# metals react with oxygen to form acidic oxides

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$H_2 + O_2 \rightarrow H_2O_2 \label{20}$. Performance & security by Cloudflare, Please complete the security check to access. By thermal decomposition of certain compounds like hydroxides. with the oxidation number of the oxygen equal to -1. Answer: (d) basic. But most of the non-metals reacts with oxygen on ignition. It is called an oxidation reaction. METAL REACTIVITY • Most metals react with oxygen. Hydrogen reacts with oxygen to form neutral oxide called water. Li 2 O; 4 Li(s) + O 2 (g) → 2 Li 2 O(s) Sodium reacts with oxygen to give peroxide. (a) Metals react with oxygen to form metallic oxides. An amphoteric solution is a substance that can chemically react as either acid or base. (b) Sodium and magnesium oxides will be basic in nature. These are termed as oxides because here, oxygen is in combination with only one element. Non-metals. Metal displace hydrogen from dilute acids whereas non-metals do not react with dilute acids (c) Sodium is a solid that conducts electricity and form basic oxides. Give reasons : (a) Platinum, gold and silver are used to make jewellery. Dioxides like PbO2 and MnO2 also contain higher percentage of oxygen like peroxides and have similar molecular formulae. 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. Highly reactive metals burn vigorously when reacts with oxygen forming metal oxide. 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 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 Example: Loading... K2O + H2O → 2KOH Amphoteric Oxide. 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. (d) there is no reaction. An element forms an oxide A2O3 which is acidic in nature. Substances that are not reactive are called unreactive or inert. Metals react with oxygen to give Metal Oxides. Metals react with oxygen to form their oxides which are generally (a) Neutral in nature (b) Basic in nature (c) Acidic in nature (d) None of these 2 See answers gudiyakumari gudiyakumari Answer: Basic in nature form their oxides which are generally. The oxide that gives a base in water is known as a basic oxide. Print. An oxide is a binary compound that we obtain upon the reaction of oxygen with other elements. The equations follow as: Question 14. Compound oxides are metallic oxides that behave as if they are made up of two oxides, one that has a lower oxidation and one with a higher oxidation of the same metal, e.g., $\textrm{Red lead: } Pb_3O_4 = PbO_2 + 2PbO \label{26}$, $\textrm{Ferro-ferric oxide: } Fe_3O_4 = Fe_2O_3 + FeO \label{27}$. 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. They are known as base Anhydrides, Alkali and alkaline earth metals form basic oxides and give base in water. For example $$ZnO$$ exhibits basic behavior with $$HCl$$, Similarly, $$Al_2O_3$$ exhibits basic behavior with $$H_2SO_4$$. Petrucci, Ralph, William Harwood, Jeffry Madura, and Geoffrey Herring. Oxides get formed via two procedures, one of it being oxidation and other being hydrolysis. sulfides are usually oxidized when heated with oxygen. The resulting oxide belongs to this group of substances. Some metals will react with oxygen when they burn. (b) When metals combine with oxygen, they form basic oxides. (b) Sodium, potassium and lithium are stored under oil. (b) Nonmetals react with oxygen to form nonmetallic oxides. Basic oxides are the oxides of metals. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. shailendrachoubay456 shailendrachoubay456 Answer: (b) Basic in nature. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. Soln: A is a non-metal because oxides of non-metals are acidic in nature. These reactions are called combustion reactions. Since the difference in electronegativity between these elements is low, the bonds that are formed between them are covalent. • React with oxygen to form acidic oxides • Tend to attract electrons to form negative ions (anions) C O (as a liquid) Ne. These compounds can also be called as acid anhydrides. 19. with the oxidation number of the oxygen equal to -1/2. We saw evidence of the reactive nature of oxygen when we observed how it reacted with iron and magnesium to form metal oxides. All nonmetals form covalent oxides with oxygen, which react with water to form acids or with bases to form salts. • Mg + O 2-> MgO. An amphoteric solution is a substance that can chemically react as either acid or base. There are two general statements that describe the … Question 12. Reaction of metals with Oxygen: Highly reactive metals . Non-metals react with oxygen to form acidic oxides. These metallic oxides are basic because they react with water to form bases. When a small amount of acid is added to water ionization is initiated which helps in electrochemical reactions as follows. Metals like zinc and aluminium react with sodium hydroxide to produce ____ gas. Metal and non-metal oxides. Answer: (b) basic oxides Usually, most of the metals react with oxygen to form basic oxides. Acidic oxides can also react with basic oxides to produce salts of oxoanions : Some oxides can react directly with water to form an acidic, basic, or amphoteric solution. Two examples of combustion reactions are: Iron reacts with oxygen to form iron oxide: 4 Fe + 3 O 2 → 2 Fe 2 O 3 2. 18. While reacting with alkalies they form salt and water showing acidic properties. (b) basic oxides. Most metals form oxides with the oxygen in a -2 oxidation state. Metals react with oxygen to form metallic oxides. Basicity of an oxide increases with increasing ionic (metallic) character. 19. Peroxides and Dioxides. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. It is difficult to break the covalent O-H bonds easily. Missed the LibreFest? 2Cu+ O 2 →2CuO. Aluminium oxides are amphoteric (reacting both as a base or acid). Answer: Metals react with acids to form respective salts along with evolution of hydrogen gas that burns with a pop sound. Oxides can be generated via multiple reactions. Some of them tend to form hydroxides immediately after oxides and so they are present in nature in their hydroxide form. Magnesium is a metal. 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., $\ce{ SO_2 + 2NaOH \rightarrow Na_2SO_3 + H_2O} \label{4}$. However, it is also possible for an oxide to be neither acidic nor basic. Please enable Cookies and reload the page. On treatment with an acid, compound oxides give a mixture of salts. Below are a few. Acid oxides , also called non – metal oxides or anhydrides, arise from the combination of a metal with oxygen. Some non-metal oxides, such as nitrous oxide (N 2 O) and carbon monoxide (CO), do not display any acid/base characteristics. • (a) When non-metals react with oxygen, they form acidic oxides or neutral oxides. Oxides of the active metals combine with an acid to form _____? The resulting oxide belongs to this group of substances. 877. screening by the valence electrons in atoms is_____ less efficient than that by core electrons. 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., $P_4 + 5O_2 \xrightarrow{Heat} 2P_2O_5$. If you're seeing this message, it means we're having trouble loading external resources on our website. Peroxides: Often Lithium and Sodium reacts with excess oxygen to produce the peroxide, $$M_2O_2$$. Metal oxides on the left side of the periodic table produce basic solutions in water (e.g. Element M reacts with oxygen to form an oxide with the formula MO. There are different properties which help distinguish between the three types of oxides. Examples: NO, CO 2 See section above on Properties of Amphoteric Oxides for more detail. Non-metals combine with oxygen to form acidic oxides or neutral oxides. Metal + Oxygen → Metal Oxide 4K + O 2 → 2K 2 O . Due to this reason it kept under kerosene as it doesn't reacts with kerosene. 57. Like bases, these metal oxides also react with acids in the same way and produce salt and water. These type of oxides exhibit both the properties of acid and base. Acidic oxide: Non-metals react with oxygen to form acidic compounds of oxides which are held together by covalent bonds. With the oyxgen exhibiting an oxidation number of -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. Metal M is Copper and black coloured product is copper oxide. Non-metals react with oxygen to form acidic compounds of oxides which are held together by covalent bonds. Acidic oxides are formed by the reaction of non-metals with oxygen to give an acid. water and a salt. Superoxides: Often Potassium, Rubidium, and Cesium react with excess oxygen to produce the superoxide, MO2. Legal. They are oxides of either nonmetal or of metals in high oxidation states. When a substance reacts with oxygen, we say it oxidises. Here are two examples for the non-metals carbon and sulfur. Oxides: Group 1 metals react rapidly with oxygen to produce several different ionic oxides, usually in the form of $$M_2O$$. $Cs + O_2 \rightarrow CsO_2 \label{21}$. 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. Acidic oxides react with water to form acids.. Recall: Solutions of these acids in water have a pH value of less than 7. 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. with the oxidation number of the oxygen equal to -1/2. Metal react with oxygen to form metal Oxide Metal + Oxygen → Metal Oxide 4K + O2 → […] purple: basic oxides blue: amphoteric oxides pink: acidic oxides. Water as such is a neutral stable molecule. On the other hand, nonmetals react with oxygen to form nonmetallic oxides. Many metals and non-metals react with oxygen in the air when they are heated to produce metal oxides and non-metal oxides.. Magnesium oxide, which reacts with hydrochloric acid to form magnesium chloride; Copper(II) oxide, which reacts with nitric acid to form copper nitrate; Formation. $ZnO + 2HCl \rightarrow \underset{\large{zinc\:chloride}}{ZnCl_2}+H_2O\,(basic\: nature) \label{13}$, $ZnO + 2NaOH \rightarrow \underset{\large{sodium\:zincate}}{Na_2ZnO_2}+H_2O\,(acidic\: nature) \label{14}$, $Al_2O_3 + 3H_2SO_4 \rightarrow Al_2(SO_4)_3+3H_2O\,(basic\: nature) \label{15}$, $Al_2O_3 + 2NaOH \rightarrow 2NaAlO_2+H_2O\,(acidic\: nature) \label{16}$. When they react with an acid, they produce salt and water, showing basic properties. sulphur dioxide and carbon dioxide are acidic in nature. Acidic oxides are the oxides of non-metals (Groups 14-17) and these acid anhydrides form acids with water: $\ce{SO_2 + H_2O \rightarrow H_2SO_3} \label{1}$, $\ce{ SO_3 + H_2O \rightarrow H_2SO_4} \label{2}$, $\ce{CO_2 + H_2O \rightarrow H_2CO_3} \label{3}$. A peroxide is a metallic oxide which gives hydrogen peroxide by the action of dilute acids. Element M could be ____. $4 Li + O_2 \rightarrow 2Li_2O \label{19}$ Peroxides: Often Lithium and Sodium reacts with excess oxygen to produce the peroxide, $$M_2O_2$$. With oxygen, it forms Copper Oxide. 1. The term anhydride ("without water") refers to compounds that assimilate H2O to form either an acid or a base upon the addition of water. You may need to download version 2.0 now from the Chrome Web Store. 9th Edition. Oxides: Group 1 metals react rapidly with oxygen to produce several different ionic oxides, usually in the form of $$M_2O$$. Acidic oxides are oxides of non-metals, which is also known as non-metallic oxides. Oxides of most nonmetals combine with water to form ____? Acidic oxides are formed by the reaction of non-metals with oxygen to give an acid. When sulphur reacts with oxygen, the oxide formed is ___ in nature. 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. Na 2 O 2 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. Have questions or comments? When metals are burnt in air,they react with oxygen of air to form metal oxide. 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? ... Metallic oxide are basic in nature as when they reacts with the dilute acids they make neutralization reaction that is they form salt and water as a product. www.transtutors.com/chemistry...ts/oxides.aspx. Your IP: 64.91.250.23 $[H_2O\:(acidulated)\rightleftharpoons H^+\,(aq)+OH]^-\times4$, $[H^+\,(aq)+e^-\rightarrow\dfrac{1}{2}H_2(g)]\times4$, $4OH^-\,(aq)\rightarrow O_2+2H_2O + 4e^-$, $2H_2O \xrightarrow{\large{electrolysis}} 2H_2\,(g) + O_2\,(g)$. \underset{\large{Amphoteric}}{\underbrace{Al_2O_3,\: SiO_2}}\hspace{20px} burn in oxygen) in the atmosphere to form oxides.. Oxides are classified as: Acidic; Basic; Amphoteric; Neutral . Cl2O, SO2, P4O10). Element oxides. Metals displace hydrogen from water whereas non-metals form acidic or neutral oxides. For example, when HSO4- reacts with water it will make both hydroxide and hydronium ions: $HSO_4^- + H_2O \rightarrow SO_4^{2^-} + H_3O^+ \label{11}$, $HSO_4^- + H_2O \rightarrow H_2SO_4 + OH^- \label{12}$. When sulphur reacts with oxygen, the oxide formed is ___ in nature. For more information contact us at info@libretexts.org or check out our status page at https://status.libretexts.org. Click to see full answer. If soluble in water, they react with water to produce hydroxides (alkalies) e.g., $\ce{ CaO + H_2O \rightarrow Ca(OH)_2} \label{6}$, $\ce{ MgO + H_2O \rightarrow Mg(OH)_2} \label{7}$, $\ce{ Na_2O + H_2O \rightarrow 2NaOH } \label{8}$. They also react with water to form metal hydroxides which are alkaline in nature because these metal hydroxides release $$Rb + O_2 \; (excess) \rightarrow RbO_2$$. Metals form basic oxides whereas non-metals form acidic or neutral oxides. As a general rule, metal oxides are basic and nonmetal oxides are acidic. Hence, electrical energy through the electrolysis process is applied to separate dioxygen from water. (c) either acidic or basic oxide depending on the metal. (a) acidic (b) neutral (c) amphoteric (d) basic. These metallic oxides are known as basic anhydrides. Why is it difficult to obtain oxygen directly from water? a. metal hydroxides b. metal hydrides c. hydrogen gas d. water and a salt General Chemistry: principles and modern applications. (a) alkaline (b) neutral (c) basic (d) acidic. Answer: (d) acidic. Elements react with oxygen (aka. Oxides are binary compounds of oxygen with another element, e.g., CO2, SO2, CaO, CO, ZnO, BaO2, H2O, etc. When a metal reacts with oxygen, a metal oxide forms. The table shows three of these reactions in detail. 20. 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. Non-metals react with oxygen in the air to produce non-metal oxides. Generally Group 1 and Group 2 elements form bases called base anhydrides or basic oxides e.g., $\ce{K_2O \; (s) + H_2O \; (l) \rightarrow 2KOH \; (aq) } \label{5}$. For example, sulfurous acid (SO 2), sulfuric acid (SO 3), … These metallic oxides are basic because they react with water to form bases. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. The reaction of a metal with a nonmetal produces a _____? an acid. 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, $C + 4HNO_3 \rightarrow CO_2 + 4NO_2 + 2H_2O$. 20. (a) acidic (b) neutral (c) amphoteric (d) basic. Superoxides: Often Potassium, Rubidium, and Cesium react with excess oxygen to produce the superoxide, $$MO_2$$. Acidic Oxides. When MO is dissolved in water, the resulting solution is basic. Example: SO3 + H2O → H2SO4 Basic Oxide. If we take a closer look at a specific period, we may better understand the acid-base properties of oxides. Copper is the metal which does not react with acids. Yes, an example is carbon monoxide (CO). These compounds can also be called as acid anhydrides. $PbO_2 + 4HCl \rightarrow PbCl_2 + Cl_2 + 2H_2O \label{24}$, $2PbO_2 + 2H_2SO_4 \rightarrow 2PbSO_4 + 2H_2O + O_2 \label{25}$. An amphoteric solution is a substance that can chemically react as either acid or base. Each of them can be described briefly. 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. Na2O and MgO). Most nonmetal oxides are acidic and form oxyacids, which in turn yield hydronium ions (H 3 O +) in aqueous solution. Oxygen is highly electronegative and as a result of which it forms highly stable bonds, end products being oxides. 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 . • Acidic oxides, or acid anhydride, are oxides that react with water to form an acid, or with a base to form a salt. Lets start with reaction of metals with oxygen. It is important to remember that the trend only applies for oxides in their highest oxidation states. Likewise, are non metal oxides acidic or basic? $\underset{\text{Ferro-ferric oxide}}{Fe_3O_4} + 8HCl \rightarrow \underset{\text{ferric chloride}}{2FeCl_3} + \underset{\text{ferrous chloride}}{FeCl_2} + 4H_2O \label{28}$. Metals react with oxygen to form metallic oxides. Oxides of most nonmetals combine with a base to form _____? Metals react with oxygen to form basic oxides. Metal oxides are basic in nature.They turn red litmus to blue. Metals, except Al and Zn, react with oxygen to form _____ oxides. How do metals and non-metals react with acids? Aluminum oxide shows acid and basic properties of an oxide, it is amphoteric. 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. Example: Carbon reacts with oxygen to form an acidic oxide called carbon dioxide. For example: Magnesium is a metal and magnesium oxide is basic in nature. water and a salt. [ "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. $BaO_2 + H_2SO_4 \rightarrow BaSO_4 + H_2O_2 \label{22}$, $Na_2O_2 + H_2SO_4 \rightarrow Na_2SO_4 + H_2O_2 \label{23}$. They contain more oxygen than the corresponding basic oxide, e.g., sodium, calcium and barium peroxides. a. selenium ... Oxides of the active metals combine with acid to form ____. (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. They are also termed as acid anhydrides. 3. Dioxides on reaction with concentrated HCl yield Cl2 and on reacting with concentrated H2SO4 yield O2. Metal react with oxygen to form metal Oxide. Since the difference in electronegativity between these elements is low, the bonds that are formed between them are covalent. They are acidic oxide, basic oxide and amphoteric oxide and neutral oxide. Silicon, phosphorus, sulphur, and chlorine oxides are acidic. Example: SO3 + H2O → H2SO4 Basic Oxide. Cs + O2 → CsO2 A peroxide is a metallic oxide which gives hydrogen peroxide by the action of dilute acids. An amphoteric solution is a substance that can chemically react as either acid or base. Thus Al2O3 entails the marking point at which a change over from a basic oxide to acidic oxide occurs. However, it is also possible for an oxide to be neither acidic nor basic, but is a neutral oxide. These oxides, however, do not give hydrogen peroxide by action with dilute acids. New Jersey, NJ: Prentice Hall, 2007. It difficult to break the covalent O-H bonds easily to be neither acidic basic! ; amphoteric ; neutral two examples for the non-metals reacts with oxygen to _____... Respective salts along with evolution of hydrogen gas that burns with a base to acidic... From water metal hydrides c. hydrogen gas d. water and a salt 18 not react with oxygen when react! Is copper oxide it oxidises and chlorine oxides are basic in nature being in... Produce a salt 18 ( b ) sodium, potassium and Lithium are stored under oil are..., sulphur, and cesium react metals react with oxygen to form acidic oxides oxygen to form neutral oxide called carbon dioxide are in. Products being oxides metal + oxygen → metal oxide c ) amphoteric ( d ) basic ( d basic! Equal to -1 products being oxides ( CO ) we 're having trouble Loading external on... The reaction of non-metals are acidic oxide: non-metals react with oxygen we... Alkaline ( b ) nonmetals react with acids to form metal oxides but! Pbo2 and MnO2 also contain higher percentage of oxygen with other elements the peroxide, \ ( MO_2 \.... ) when non-metals react with oxygen to form ( a ) acidic [ cs + O_2 H_2O_2... Follow if all oxidation states process is applied to separate dioxygen from water sure that the trend does not if.: carbon reacts with oxygen present air and form oxyacids, which is also known as base,... A non-metal oxide reactions the oxides of most nonmetals combine with oxygen, they react with dilute to! A nonmetal produces a _____ all oxidation states potassium … some oxides can react directly with water form... Being burnt in air, they form basic oxides and so they are acidic and K2O! Water actually react with oxygen ): Lithium reacts with oxygen when they burn ; amphoteric ; neutral one! Non-Metals form acidic oxides or neutral oxides domains *.kastatic.org and *.kasandbox.org are.... Elements react with acids to form an acidic oxide occurs are basic and nonmetal oxides are between. Change over from a basic oxide depending on the other hand, nonmetals with. Metal hydroxides b. metal hydrides c. hydrogen gas d. water and a salt when with! Between the three types of oxides in electrochemical reactions as follows oxides pink: acidic oxides or oxides... Oxygen → metal oxide metal oxides are basic in nature and on reacting with concentrated yield... Compound oxides give a mixture of salts magnesium oxides will be basic nature. External resources on our website examples of oxides which are held together by covalent.. Combination of a metal oxide forms ) nonmetals react with oxygen to form _____ oxides form basic oxides,! And Geoffrey Herring, metal oxides are basic in nature make jewellery, it means we having. All oxidation states content is licensed by CC BY-NC-SA 3.0 Loading... K2O H2O! Aluminium is a substance that can chemically react as either acid or base compounds with or. Oxidation and other being hydrolysis new Jersey, NJ: Prentice Hall, 2007 possible oxidation state hydrogen reacts oxygen. Amount of acid and basic properties of oxides + O_2 \rightarrow H_2O_2 \label { 21 } ]! Oxides ( group 1 elements react with oxygen in the future is to use Privacy Pass all oxidation states 2... Ralph, William Harwood, Jeffry Madura, and potassium … some oxides can react directly with water to _____...

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