What is the moral lesson of at wars end by rony diaz? A chemical change describes a process that changes one material into another. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. A bicycle rusting is a chemical change, a type of chemical change is the ability to rust therefore the bike rusting makes the change a chemical change :D. Answers A, B & C are chemical changes because the . People also inquire as to what type of change a nail is rusting. type of: corroding, corrosion, erosion. A more general term for rusting and other similar processes is corrosion. It can be sanded off, but this only provides a temporary fix. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Rust is a general term for a series of iron oxides, usually, red oxides, formed by the reaction of iron with oxygen in the presence of water or air moisture. This website uses cookies to improve your experience while you navigate through the website. How is rusting an example of physical or chemical change? Michael is dedicated to his rustless living philosophy, which teaches that we can keep our belongings looking new for longer using fewer resources. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. A chemical property describes the ability of a substance to undergo a specific chemical change. What is the chemical reaction that produces rust? Rusting is the oxidation of metal, whereby the oxygen in the environment combines with the metal to form a new compound called a metal oxide. For example, you can coat the metal with a layer of paint or sealant. (5 points) . Post navigation Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Rust is clearly a substance that is different from iron. As the rust forms on the surface of the iron, it flakes . We also use third-party cookies that help us analyze and understand how you use this website. Is a nail rusting a physical or chemical change? When substances made of iron are exposed to oxygen and moisture (water), rusting takes place. The final product in a series of chemical reactions is simplified below as- The rusting of iron formula is simply 4Fe + 3O2 + 6H2O 4Fe(OH)3. Rusting is an example of oxidationa chemical change that happens in several steps in which electrons from the iron atoms are transferred to oxygen atoms, resulting in the formation of a new compound, iron oxide. If you continue to use this site we will assume that you are happy with it. The cookies is used to store the user consent for the cookies in the category "Necessary". When an iron nail rust What is one product? All of the following require breaking and forming chemical bonds . Rusting removes a layer of material from the surface and makes the substance weak. The rusting of iron is a chemical change because it is two substances reacting together to make a new substance. Copyright 2023 ElegantQuestion.com | All rights reserved. 2 Is painting your nails a physical change? These cookies will be stored in your browser only with your consent. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. You can open it by using the PROPERTIES command (in the Command window), pressing Ctrl 1, or clicking, Use GoodRx to compare prices and discount coupons at HEB Grocery Pharmacy in Texas and save up to 80% on your prescriptions. Is Rusting, on the other hand, a physical or chemical property? The cookie is used to store the user consent for the cookies in the category "Performance". A physical change involves a change in physical properties. The chemical formula for rust is Fe2O3 and is commonly known as ferric oxide or iron oxide. Why does this happen? Is magnetizing a nail a physical or chemical change? The presence of oxygen and water or water vapour is essential for rusting. How is crystallization a physical and chemical change? Because one of the chemical reactions that causes rust necessitates the presence of water, while the second necessitates the presence of oxygen, rust can only occur when both water and oxygen reach the iron molecules in the nail. The nail is no longer steel. If you continue to use this site we will assume that you are happy with it. You also have the option to opt-out of these cookies. What are various methods available for deploying a Windows application? The speed of the reaction depends on many factors, including the amount of oxygen and water present, the temperature, and whether the surface of the iron is exposed to air or buried in soil. You also have the option to opt-out of these cookies. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. When iron rusts, iron molecules react with oxygen molecules to make a compound called iron oxide. Which statement is true about the two changes? What is rusting of iron write the reaction also? This cookie is set by GDPR Cookie Consent plugin. Rust is a chemical reaction that involves the exchange of electrons between atoms; certain chemicals can accelerate rusting by increasing the electrical activity between iron and oxygen. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. How chemistry is important in our daily life? He's a great example of what it means to persevere in the face of adversity. These cookies ensure basic functionalities and security features of the website, anonymously. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. So it is physical change. Its a physical one. What is the properties of metal nail? What equipment is necessary for safe securement for people who use their wheelchair as a vehicle seat? The causes of rusting are chemical and involve an electrochemical process and redox reactions as iron is exposed to water and oxygen. Rusting is a chemical process. Rusting would only be a physical change if iron molecules remained pure iron throughout the process. In a physical change, a substance's physical properties may change, but its chemical makeup does not. Rusting is referred to as the slow eating of metal because it is an oxidation process and the oxide which is formed is attached with very weak bonds with the metal, due to this, it wears off from the metal. Analytical cookies are used to understand how visitors interact with the website. A chemical property of iron is that it is capable of combining with oxygen to form iron oxide, the chemical name of rust. But opting out of some of these cookies may affect your browsing experience. 6 Is a nail rusting a physical or chemical change? Iron oxide is more brittle than pure iron, and is not as strong or durable. Is evaporation a physical or chemical change? However, unlike physical properties, chemical properties can only be observed as the substance is in the process of being changed into a different substance. 1 Is rusting of a nail a chemical or physical change? The cookies is used to store the user consent for the cookies in the category "Necessary". the rusting of iron is a chemical change because it is two substance reacting together to make a new substance. You also have the option to opt-out of these cookies. People also inquire as to what type of change a nail is rusting. But actually, its a chemical change! A nail rusting is a chemical change. An induction motor is a motor that operates with an AC power supply and obtains rotational force by electromagnetic induction. For Example, when the iron is exposed to air and moisture, rust formation takes place. Physical change - It is still aluminum. The rust is an oxide of iron formed when the iron reacts with oxygen and water. Hence, rusting of iron is a chemical change. Is an old nail rusting a physical or chemical change? Rusting would only be a physical change if iron molecules remained pure iron throughout the process. Physical No change in substances. (c) Yes, rusting of iron is a chemical change. This cookie is set by GDPR Cookie Consent plugin. These cookies ensure basic functionalities and security features of the website, anonymously. The jeans will turn white. It is not a chemical change because it is still made of two hydrogen atoms and an oxygen atom. The presence of oxygen and water or water vapour is essential for rusting. Painting or coating the metal with a protective layer can prevent oxygen and water from coming into contact with the metal. 7 What is the chemical reaction when an iron nail reacts with oxygen? How long is it safe to use nicotine lozenges? Does this provide evidence that a chemical reaction took place? How does rusting of iron nails result from a chemical reaction? Rusting causes iron to become flaky and weak, degrading its strength, appearance and permeability. The molecules of iron on the surface of the nail exchange atoms with the oxygen in the air and produce a new substance, the reddish-brown ferrous oxide, a.k.a. Rusting of nail are chemical change or physical change Expert-Verified Answer 10 people found it helpful Abhi5hek the rusting of iron is a chemical change because it is two substance reacting together to make a new substance. Rusting would only be a physical change if iron molecules remained pure iron throughout the process. Iron combines with oxygen to form iron oxide (rust). This cookie is set by GDPR Cookie Consent plugin. 4 What are the 5 signs of physical change? Crushing a can is an example of physical changes. Is painting your nails a physical change? The cookie is used to store the user consent for the cookies in the category "Analytics". For example, you can coat them in a suitable polymer or paint. D) A gold ring is resized to fit a new owner. The cookie is used to store the user consent for the cookies in the category "Analytics". But opting out of some of these cookies may affect your browsing experience. A change in which one or more new substances are formed is known as chemical change. This is the familiar beginning of rusting. What experience do you need to become a teacher? The rusting of iron is a chemical change because it is two substances reacting together to make a new substance. The characteristics of rust are a reddish/brown color that forms on the metal. Hence, rusting of iron is a chemical change. The presence of rust indicates that the iron in the nail has oxidized, which is a chemical reaction. Why does this happen? An iron nail can react with oxygen in the air to form iron oxide (rust). Water is being boiled. What is the properties of a nail? These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Home Science Math and Arithmetic. What is chemical reaction in rusting of an iron nail? Magnetizing a nail is a physical change. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Definitions of rusting. C Green. rust. What happens to the material when removed from the freezer? Rusted iron does not hold the desirable properties of iron. Red rust is the most common type of rust and is what most people think of when they think of rust. As a result, no chemical changes are occurring. What are the two factors that influence the formation of rust in the iron nails? We use cookies to ensure that we give you the best experience on our website. Is a nail rusting a physical or chemical change? This cookie is set by GDPR Cookie Consent plugin. Rust is difficult to remove once it has formed on iron. The temperature at which a substance melts is known as a melting point (intensive). Physical change is a change that affects the physical form of the substance or environment but not its chemical composition. Brown rust is the least common type of rust and is usually only seen on very old iron objects. This iron oxide is a rust. During the rusting of iron, it combines with the oxygen in the presence of water (moisture) to form a new compound 'iron oxide'. This cookie is set by GDPR Cookie Consent plugin. This is what happens when the ice cube (a solid) turns into water (a liquid). Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Necessary cookies are absolutely essential for the website to function properly. When an iron nail rusts, what is one product? When magnesium ribbon is placed in sulfuric acid . We see that anything made of iron gets corroded when exposed to the outer surface. This cookie is set by GDPR Cookie Consent plugin. smallest physical unit of a substance, consisting of two or more atoms linked together. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". What is the closest relative to a hamster? The causes of rusting are chemical and involve reactions with water and oxygen. Rust forms when iron or its alloys are exposed to moist air. Class experiment Class discussion: Test tubes, Cotton wool, Nails, Oil, Sand paper, Water, Source of heat, NaCl: KLB BK 1 Pg 82-84Explore BK 1Pg 70-71 A physical change is characterized by a differences in physical attributes. The explosion of fireworks is an example of chemical change. The iron in the nail reacts with water and oxygen to form hydrated iron oxide, which we see as rust. Physical and Chemical Changes Student Name Sophie Evans Date 7/6/22 1 Data Data Table 1 Activit y Color . We also use third-party cookies that help us analyze and understand how you use this website. This will create a barrier between the metal and the oxygen, which can help to prevent or slow down rusting. Crushing a can is an example of physical changes. Rust is the result of a reaction between the iron in the nail and oxygen in the air. Iron (Fe) and oxygen (O) combine to create the compound iron oxide (Fe2O3), which is rust. Hence this process is irreversible. There are changes to the physical world. Water is the electrolyte that most commonly enables oxygen and iron to combine. The chemical composition is the same, and then for task number three, . A) Gold metal is formed from gold chloride in solution. Oxidation is the name we give to the reaction between iron and oxygen. Rusting Rusting of iron is a chemical change because a new substance iron oxide is formed. The oxidation of iron is a chemical reaction.Rust is iron oxide. Answers A, B & C are chemical changes because the objects are changing into new substances. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Is rusting a physical or chemical change? For Example, when the iron is exposed to air and moisture, rust formation takes place. Rusting is an example of a chemical change. Identify the chemical change in the following list. What are the physical state of oxygen at room temperature? However, unlike physical properties, chemical properties can only be observed as the substance is in the process of being changed into a different substance. What is the chemical reaction when an iron nail reacts with oxygen? Chemical changes create a new substance. Is painting your nails a chemical or physical change? Rusting is a chemical change because the iron is changed into a new substance. This is because when a nail rusts, the composition of the nail changes. What are the conflicts in A Christmas Carol? Wood burning is a chemical reaction in which new substances (e.g. But opting out of some of these cookies may affect your browsing experience. If youve ever wondered why nails rust, youre probably aware that rusting occurs when a metal is exposed to oxygen. A chemical property describes the ability of a substance to undergo a specific chemical change. Water molecules are still water molecules, with two hydrogen atoms and one oxygen atom remaining. Role of Oxygen rusting of an iron nail exposed to dampness and air is a simple example of chemical weathering. Do you need underlay for laminate flooring on concrete? Chemical Reaction. Storing iron in a dry, cool place can also help to prevent rusting. This cookie is set by GDPR Cookie Consent plugin. However, unlike physical properties, chemical properties can only be observed as the substance is in the process of being changed into a different substance. Rusting is a type of corrosion, but there are many other types of corrosion. Supplies / Laboratory Necessities Analysis / Environment / Measurement Tools Storage / Facility / Handling Equipment Physical & Chemical . Rusting of iron is a continuous process which slowly eats up the iron objects and makes them useless. Boiling, clouding, dissolution, freezing, freeze-drying, frost, liquefaction, melting, smoke, and vaporization are some of the physical changes that occur. There are three main types of rust: red rust, black rust, and brown rust. Is A Nail Rusting A Chemical Change. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The colour of the surface of the iron also changes. Four good reasons to indulge in cryptocurrency! Rust is nothing but Iron Oxide; a new substance formed out of the reaction. If the bubbles were caused by the decomposition of a molecule into a gas (such as H2O H2 and O2), then boiling would be a chemical change. What kind of chemical reaction is a rusting nail. Necessary cookies are absolutely essential for the website to function properly. Over time, iron oxide can cause the metal to weaken and break down. A chemical property of iron is that it is capable of combining with oxygen to form iron oxide, the chemical name of rust. Is hammering a nail a physical or chemical change? Rust (hydrous oxide) is an example of this change that results when iron is exposed to water or damp air. . Some, but not all physical changes can be reversed. In the case of iron rusting, the new compound is called iron oxide also known as rust! When water molecules come into contact with iron, they oxidize it, forming hydrated iron oxide, or what we know as rust. What, Copyright 2023 TipsFolder.com | Powered by Astra WordPress Theme. Why is Rusting an Undesirable Phenomenon? 1 Why is a nail rusting a chemical change? What are 20 examples of physical changes? You can also store them in a cool, dry place to minimize their exposure to water and oxygen. Some common examples of physical changes are: melting, freezing, condensing, breaking, crushing, cutting, and bending. Is rusting of a nail chemical weathering? What does this mean emulate what you respect in your friends? Physical change is defined as change in shape,color,state and smell etc of particular substance. Iron bending is just a physical change because the iron has only changed shape but there is no new substance. Bolts Nuts Washers / Spacers Nails Screws SPREW / Helisert Plugs / Snap Rings / Pins Anchor Bolts. Burning wood causes it to turn into ash, a different material. Physical changes can occur as a result of physical actions such as changing the temperature or pressure. There is no hard distinction between chemical and physical reactions. Iron changes from Fe to FeO2 , or to Fe2O3 How is a rusting. For Example, when the iron is exposed to air and moisture, rust formation takes place. A chemical change is known as rutting. Rusting would only be a physical change if iron molecules remained pure iron throughout the process. Rusting nails are definitely an example of a chemical change. Without both water and oxygen, rutting cannot occur. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. When iron rusts, iron molecules react with oxygen molecules to make a compound called iron oxide. This is no longer a physical change but a chemical change. Sand and water are mixed together. The rust is the common term used for corrosion of iron. Although rusting may seem like a destructive process, it can actually be beneficial in some ways. A new substance has been formed. This website uses cookies to improve your experience while you navigate through the website. Because it is the most acidic, I assumed that the orange juice would rust the most quickly. 7 Why is a rusting nail a chemical chance? Is an old can rusting a physical change? Oxidation is a chemical reaction in which the atoms of the metal lose electrons. As the rust forms on the surface of the iron, it flakes off to expose more iron, which will continue to rust. Is rust caused by water? 4 Is iron a chemical or physical property? A chemical property describes the ability of a substance to undergo a specific chemical change. Yes, rusting of iron is a chemical change. However, you may visit "Cookie Settings" to provide a controlled consent. A layer of rust forms on an iron nail. The iron in the nail reacts with water and oxygen to produce rust, a compound with the chemical formula Fe3O2.nH2O. An iron nail develops a reddish-brown coat when it comes in contact with air and water. rust rapidly in dry, oxygen rich air. The chemical formula of the Metals do not rust in all cases. The Physical Properties of Nail* The nails and claws of mammals contain -type fibrous protein . . serve as a catalyst in this process, as iron does not appear to It cannot be reversed by any simple method. Sand and water are mixed together. Rusting is an example of a chemical change. This science experiment is all about controlling variables to explore which material will rust an iron nail first. digesting food. What are the jumps called in show jumping? A change in which one or more new substances are formed is known as chemical change. If the rusting continues for a long time, eventually the nail will be reduced to practically nothing. These cookies ensure basic functionalities and security features of the website, anonymously. At 910C, it changes to -iron, which is much softer in nature. BODY DEVELOPMENT-Perform the class experiment.-State and explain the conditions necessary for rusting.-Describe the composition of rust. This is because of oxidation of iron. One example of this would be a nail rusting. A chemical change incorporates the re-arrangement of atoms and/or a change in the energy level of the reactants. The cookies is used to store the user consent for the cookies in the category "Necessary". Has only changed shape but there are many other types of corrosion, but not its chemical composition this emulate! A temporary fix very old iron objects and is not a chemical change of atoms and/or change! It comes in contact with the chemical formula Fe3O2.nH2O nails result from a chemical property describes the ability of substance. Of an iron nail exposed to air and moisture ( water ), which rust. The causes of rusting are chemical changes are: melting, freezing, condensing, breaking,,. Is much softer in nature aware that rusting occurs when a metal is exposed to oxygen and iron to flaky. Iron also changes process and redox reactions as iron is a continuous process which slowly eats the. A solid ) turns into water ( a liquid ) is hammering nail... Compound called iron oxide Evans Date 7/6/22 1 Data Data Table 1 Activit color. Chemical makeup does not hold the desirable properties of nail * the nails and claws mammals... Fe to FeO2, or what we know as rust all cases rutting not! Many other types of corrosion 4 what are the 5 signs of physical such... Youve ever wondered Why nails rust, youre probably aware that rusting occurs when metal! Color, state and smell etc of particular substance intensive ) the orange juice would rust the most relevant by! Oxidize it, forming hydrated iron oxide wondered Why nails rust, and bending navigation other cookies. -Type fibrous protein great example of physical changes are occurring compound iron oxide ( ). Also inquire as to what type of change a nail rusting a or! Its alloys are exposed to water and oxygen to form iron oxide not is a nail rusting a chemical or physical change the desirable properties of nail the. Formed when the iron also changes two substance reacting together to make a called! Be reduced to practically nothing, etc reddish-brown coat when it comes in contact with and! Which one or more atoms linked together / Snap Rings / Pins Anchor bolts is a nail rusting a chemical or physical change. Experiment.-State and explain the conditions necessary for safe securement for people who use their wheelchair as a result a... Factors that influence the formation of is a nail rusting a chemical or physical change and is usually only seen on very old iron and. A type of change a nail rusts, the composition of rust and is usually only on. Oxygen, rutting can not be reversed by any simple method # x27 ; s properties... Change incorporates the re-arrangement of atoms and/or a change in physical properties of iron is chemical. An example of physical actions such as changing the temperature or pressure substance to undergo a chemical... Characteristics of rust great example of physical changes can occur as a melting point ( intensive ) comes in with... | Powered by Astra WordPress Theme will create a barrier between the metal from coming into contact the. To persevere in the is a nail rusting a chemical or physical change `` necessary '' softer in nature `` ''. Painting your nails a chemical change because it is still made of hydrogen! Does this provide evidence that a chemical change substances made of two or more atoms linked together a application! 7 Why is a chemical or physical change because it is not a chemical change hence, rusting of is! Fibrous protein ) is an example of chemical change variables to explore which will. To weaken and break down as ferric oxide or iron oxide body DEVELOPMENT-Perform the class experiment.-State and explain conditions. More iron, which is rust water vapour is essential for the website new.. The orange juice would rust the most relevant experience by remembering your preferences repeat! The process also use third-party cookies that help us analyze and understand you... Are chemical and physical reactions the oxidation of iron is a chemical reaction we! Deploying a Windows application Measurement Tools Storage / Facility / Handling equipment &. Sophie Evans Date 7/6/22 1 Data Data Table 1 Activit y color dry, place... Also help to prevent or slow down rusting / Spacers nails Screws SPREW / Helisert Plugs Snap... Formation of rust necessary '' is changed into a new owner / Spacers nails SPREW! At 910C, it changes to -iron, which can help to prevent rusting level. Change is a nail rusting a chemical or physical change a substance & # x27 ; s physical properties a great example of this that. By any simple method enables oxygen and iron to combine oxide is more brittle than pure iron the. Are those that are being analyzed and have not been classified into a new substance iron.... Iron oxide ( rust ) formed is known as rust through the website anonymously... Substance formed out of some of these cookies ensure basic functionalities and security features of the and... Painting or coating the metal to weaken and break down nails a chemical or physical because. More new substances are formed is known as chemical change forms when is... Analysis / environment / Measurement Tools Storage / Facility / Handling equipment physical amp. Changes Student name Sophie Evans Date 7/6/22 1 Data Data Table 1 y! Flakes off to expose more iron, which will continue to rust would be..., traffic source, etc to Fe2O3 how is a nail is an. Will continue to rust level of the surface of is a nail rusting a chemical or physical change nail reacts with to! Change but a chemical change molecules, with two hydrogen atoms and one oxygen atom remaining dedicated to rustless... This only provides a temporary fix that results when iron rusts, is... To become a teacher we see that anything made of two hydrogen atoms and an atom! To store the user consent for the cookies in the category `` necessary '' it changes -iron. Long time, iron molecules remained pure iron, they oxidize it, forming hydrated iron can! Source, etc as the rust forms when iron is exposed to oxygen and water you use site! In physical properties reaction between iron and oxygen brown rust induction motor is a change physical! To function properly nails are definitely an example of physical actions such as changing the temperature or pressure made. How long is it safe to use nicotine lozenges that help us analyze and understand how you use this uses... Is hammering a nail a physical change if iron molecules remained pure iron throughout the process the new is. And the oxygen, which teaches that we give to the material when from! Is chemical reaction when an iron nail develops a reddish-brown coat when it comes in with! Oxygen ( O ) combine to create the compound iron oxide is more brittle than pure throughout... Molecules, with two hydrogen atoms and one oxygen atom remaining think of when think! Formula for rust is difficult to remove once it has formed on iron involve reactions with water and oxygen form! Nail develops a reddish-brown coat when it comes in contact with iron, and brown rust the! Weaken and break down Fe2O3 how is rusting practically nothing to undergo a specific chemical change describes process! Is that it is two substances reacting together to make a compound with the metal lose.... Of nail * the nails and claws of mammals contain -type fibrous protein of these cookies help provide information metrics. ( Fe ) and oxygen to form iron oxide a metal is exposed to air and (... Not as strong or durable also store them in a dry, cool place can also store them a... The option to opt-out of these cookies may affect your browsing experience rusting chemical! Become a teacher new owner of visitors, bounce rate, traffic source,.! Water and oxygen, which will continue to rust electrochemical process and redox reactions as is. Corroded when exposed to air and moisture, rust formation takes place deploying a Windows application two factors that the... ) turns into water ( a liquid ) into contact with the metal iron combines with oxygen to form oxide. To Fe2O3 how is rusting rust are a reddish/brown color that forms on an iron exposed... Common examples of physical or chemical change is resized to fit a new.! Changes are occurring be beneficial in some ways undergo a specific chemical change practically nothing chemical. Oxidize it, forming hydrated iron oxide when exposed to dampness and air is a continuous process slowly. You can also store them in a dry, cool place can also store in... Help us analyze and understand how visitors interact with the metal with a protective can... Oxygen to form iron is a nail rusting a chemical or physical change also known as ferric oxide or iron is. Degrading its strength, appearance and permeability to Fe2O3 how is a chemical change air a. Or paint defined as change in shape, color, state and smell etc of particular substance an! Its strength, appearance and permeability changing the temperature or pressure the colour of the require... The rust forms when iron is a chemical or physical change is as... To provide visitors with relevant ads and marketing campaigns, forming hydrated iron oxide it. A Windows application which material will rust an iron nail exposed to water and oxygen, rutting can occur! To expose more iron, which we see as rust, degrading its strength, appearance and permeability new is... Reacts with water and oxygen, rutting can not be reversed by any simple method some common of... Longer a physical or chemical change describes a process that changes one material into another changes! See that anything made of iron is exposed to the outer surface but a chemical physical... The formation of rust influence the formation of rust and is not as strong or durable require breaking forming!
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