Element M could be ____. Some oxides can react directly with water to form an acidic, basic, or amphoteric solution. For example, sulfurous acid (SO 2), sulfuric acid (SO 3), … Performance & security by Cloudflare, Please complete the security check to access. Answer: (d) basic. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Metals react with oxygen to form oxides which is basic in nature.Some metals are dissolve in water to give alkaline solution e.g magnesium oxides etc. 19. with the oxidation number of the oxygen equal to -1/2. When MO is dissolved in water, the resulting solution is basic. When sulphur reacts with oxygen, the oxide formed is ___ in nature. Metal react with oxygen to form metal Oxide. Most metals form oxides with the oxygen in a -2 oxidation state. Acidic oxides are known as acid anhydrides (e.g., sulfur dioxide is sulfurous anhydride and sulfur trioxide is sulfuric anhydride) and when combined with bases, they produce salts, e.g., $\ce{ SO_2 + 2NaOH \rightarrow Na_2SO_3 + H_2O} \label{4}$. They also react with water to form metal hydroxides which are alkaline in nature because these metal hydroxides release There are two general statements that describe the … The physical properties are insufficient to identify if a substance is metal or a nonmetal and so there is need to test chemical properties of metal and non-metal . Can an oxide be neither acidic nor basic? Metals like zinc and aluminium react with sodium hydroxide to produce ____ gas. Metals displace hydrogen from water whereas non-metals form acidic or neutral oxides. An amphoteric solution is a substance that can chemically react as either acid or base. sulphur dioxide and carbon dioxide are acidic in nature. Oxides of most nonmetals combine with a base to form _____? Notice how the amphoteric oxides (shown in blue) of each period signify the change from basic to acidic oxides, The figure above show oxides of the s- and p-block elements. Question 12. With the oyxgen exhibiting an oxidation number of -2. Substances that are not reactive are called unreactive or inert. Two examples of combustion reactions are: Iron reacts with oxygen to form iron oxide: 4 Fe + 3 O 2 → 2 Fe 2 O 3 They are also termed as acid anhydrides. The resulting oxide belongs to this group of substances. These reactions are called combustion reactions. 3. (b) Sodium and magnesium oxides will be basic in nature. Metal and non-metal oxides. \underset{\large{Acidic}}{\underbrace{P_4O_{10},\: SO_3,\:Cl_2O_7}}\hspace{20px}\). Non-metals react with oxygen to form oxides which is acidic in nature.Some non-metals are dissolve in water to give acidic solution e.g carbon dioxide,depressurization etc. 2. • React with oxygen to form acidic oxides • Tend to attract electrons to form negative ions (anions) C O (as a liquid) Ne. By direct heating of an element with oxygen: Many metals and non-metals burn rapidly when heated in oxygen or air, producing their oxides, e.g., $P_4 + 5O_2 \xrightarrow{Heat} 2P_2O_5$. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. (b) basic oxides. 19. With oxygen, it forms Copper Oxide. Some of them tend to form hydroxides immediately after oxides and so they are present in nature in their hydroxide form. Acid oxides , also called non – metal oxides or anhydrides, arise from the combination of a metal with oxygen. METALS AND ACID • Many metals will react with acid. Cs + O2 → CsO2 A peroxide is a metallic oxide which gives hydrogen peroxide by the action of dilute acids. Metals, except Al and Zn, react with oxygen to form _____ oxides. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. Non-metals react with oxygen to form non-metal oxides.Non-metal oxides are acidic in nature.They turn blue litmus to red. Your IP: 64.91.250.23 The oxides of elements in a period become progressively more acidic as one goes from left to right in a period of the periodic table. Some metals react vigorously with water (oxygen in water). They are also called acid anhydride, which are oxides that react with water to form an acid, or with a base to form a salt. Thus Al2O3 entails the marking point at which a change over from a basic oxide to acidic oxide occurs. 20. Click to see full answer. Petrucci, Ralph, William Harwood, Jeffry Madura, and Geoffrey Herring. On the other hand, nonmetals react with oxygen to form nonmetallic oxides. \underset{\large{Amphoteric}}{\underbrace{Al_2O_3,\: SiO_2}}\hspace{20px} Nonmetallic oxides react with water to form acids. (b) Nonmetals react with oxygen to form nonmetallic oxides. These metallic oxides are basic because they react with water to form bases. Watch the recordings here on Youtube! Metals react with oxygen to form their oxides which are generally (a) Neutral in nature (b) Basic in nature … Get the answers you need, now! Print. Oxides can be generated via multiple reactions. An amphoteric solution is a substance that can chemically react as either acid or base. Oxides get formed via two procedures, one of it being oxidation and other being hydrolysis. 20. When metals are burnt in air,they react with oxygen of air to form metal oxide. Na 2 O 2 Many metals and non-metals react with oxygen in the air when they are heated to produce metal oxides and non-metal oxides. Many metals and non-metals react with oxygen in the air when they are heated to produce metal oxides and non-metal oxides.. a. selenium ... Oxides of the active metals combine with acid to form ____. $$Rb + O_2 \; (excess) \rightarrow RbO_2$$. Here are two examples for the non-metals carbon and sulfur. These metallic oxides are basic because they react with water to form bases. Yes, an example is carbon monoxide (CO). Due to this reason it kept under kerosene as it doesn't reacts with kerosene. But most of the non-metals reacts with oxygen on ignition. Below are a few. a. metal hydroxides b. metal hydrides c. hydrogen gas d. water and a salt Answer: (b) basic oxides Usually, most of the metals react with oxygen to form basic oxides. Metals, on being burnt in air, react with the oxygen to form metal oxides. Like bases, these metal oxides also react with acids in the same way and produce salt and water. Acidic oxides can also react with basic oxides to produce salts of oxoanions : (b) When metals combine with oxygen, they form basic oxides. When a small amount of acid is added to water ionization is initiated which helps in electrochemical reactions as follows. Superoxides: Often Potassium, Rubidium, and Cesium react with excess oxygen to produce the superoxide, MO2. Metal react with oxygen to form metal Oxide Metal + Oxygen → Metal Oxide 4K + O2 → […] When reacting with water, these compounds form oxacid acids , but if they are in the presence of hydroxides , what is formed is a salt and water. Metal M is Copper and black coloured product is copper oxide. Peroxides: Often Lithium and Sodium reacts with excess oxygen to produce the peroxide, $$M_2O_2$$. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Therefore, oxides of sulphur and carbon i.e. When a substance reacts with oxygen, we say it oxidises. You may need to download version 2.0 now from the Chrome Web Store. • Metals form basic oxides whereas non-metals form acidic or neutral oxides. Metal oxides are basic in nature.They turn red litmus to blue. Non-metals combine with oxygen to form acidic oxides or neutral oxides. The reaction of a metal with a nonmetal produces a _____? Amphoteric oxides exhibit both basic as well as acidic properties. These oxides differ from metallic oxides because they are acidic in nature. They are oxides of either nonmetal or of metals in high oxidation states. 9th Edition. If you're seeing this message, it means we're having trouble loading external resources on our website. Oxides are binary compounds of oxygen with another element, e.g., CO2, SO2, CaO, CO, ZnO, BaO2, H2O, etc. Examples of Oxides (Group 1 elements react with oxygen): Lithium reacts with oxygen to give oxide. Cloudflare Ray ID: 61030ed03fb7ea9a Generally Group 1 and Group 2 elements form bases called base anhydrides or basic oxides e.g., $\ce{K_2O \; (s) + H_2O \; (l) \rightarrow 2KOH \; (aq) } \label{5}$. Magnesium is a metal. $BaO_2 + H_2SO_4 \rightarrow BaSO_4 + H_2O_2 \label{22}$, $Na_2O_2 + H_2SO_4 \rightarrow Na_2SO_4 + H_2O_2 \label{23}$. 877. An oxide is a binary compound that we obtain upon the reaction of oxygen with other elements. However, it is also possible for an oxide to be neither acidic nor basic. K & Na reacts with Oxygen present air and form K2O & Na2O. Acidic oxides are formed by the reaction of non-metals with oxygen to give an acid. Answer: (d) acidic. Metal oxides on the left side of the periodic table produce basic solutions in water (e.g. Na2O and MgO). Why is it difficult to obtain oxygen directly from water? General Chemistry: principles and modern applications. For example, in third period, the behavior of oxides changes as follows: $$\underset{\large{Basic}}{\underbrace{Na_2O,\: MgO}}\hspace{20px} oxides. Non-metals. Li2O). screening by the valence electrons in atoms is_____ less efficient than that by core electrons. An element reacts with oxygen to form an oxide which dissolves in dilute hydrochloric acid The oxide formed also turns a solution of red litmus blue Is the element a metal or non-metal Explain with the help of a suitable example pls its urgent - Science - Metals and Non-metals An oxide that combines with water to give an acid is termed as an acidic oxide. When they react with an acid, they produce salt and water, showing basic properties. The table shows three of these reactions in detail. For example: Magnesium is a metal and magnesium oxide is basic in nature. For example \(ZnO$$ exhibits basic behavior with $$HCl$$, Similarly, $$Al_2O_3$$ exhibits basic behavior with $$H_2SO_4$$. salt. $PbO_2 + 4HCl \rightarrow PbCl_2 + Cl_2 + 2H_2O \label{24}$, $2PbO_2 + 2H_2SO_4 \rightarrow 2PbSO_4 + 2H_2O + O_2 \label{25}$. We saw evidence of the reactive nature of oxygen when we observed how it reacted with iron and magnesium to form metal oxides. Examples: NO, CO 2 Some metals will react with oxygen when they burn. (a) alkaline (b) neutral (c) basic (d) acidic. water and a salt. Oxides are chemical compounds with one or more oxygen atoms combined with another element (e.g. Metals react with oxygen to form (a) acidic oxides. • Mg + O 2-> MgO. Metallic oxides are basic in nature because they react with dilute acids to form salt and water. with the oxidation number of the oxygen equal to -1/2. METAL REACTIVITY • Most metals react with oxygen. CO doesn’t produce a salt when reacted with an acid or a base. Each of them can be described briefly. Acidic oxides react with water to form acids.. Recall: Solutions of these acids in water have a pH value of less than 7. (d) there is no reaction. Based on their acid-base characteristics oxides are classified as acidic, basic, amphoteric or neutral: There are different properties which help distinguish between the three types of oxides. While reacting with alkalies they form salt and water showing acidic properties. They are oxides of either nonmetals or of metals in high oxidation states.Their chemistry can be systematically understood by taking an oxoacid and removing water from it, until only an oxide remains. The LibreTexts libraries are Powered by MindTouch® and 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. (b) Sodium, potassium and lithium are stored under oil. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. burn in oxygen) in the atmosphere to form oxides.. Oxides are classified as: Acidic; Basic; Amphoteric; Neutral . The general equation for this reaction is: metal + oxygen → metal oxide. Some non-metal oxides, such as nitrous oxide (N 2 O) and carbon monoxide (CO), do not display any acid/base characteristics. Acid anhydrides usually have a low melting and boiling point except for compounds like B 2 O 3 and SiO 2 which have high melting points and form giant molecules. An amphoteric solution is a substance that can chemically react as either acid or base. Dioxides like PbO2 and MnO2 also contain higher percentage of oxygen like peroxides and have similar molecular formulae. Acidic oxide: Non-metals react with oxygen to form acidic compounds of oxides which are held together by covalent bonds. Lets start with reaction of metals with oxygen. The term anhydride ("without water") refers to compounds that assimilate H2O to form either an acid or a base upon the addition of water. Basicity of an oxide increases with increasing ionic (metallic) character. an acid. [ "article:topic", "shrestha", "Acidic Oxides", "basic oxides", "Neutral Oxides", "showtoc:no", "transcluded:yes", "source[1]-chem-544" ], https://chem.libretexts.org/@app/auth/2/login?returnto=https%3A%2F%2Fchem.libretexts.org%2FCourses%2FUW-Whitewater%2FChem_260%253A_Inorganic_Chemistry_(Girard)%2F06%253A_Acid-Base_Chemistry%2F6.04%253A_Oxides, 6.3: Molecular Structure and Acid-Base Behavior, http://www.wou.edu/las/physci/ch412/oxides.html, information contact us at info@libretexts.org, status page at https://status.libretexts.org. Missed the LibreFest? As a general rule, metal oxides are basic and nonmetal oxides are acidic. The individual element must be in its highest possible oxidation state because the trend does not follow if all oxidation states are included. Example: SO3 + H2O → H2SO4 Basic Oxide. Aluminium oxides are amphoteric (reacting both as a base or acid). (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. Oxygen can thus be obtained from acidified water by its electrolysis. A peroxide is a metallic oxide which gives hydrogen peroxide by the action of dilute acids. These are termed as oxides because here, oxygen is in combination with only one element. Metals react with oxygen to give Metal Oxides. Cl2O, SO2, P4O10). Water as such is a neutral stable molecule. Non-metals react with oxygen to form acidic compounds of oxides which are held together by covalent bonds. They contain more oxygen than the corresponding basic oxide, e.g., sodium, calcium and barium peroxides. It is called an oxidation reaction. Metal + Oxygen → Metal Oxide 4K + O 2 → 2K 2 O . Oxides of the active metals combine with an acid to form _____? The equations follow as: Question 14. Neutral oxides show neither basic nor acidic properties and hence do not form salts when reacted with acids or bases, e.g., carbon monoxide (CO); nitrous oxide (N2O); nitric oxide (NO), etc., are neutral oxides. • 18. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. It may also help to examine the physical properties of oxides, but it is not necessary. It is important to remember that the trend only applies for oxides in their highest oxidation states. An amphoteric solution is a substance that can chemically react as either acid or base. When reacting with water, these compounds form oxacid acids , but if they are in the presence of hydroxides , what is formed is a salt and water. An element forms an oxide A2O3 which is acidic in nature. $4 Li + O_2 \rightarrow 2Li_2O \label{19}$ Peroxides: Often Lithium and Sodium reacts with excess oxygen to produce the peroxide, $$M_2O_2$$. How do metals and non-metals react with acids? Acidic oxides are oxides of non-metals, which is also known as non-metallic oxides. Basic oxides are the oxides of metals. Dioxides on reaction with concentrated HCl yield Cl2 and on reacting with concentrated H2SO4 yield O2. If soluble in water, they react with water to produce hydroxides (alkalies) e.g., $\ce{ CaO + H_2O \rightarrow Ca(OH)_2} \label{6}$, $\ce{ MgO + H_2O \rightarrow Mg(OH)_2} \label{7}$, $\ce{ Na_2O + H_2O \rightarrow 2NaOH } \label{8}$. Superoxides: Often Potassium, Rubidium, and Cesium react with excess oxygen to produce the superoxide, $$MO_2$$. These compounds can also be called as acid anhydrides. Oxides: Group 1 metals react rapidly with oxygen to produce several different ionic oxides, usually in the form of $$M_2O$$. Element Answer: (d) acidic. For example, when HSO4- reacts with water it will make both hydroxide and hydronium ions: $HSO_4^- + H_2O \rightarrow SO_4^{2^-} + H_3O^+ \label{11}$, $HSO_4^- + H_2O \rightarrow H_2SO_4 + OH^- \label{12}$. There is a trend within acid-base behavior: basic oxides are present on the left side of the period and acidic oxides are found on the right side. Soln: A is a non-metal because oxides of non-metals are acidic in nature. Metal oxides, peroxides, and superoxides dissolve in water actually react with water to form basic solutions. (a) alkaline (b) neutral (c) basic (d) acidic. Elements react with oxygen (aka. (a) acidic (b) neutral (c) amphoteric (d) basic. These type of oxides exhibit both the properties of acid and base. Non-metals react with oxygen in the air to produce non-metal oxides. Acid oxides , also called non – metal oxides or anhydrides, arise from the combination of a metal with oxygen. Metals react with oxygen to form metallic oxides. Reaction of metals with Oxygen: Highly reactive metals . www.transtutors.com/chemistry...ts/oxides.aspx. Hence, Magnesium oxides are basic in nature. 57. They are acidic oxide, basic oxide and amphoteric oxide and neutral oxide. 58. Acidic oxides are the oxides of non-metals (Groups 14-17) and these acid anhydrides form acids with water: $\ce{SO_2 + H_2O \rightarrow H_2SO_3} \label{1}$, $\ce{ SO_3 + H_2O \rightarrow H_2SO_4} \label{2}$, $\ce{CO_2 + H_2O \rightarrow H_2CO_3} \label{3}$. Acidic oxides are formed by the reaction of non-metals with oxygen to give an acid. Element M reacts with oxygen to form an oxide with the formula MO. Acidic Oxide. purple: basic oxides blue: amphoteric oxides pink: acidic oxides. Highly reactive metals burn vigorously when reacts with oxygen forming metal oxide. with the oxidation number of the oxygen equal to -1. All nonmetals form covalent oxides with oxygen, which react with water to form acids or with bases to form salts. If we take a closer look at a specific period, we may better understand the acid-base properties of oxides. It is difficult to break the covalent O-H bonds easily. Hence, electrical energy through the electrolysis process is applied to separate dioxygen from water. Non-Metal Oxide reactions The oxides of non-metals are acidic.If a non-metal oxide dissolves in water, it will form an acid. Peroxides and Dioxides. Oxygen is highly electronegative and as a result of which it forms highly stable bonds, end products being oxides. However, it is also possible for an oxide to be neither acidic nor basic, but is a neutral oxide. Oxides of most nonmetals combine with water to form ____? There are different properties which help distinguish between the three types of oxides. Nonmetallic oxides react with water to form acids. Metals react with oxygen to form basic oxides. Give reasons : (a) Platinum, gold and silver are used to make jewellery. Hydrogen reacts with oxygen to form neutral oxide called water. The resulting oxide belongs to this group of substances. $Cs + O_2 \rightarrow CsO_2 \label{21}$. Metals, except Al and Zn, react with oxygen to form _____ oxides. Have questions or comments? For more information contact us at info@libretexts.org or check out our status page at https://status.libretexts.org. • Metals have varying levels of reactivity. Most nonmetal oxides are acidic and form oxyacids, which in turn yield hydronium ions (H 3 O +) in aqueous solution. 1)When sulphur burns in air,it combines with the oxygen of air to form sulphur dioxide (acidic oxide) S (s) + O2 (g) ——> SO2 (g) Sulphur dioxide dissolves in water to form sulphurous acid solution. $H_2 + O_2 \rightarrow H_2O_2 \label{20}$. 1. Answer: Metals react with acids to form respective salts along with evolution of hydrogen gas that burns with a pop sound. They react with acids to produce salts, e.g., $\ce{ MgO + 2HCl \rightarrow MgCl_2 + H_2O } \label{9}$, $\ce{ Na_2O + H_2SO_4 \rightarrow Na_2SO_4 + H_2O} \label{10}$. (a) When non-metals react with oxygen, they form acidic oxides or neutral oxides. (a) acidic (b) neutral (c) amphoteric (d) basic. These compounds can also be called as acid anhydrides. With the oyxgen exhibiting an oxidation number of -2. Aluminum oxide shows acid and basic properties of an oxide, it is amphoteric. When they react with water … See section above on Properties of Amphoteric Oxides for more detail. Identify A as metal or non-metal. Acidic oxides, or acid anhydride, are oxides that react with water to form an acid, or with a base to form a salt. Non-metals react with oxygen to form acidic oxides. By reaction of oxygen with compounds at higher temperatures: At higher temperatures, oxygen also reacts with many compounds forming oxides, e.g., $2PbS + 3O_2 \xrightarrow{\Delta} 2PbO + 2SO_2$, $2ZnS + 3O_2 \xrightarrow{\Delta} 2ZnO + 2SO_2$, $C_2H_5OH + 3O_2 \rightarrow 2CO_2 + 3H_2O$, $CaCO_3 \xrightarrow{\Delta} CaO + CO_2$, $2Cu(NO_3)_2 \xrightarrow{\Delta} 2CuO + 4NO_2 + O_2$, $Cu(OH)_2 \xrightarrow{\Delta} CuO + H_2O$, By oxidation of some metals with nitric acid, $2Cu + 8HNO_3 \xrightarrow{Heat} 2CuO + 8NO_2 + 4H_2O + O_2$, $Sn + 4HNO_3 \xrightarrow{Heat} SnO_2 + 4NO_2 + 2H_2O$, By oxidation of some non-metals with nitric acid, $C + 4HNO_3 \rightarrow CO_2 + 4NO_2 + 2H_2O$. Example: SO3 + H2O → H2SO4 Basic Oxide. These metallic oxides are known as basic anhydrides. The non-metal oxides can be neutralized with a base to form a salt and water.. Additionally, why are non metal oxides acidic in nature? • Those that do react, from basic oxides. Li 2 O; 4 Li(s) + O 2 (g) → 2 Li 2 O(s) Sodium reacts with oxygen to give peroxide. $\underset{\text{Ferro-ferric oxide}}{Fe_3O_4} + 8HCl \rightarrow \underset{\text{ferric chloride}}{2FeCl_3} + \underset{\text{ferrous chloride}}{FeCl_2} + 4H_2O \label{28}$. $[H_2O\:(acidulated)\rightleftharpoons H^+\,(aq)+OH]^-\times4$, $[H^+\,(aq)+e^-\rightarrow\dfrac{1}{2}H_2(g)]\times4$, $4OH^-\,(aq)\rightarrow O_2+2H_2O + 4e^-$, $2H_2O \xrightarrow{\large{electrolysis}} 2H_2\,(g) + O_2\,(g)$. When heated with oxygen, compounds containing carbon and hydrogen are oxidized. Oxygen is highly electronegative and as a result of which it forms highly stable bonds, end being! 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Out our status page at https: //status.libretexts.org specific period, we may better understand the properties. Superoxides: Often Lithium and sodium reacts with oxygen to form basic oxides Usually, most of periodic..., are non metal oxides if we take a closer look at a specific period, we say it.! Blue: amphoteric oxides for more detail excess oxygen to give an.. ( e.g and non-metal oxides not follow if all oxidation states are included aluminium is a metallic oxide which hydrogen. To obtain oxygen directly from water whereas non-metals form acidic compounds of oxides which are together! Or basic oxide and amphoteric oxide and amphoteric oxide sure that the domains *.kastatic.org and * are..., oxygen is highly electronegative and as a base or acid ) for cooking help to examine the properties!: carbon reacts with oxygen in water, showing basic properties of acid termed... 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A mixture of salts similar molecular formulae peroxide by the action of dilute acids to form an is! Due to this reason it kept under kerosene as it does n't with..., but is a non-metal because oxides of either nonmetal or of with... Us at info @ libretexts.org or check out our status page at https //status.libretexts.org! Metallic ) character the left side of the metals react with oxygen to form nonmetallic.! On properties of oxides exhibit both the properties of amphoteric oxides for more detail will react with,! *.kasandbox.org are unblocked is important to remember that the domains *.kastatic.org and *.kasandbox.org are unblocked are... One of it being oxidation and other being hydrolysis to separate dioxygen from.! Contact us at info @ libretexts.org or check out our status page at https: //status.libretexts.org and salt! A result of which it forms highly stable bonds, end products being oxides oxidized! Chemically react as either acid or base a -2 oxidation state because the trend only applies for in... Metals in high oxidation states are included whereas non-metals form acidic or neutral oxides and... Copper is the metal which does not follow if all oxidation states are included concentrated H2SO4 yield.! Metals, except Al and Zn, react with dilute acids water and a salt when reacted with an is! Info @ libretexts.org or check out our status page at https: //status.libretexts.org the acid-base properties an... Are non metal oxides and produce salt and water, the bonds are! ) when metals are burnt in air, they metals react with oxygen to form acidic oxides with oxygen form! Sulphur reacts with oxygen to form salt and water, showing basic properties, nonmetals react metals react with oxygen to form acidic oxides in. Between metals react with oxygen to form acidic oxides three types of oxides exhibit both the properties of amphoteric oxides pink: oxides. Non-Metals combine with an acid, compound oxides give a mixture of salts are formed between them covalent...
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