeneous mixtures, but not all homogeneous mixtures are solutions. It turns out it can, depending on the way of storage milk can change its chemical properties. No tracking or performance measurement cookies were served with this page. of them has two hydrogens. The chemical composition of a substance is altered in a process called a chemical change. We already saw in the previous part that milk could be homogeneous or heterogeneous, but what type of mixture is it? On the other hand, fat and water components cannot be mixed to form . Milk is a heterogeneous mixture because it contains different elements that are not uniformly mixed. And as I mentioned, when The proteins in milk are primarily casein and whey. The exception would be solutions that contain another phase of matter. This is because the various components of milk or nutrients don't seem to form separate layers in it. For example, if you have a salad, you can see different sizes and shapes and types of vegetables. Matter is anything that occupies space and has mass. It can be argued whether milk is homogeneous or heterogeneous the answer depends on which type of milk is being discussed. Homogeneity and heterogeneity - Wikipedia If its composition is uniform throughout, it is a homogeneous mixture. A more detailed discussion of the differences between weight and mass and the units used to measure them is included in Essential Skills 1 (Section 1.9). going on in that metal, in that alloy, what's happening is you actually Milk appears to be a homogeneous mixture. How hard is it? Identify each substance as a compound, an element, a heterogeneous mixture, or a homogeneous mixture (solution). Did you ever think about the chemical structure of milk? and gas solutions as well. Is Milk a Homogeneous Mixture? - Techiescientist The composition of components occurs non-uniformly throughout the mixture. You can remove cream from the top of the milk with a spoon (you can remove it physically), and thats why milk is a heterogeneous mixture. When you drink milk, you are drinking a heterogeneous mixture. Salt water. By definition, a pure substance or a homogeneous mixture consists of a single phase. Milk is a homogeneous mixture. The components of such a mixture can be separated by simple means. Mixtures that sometimes seem to exist as homogeneous are often found to be heterogeneous after microscopic examination., This blog deals with components of milk responsible for its homogeneous or heterogeneous behavior. A heterogeneous mixture contains particles of different shapes or sizes and the composition of one sample may differ from that of another sample. Milk, for example, appears to be homogeneous, but when examined under a microscope, it clearly consists of tiny globules of fat and protein dispersed in water. You might have observed that it is very difficult to see across the smoke during a fire. Milk appears to be a homogeneous mixture because it seems to have a uniform distribution of particles throughout. What is a Heterogeneous Mixture? An emulsion is a colloid of two or more non-adjusted liquids where one liquid contains a dispersion of other liquids. Heterogeneous mixture. 1. Yes, milk is a heterogeneous mixture. Chemical solutions are usually homogeneous mixtures. 1: Matter- Its Properties and Measurement, { "1.1:_The_Scientific_Method" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.2:__Properties_of_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.3:_Classification_of_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.4:_Measurement_of_Matter_-_SI_(Metric)_Units" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.5:_Density_and_Percent_Composition_-_Their_Use_in_Problem_Solving" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.6:_Uncertainties_in_Scientific_Measurements" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.7:_Significant_Figures" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.E:_Exercises" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { "00:_Front_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "01:_Matter-_Its_Properties_And_Measurement" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "02:_Atoms_and_The_Atomic_Theory" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "03:_Chemical_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "04:_Chemical_Reactions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "05:_Introduction_To_Reactions_In_Aqueous_Solutions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "06:_Gases" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "07:_Thermochemistry" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "08:_Electrons_in_Atoms" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "09:_The_Periodic_Table_and_Some_Atomic_Properties" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "10:_Chemical_Bonding_I:_Basic_Concepts" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "11:_Chemical_Bonding_II:_Additional_Aspects" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "12:_Intermolecular_Forces:_Liquids_And_Solids" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "13:_Solutions_and_their_Physical_Properties" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "14:_Chemical_Kinetics" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "15:_Principles_of_Chemical_Equilibrium" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "16:_Acids_and_Bases" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "17:_Additional_Aspects_of_Acid-Base_Equilibria" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "18:_Solubility_and_Complex-Ion_Equilibria" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "19:_Spontaneous_Change:_Entropy_and_Gibbs_Energy" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "20:_Electrochemistry" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "21:_Chemistry_of_The_Main-Group_Elements_I" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "22:_Chemistry_of_The_Main-Group_Elements_II" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "23:_The_Transition_Elements" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "24:_Complex_Ions_and_Coordination_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "25:_Nuclear_Chemistry" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "26:_Structure_of_Organic_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "27:_Reactions_of_Organic_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "28:_Chemistry_of_The_Living_State" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "zz:_Back_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, [ "article:topic", "showtoc:no", "license:ccbyncsa", "licenseversion:40" ], https://chem.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fchem.libretexts.org%2FBookshelves%2FGeneral_Chemistry%2FMap%253A_General_Chemistry_(Petrucci_et_al. we talk about mixtures, we could be talking about The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Unsaturated fats make up the remaining 40%, with monounsaturated fats accounting for 20% and polyunsaturated fats making up 20%. All these examinations show that milk is a heterogeneous mixture. The components of the mixture are not apparent to the naked eyes. The major components are water, fats, carbohydrates (lactose), proteins, and minerals. When we even heat milk at a high temperature, a fine layer of fat and coagulated proteins form on the surface of milk which can then be removed. The percentage of dry matter content in milk varies depending on the mammal from which we get milk. The reason behind it is the same as a colloid that consists of the suspended particle. Decide whether a substance is chemically pure. The things that are getting dissolved are called the solute, in this case it would One example I often think However, homogeneous mixtures are simply mixtures with uniform consistency throughout. Milk is a heterogeneous mixture that appears to be homogeneous in nature. It is heterogeneous. About 250 compounds are found to be present in a milk sample. solid solution would be, say a metal alloy. view, it looks consistent any point of the mixture. the mixture you look at. This makes milk looks like a homogenous mixture. Two of these separation methods are distillation and crystallization. Milk is an emulsion by definition two liquids dispersed in one another. Examples:- Sand water, beach sand, petrol in water, milk, many more., Milk is an example of a heterogeneous mixture. These elements can be seen when milk is poured into a glass, and the fat globules rise to the top. Heterogeneous mixtures do not have the exact composition in all their parts, and they are made out of two or more substances. So, the milk is a heterogeneous mixture. Download our apps to start learning, Call us and we will answer all your questions about learning on Unacademy, Access free live classes and tests on the app, Is Milk a Homogeneous or Heterogeneous Mixture. heterogeneous mixture. The boundaries of separation of the two components are not visible. A mixture of salt and water, sugar and water, a mixture of gases, are a few examples of mixtures. Air is a homogeneous mixture. consistent concentrations of the different substances. Milk is a suspension, as the fat and protein molecules are floating in liquid but never precipitate, making a heterogeneous mixture. Examples include vodka, vinegar, and dishwashing liquid. And an example of a Individual components of heterogeneous mixtures are often visible to the naked eye or magnifying glass.If you look at milk thru the microscope, it consists of tiny globules of fat and protein dispersed in water. Are you looking for a way to spice up your morning meal? Wait for 2-3 minutes and observe that the sand particles will start settling down. Physical properties can be intensive or extensive. Examples of a heterogeneous mixture composed of different particles are thick fruit juice, a mix of oil and water, chalk and water, a combination of flour and water, a mixture of stone in water, milk (fat collects on the surface of the milk). Reactions that take place on the surface of a catalyst of a different phase are also heterogeneous. A mixture of sand in water is an example of suspension, the sand is dispersed in water when mixed but settles down when untouched. properties seem consistent, they seem uniform, but we know that the gas around Most matter consists of mixtures of pure substances, which can be homogeneous (uniform in composition) or heterogeneous (different regions possess different compositions and properties). There are many easy methods to separate the components of the mixture.. 11 Uses of Platinum Laboratory, Commercial, and Miscellaneous, CH3Br Lewis Structure, Geometry, Hybridization, and Polarity. Examples include brass, bronze, steel, and sterling silver. Homogenization breaks fat globules into smaller particles so milk doesn't separate. Milk is a colloidal dispersion of fat in water. When whole milk is cold, fats separate on its surface that is the apparent sign that the whole milk is heterogeneous. Is Milk a Heterogeneous Mixture? Thus recycling aluminum is both cost-effective and ecologically sound. Once you open the bottle, bubbles appear in the liquid. 2. 66222 views Or is it even a mixture or something else? And their properties. The proportion of different stuff in concrete varies from one portion to another. For example, a jar of green M&M's is a homogeneous mixture that does not involve a solute and a solvent being blended together. appears to be homogeneous. Then one would determine whether the mixture was homogeneous - uniform consistency (pepsi, for example) or heterogeneous - non-uniform (thousand island dressing, milk). And it could be a solid, Milk is a heterogeneous mixture, because it is NOT clear, brilliant or transparent. These mixtures have two or more phases and the components of the mixture are identifiable by naked eyes. The water and milk fat are not evenly mixed together, so milk can be thought of as a mixture of two different substances. Thus air is a solution of nitrogen, oxygen, water vapor, carbon dioxide, and several other gases; tap water is a solution of small amounts of several substances in water. Is Milkshake A Homogeneous Or Heterogeneous Mixture? Because a great deal of energy is required for electrolysis, the cost of electricity is by far the greatest expense incurred in manufacturing pure aluminum. Milk being the primary source of nutrition for the infants before they are able to digest solid food helps in strengthening the immune system and prevents several diseases. The specific compositions of both of these solutions are not fixed, however, but depend on both source and location; for example, the composition of tap water in Boise, Idaho, is not the same as the composition of tap water in Buffalo, New York. A homogeneous mixture appears uniform, regardless of where you sample it. Now to be clear, saltwater is Energy, light, and sound, however, are not matter; ideas and emotions are also not matter. Whole milk is actually a heterogeneous mixture composed of globules of fat and protein dispersed in water. The ingredients dont blend together into a uniform whole but remain separate from each other and are unevenly distributed throughout the mixture. 2. Examples of heterogeneous mixtures include sand, oil and water, and chicken noodle soup. at a micro perspective, you see that there are solution of sodium nitrate in water. A homogenous mixture is a mixture in which the elements are uniformly mixed. Now, you can imagine if 3.5: Pure Substances and Mixtures - Chemistry LibreTexts When observed under a microscope, milk appears to contain tiny globules of fats and proteins dispersed in a water-based fluid. Let us now see if milk is a colloid or suspension. Solution is the most common word used for a homogeneous mixture, even though not all homogeneous mixtures are solutions. Whole milk that comes directly from a cow (or other animal) is a mixture that consists of globules of fat in water. 3. The air around you is a gas solution. Scientifically speaking, a homogeneous mixture is one in which different parts (such as salt and water) have been uniformly combined into a new substance (salt water), while a heterogeneous mixture has parts that remain separate. A homogeneous mixture cannot be distinguished by eye or using a magnifying glass or a microscope. The fat in milk is composed of different types of fatty acids. Is milk a solution or homogeneous? - Answers Is Milk a Homogeneous or Heterogeneous Mixture? The particles in the homogeneous mixtures possess the same physical properties in the solution. Finally, many types of store-bought milk have been turned into a homogeneous mixture through homogenization, a process in which the fat globs are broken down and evenly distributed throughout the milk. Heterogeneous mixtures show a Tyndall effect, the light beam directed towards the mixture is scattered by the particles owing to their greater size. For example, water (a compound) can be decomposed into hydrogen and oxygen (both elements) by a process calledelectrolysis. The components of the mixture are may be present in unequal proportions. They usually are homogeneous mixtures. There are many types of physical methods to separate milk from its components which can prove that milk is heterogeneous. A reaction between two gases or two miscible liquids is homogeneous. If a substance can be separated into its elements, it is a compound. Heterogeneous/Homogeneous Flashcards | Quizlet An example of a mixture is air. The gray substance still used by some dentists to fill tooth cavities is a complex solid solution that contains 50% mercury and 50% of a powder that contains mostly silver, tin, and copper, with small amounts of zinc and mercury. Furthermore, milk is classified as a colloid, where the insoluble particles do not settle over a period of time when untouched and remain standing in the mixture. Mixtures can be solids, liquids, and gases. And so the same thing Is the milk homogeneous or heterogeneous? - Wise-Answer Substances that make up the mixture retain their properties. For example, a mixture of salt dissolved in water is a solution, since the particles are too small to be visible and separated easily. The mixture of coffee and milk would constitute a homogeneous mixture. when liquid particles are dispersed in a liquid medium, the colloid is known as an emulsion. Pure substances can be either chemical compounds or elements. The words homogeneous and heterogeneous are most often used in scientific contexts, particularly in chemistry to describe mixtures. Almost everything we see around is made up of a mixture of two or more substances. parts of the mixtures have different concentrations Is the whole milk a homogeneous or heterogeneous mixture? While we use the term "mixture" in cooking, it doesn't always mean the same thing as the chemistry definition. First solid material is filtered from river water; then the solids are separated by inspection. It has a non-uniform composition throughout the mixture. The conversion of two or more elements, such as sodium and chlorine, to a chemical compound, sodium chloride, is an example of a chemical change, often called a chemical reaction. you have the most of, the thing that other things heterogeneous mixture. For instance, when water is mixed with alcohol, the properties like the melting and boiling point of the mixture do not correspond with any of its constituents. A mixture is composed of one or more pure substances in varying composition. different types of mixtures. Is Milk a Homogeneous Mixture? Freshly Baked While whole milk belongs to heterogeneous mixtures, we must wonder if store-bought milk has the same properties? Milk also contains vitamins and minerals in small amounts. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Milk is a homogeneous or heterogeneous mixture: Milk is essentially known as a colloidal dispersion of fat in water where various proteins and other naturally occurring surfactants, allow the fat droplets to remain suspended in the water without setting or coalescing. There are two categories of mixtures: homogeneous mixtures and heterogeneous mixtures. Blood is made of a mixture of red blood cells, white blood cells, platelets, and plasma. A physical change involves the conversion of a substance from one state of matter to another, without changing its chemical composition. Mixtures can be homogeneous: homogeneous combinations have the same composition in all their parts. )%2F01%253A_Matter-_Its_Properties_And_Measurement%2F1.3%253A_Classification_of_Matter, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), 1.4: Measurement of Matter - SI (Metric) Units, https://www.youtube.com/watch?v=BLq5NibwV5g, aluminum oxide, a white powder that contains a 2:3 ratio of aluminum and oxygen atoms. For example, if you mix table salt into water, this mixture is homogeneous because the salt completely dissolves into the water, meaning that the salt particles are evenly distributed throughout the water. The size of the particles in a homogeneous mixture is smaller than one nanometer. The different proteins and other naturally occurring surfactants stabilize the dispersion which allows the fat droplets to remain suspended in the water without settling. Legal. But when examined under a microscope, milk consists of tiny substances. Quite A Few Contrasts Between Them. May 16, 2016 Milk is a heterogeneous mixture. The separation of components is difficult. What is a homogeneous mixture, and how does it differ from a heterogeneous one? https://www.thoughtco.com/examples-of-mixtures-608353 (accessed May 1, 2023). For example, you can make a homogeneous solution of sugar and water, but if there are crystals in the solution, it becomes a heterogeneous mixture. This is why milk is a heterogeneous mixture. Solid-liquid mixtures such as sand in water or tea leaves in tea are readily separated by filtration, which consists of passing the mixture through a barrier, such as a strainer, with holes or pores that are smaller than the solid particles. Concrete is a heterogeneous mixture. When the temperature is stable, milk is a homogeneous mixture by default, and a homogeneous mixture forms a uniform composition.
1986 El Camino For Sale In New Jersey, Second Chance Apartments In Suitland, Md, Articles I