Write molecular, ionic, and net ionic equations: HIO_2(aq) + Ba(OH)_2(aq) \rightarrow, Determine the balanced molecular, ionic, and net ionic equations for the following reaction: Cobalt(III) nitrate and sodium carbonate, Write the ionic equation and net ionic equation for the following. The molar mass is 291.72 g mol-1. First write the standard chemical equation of acetic acid reacting with sodium hydroxide to form water and sodium acetate. $$\ce{3Na2CO3+ 2FeCl3+ H2O 2FeO(OH) + 6NaCl + 3CO2}$$, Sodium carbonate react with iron(III) chloride and water to produce :D. The total number of stars for this article is: FeCl2 + Na2CO3 = FeCO3 + 2NaCl | Chemical Equation. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. <> In this case, the reagent in shortest supply is the limiting reagent. Lead (II) Nitrate + Barium chloride a. molecular: b. ionic: c. net ionic: 2. Sodium Carbonate and Magnesium Nitrate 4. Magnesium nitrate and sodium chromate Molecular Equation: Complete Ionic Equation: Net Ionic Equation: Particulate drawing: 8. The white product of the reaction was then poured into the funnel and left for another few minutes to filter. Interesting Information Only Few People Knows, This system is delivered to you by Vietnamese students and teachers Createyouraccount. Write the molecular and net ionic equations for Ba2+ reacting with Na2SO4(aq). Why is sending so few tanks to Ukraine considered significant? Why are there two different pronunciations for the word Tee. Lead (II) Nitrate + Cobalt (II) Sulfate a. molecular: b. ionic: c. net ionic: 4. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. %L*\K|/oG-~oz|F|b:~Q/3q|U3er!$e$iJe2qd=4Cf}N\/D|75hr16/d4Cjx!B 6 What does sodium chloride and NaOH make? The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Write the balanced molecular equation, complete ionic equation, and net ionic equation for the reaction that occurs between aqueous solutions of cobalt(II) sulfate and sodium carbonate. If no reaction occurs, so indicate. If the water evaporates away, the Na+ and the Cl- atoms will be able to form ionic bonds again, turning back into solid NaCl, table salt. How do I ask homework questions on Chemistry Stack Exchange? It is a unstable compound. stream a. Write the balanced molecular, ionic, and net ionic equations and specify reaction type. Is it realistic for an actor to act in four movies in six months? What type of reaction is iron III chloride and sodium carbonate? Overall Equation: Mg (NO 3) 2 ( aq) + CaCl 2 ( aq) -> Ca (NO 3) 2 ( aq) + MgCl 2 ( aq) Total Ionic Equation: Mg 2+ (aq) + 2 NO 3- (aq) + Ca 2+ (aq) + 2 Cl - (aq) --> Ca 2+(aq) + 2 NO 3- (aq) + Mg 2+(aq) + 2 Cl - (aq) Net Ionic Equation: No Reaction 5. potassium sulfate and barium chloride Overall Equation: The molecular equation is as follows: I assume you have that. Write the net ionic equations for the following: (a) Ammonium chloride + sodium hydroxide to (b) Sodium acetate + hydrochloride acid to (c) Sodium sulfide + hydrochloric acid to (d) Lead nitrate + Sodium sulfide to. Cross out the spectator ions on both sides of complete ionic equation.5. In this reaction, the copper carbonate is converted into copper chloride, carbon dioxide, and water. Write the chemical equation, the ionic equation and the net ionic equation where there is a precipitation reaction in each of the following reactions:strontium chloride and sodium carbonate SrCl2 Na2CO3 Sr2+(aq)+ Cl2-(aq)+ Na+(aq)+CO32-(aq) unbalanced. However, you may visit "Cookie Settings" to provide a controlled consent. The answer of the question above is absolutely yes. 2. Theyfound a compound with the empirical, The golden dart frog is considered the most poisonous vertebrate in the world, with pufferfish close behind in second place. Underline all solids. Donating to our cause, you are not only help supporting this website going on, but also This type of reaction is called a precipitation reaction, and the solid produced in the reaction is known as the precipitate.You can predict whether a precipitate will form using a list of solubility rules such as those found in the table below. 1 Does sodium carbonate react with sodium chloride? Can banks make loans out of their required reserves? What does Shakespeare mean when he says Coral is far more red than her lips red? First, we balance the molecular equation. The equation would then be: CoCl2(H2O)6 + Na2(CO3) CoCO3 + 2. The reaction between magnesium. We then expand the molecules present in an aqueous state and that allows us to see the ions that are present on both sides called spectator ions. Conclusion Follow- Up Questions 1. What are the chemical and physical characteristic of FeCO3 (sodium carbonate)? What is the chemical equation and net ionic equation for Sodium Carbonate and Sodium Chloride? That isn't going to have a precipitation. FERROUS CARBONATE Iron(II) carbonate 563-71-3 Iron(2+) carbonate Iron II carbonate More, CID 23925 (FE (III) Ion) CID 767 (Carbonic acid). You can ask a new question or browse more Chemistry questions. Those are Na^+ and (NO3)^-. Provide the molecular, ionic, and net ionic equations of the following: Copper (II) sulfate + Potassium phosphate. Be sure to indicate oxidation states and the precipitate. Calcium chloride produces heat exothermic when it dissolves in water, while sodium bicarbonate absorbs heat endothermic as it dissolves. Write the balanced chemical equation of Potassium metal that reacts with water. I assume those are SOLUTIONS of ferric nitrate and sodium carbonate. 1. Write the balanced molecular equation, total ionic equation, and net ionic equation for the reaction that occurs between sodium carbonate and lithium sulfate. Write the balanced net ionic equation for the reaction that takes place when aqueous solutions of sodium carbonate and iron(III) chloride are mixed. A solution of iron(III)chloride is mixed with a solution of sodium hydroxide and reacts to yield solid iron (III) hydroxide and aqueous sodium chloride. What are the chemical and physical characteristic of NaCl (sodium carbonate)? What happens when iron III chloride reacts with sodium carbonate? Reaction of citric acid and calcium chloride, Iron-II to iron-III change in complex formation, Displacement of salts due to higher solubility, Magnesium vs calcium vs barium ions from these 3 tests. When sodium metal reacts with iron (II) chloride, iron metal and sodium chloride are formed. The two reactants were mixed in another 250ml beaker. Write the molecular, ionic and net ionic equation for the following: 1) Silver nitrate + sodium Chloride 2) lead (ii) nitrate + potassium iodide 3) Sodium carbonate + hydrochloric acid 4) Sodium Chloride + calcium nitrate 5) Zinc + hydrochloric acid. What are the chemical reactions that have Na2CO3 (sodium carbonate) as reactant? Write the net ionic equation for the precipitation of barium carbonate from aqueous solution: Write the balanced 1) molecular 2)total ionic 3) net ionic reactions (where appropriate) for the following: lead nitrate(aq) + sodium iodide(aq) -->. Magnesium nitrate and sodium chromate Molecular Equation: Complete Ionic Equation: Net Ionic Equation: Particulate drawing: 9. 2 Na(s) + Fella (s) Fe (s) + 2Naci. Molecular: CaS(aq) + Pb(NO 3) 2 (aq) Ca(NO 3) 2 (aq) + PbS(s) Net ionic: S 2-(aq) + Pb 2+ (aq) PbS(s) 4. copper(II) sulfate . Chapter 4 molarity_&_dilution_worksheet.docx, Universal Technical Institute, Sacramento, University of North Carolina, Chapel Hill, The major product of the following reaction is A B C D Ans A Explanation 30 12, DBF_G1_Cho Joo Ming-20PBD04545-Individual Assignment..docx, 18 19 Answer They are both minerals of alumina 19 20 What is clay used in making, Rule 7 Whenever possible have two or more persons grade each answer Although, The expenses for the services of these inspectors include salary and living, EVALUATE Based on the cases presented above answer the following questions 1 How, Which basic assumption may not be followed when a firm in bankruptcy reports, Question 2 8 Questio n When using the BEAM style of evaluation which of the, classe como se apresenta a seguir Para calcular estimativas das probabiliaddes p, substitutes for the product 4 threat of buyers growing bargaining power and 5, 2 Loss after delivery If the loss occurred after the delivery of the thing, the findings you discover that the way in which you gathered data inhibited your, Thank you sashkriti now I would like explain the evolution of performance management.docx, Role Strain and the Transition to Adulthood .pdf, psyc2007.fall.2022.lecture.12.language.i.pdf. Provide the molecular, ionic, and net ionic equations of the following: Sodium Acetate + Hydrochloric Acid. But opting out of some of these cookies may affect your browsing experience. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. That is. What is the net ionic equation for the reaction of aqueous sodium carbonate with aqueous iron(III) chloride? Site Maintenance - Friday, January 20, 2023 02:00 - 05:00 UTC (Thursday, Jan What are the products of a reaction between copper sulfate and sodium bicarbonate? FeCl 3 is either iron (III) chloride or ferric chloride (answers will vary). Precipitation reaction occurs when 2 out of the 4 ions of the reactant compounds can combine and produce an insoluble compound. This reaction will have a limiting reactant and an excess reactant since its difficult to measure and mix the same amount for the two reactants. Write the balanced chemical equation, complete ionic equation, and net ionic equation for the reaction between aqueous solutions of sodium carbonate and calcium chloride. The best answers are voted up and rise to the top, Not the answer you're looking for? 1 only Click the card to flip Flashcards Learn Test Match Created by sydwelch15 The cookie is used to store the user consent for the cookies in the category "Analytics". Yes, iron(III) chloride reacts with sodium carbonate in aqueous solution to produce iron(III) hydroxide which forms precipitate. This reaction can be represented by the following equation: CuCO3 + 2HCl -> CuCl2 + CO2 + H2O. For the calcium carbonate precipitation reaction, the net ionic equation looks like this: Ca2+ (aq) + (CO3)2- (aq) -> CaCO2 (s) The spectator ions are not represented because they do not take part in . Write the net ionic equation that occurs when aqueous sodium carbonate solution is added to aqueous calcium chloride solution. Writing ionic equation lessons examples and solutions what is the for reaction between calcium carbonate hydrochloric acid quora answered 1 select net bartleby formed when chloride sodium are mixed solved 2 write balanced molecular chegg com solution added into sulp . But when mixed, they react in a double replacement reaction to form a precipitate ( insoluble solid resulting from mixing two solutions). Experts are tested by Chegg as specialists in their subject area. Iron (III) Nitrate reacts with sodium carbonate to form a precipitate. What is the mass percent of carbon in this compound? Name the cation and then the anion but don't use numerical prefixes. What's the term for TV series / movies that focus on a family as well as their individual lives? Explain. Concept: A precipitation will result from a double replacement reaction among Sodium carbonate and iron chloride. {/eq} and sodium chloride {eq}\rm NaCl(aq) If no reaction is expected to take place, explain why not. Write the molecular equation, balanced equation, total ionic equation, and net ionic equation for the following: Sodium carbonate and hydrochloric acid. It does not store any personal data. Sodium carbonate and hydrochloric acid produces sodium chloride, carbon dioxide and water Molecular Equation: Complete Ionic Equation: Net Ionic Equation: 8. Co(NO_3)_2(aq) + NaI (aq), Find the molecular, ionic, and net ionic equation for the following. 100% (1 rating) Previous questionNext question COMPANY About Chegg A: Iridium (III) hydrogen sulfite contains: Iridium (III) ion=Ir3+ hydrogen sulfite ion= HSO3-. Provide the molecular, ionic, and net ionic equations of the following: Nickel (II) chloride + Copper (II) sulfate. This cookie is set by GDPR Cookie Consent plugin. endobj Sodium carbonate and Iron Il chloride Molecular Equation: Na2CO3(aq) + FeCl2(aq). What are the chemical reactions that have NaCl (sodium chloride) as product? What happens when ferric chloride reacts with sodium carbonate? 1 only b. Skeletal Equation: the cation name followed by the anion name. Write the balanced molecular equation, total ionic equation, net ionic equation, and type of reaction for the following reaction: iron (IIl) sulfate and sodium chloride. )DOt,5smLLk:1d3\zw8I Are the models of infinitesimal analysis (philosophically) circular? Underline all solids. Write the net ionic equation for the precipitation of iron(II) carbonate from aqueous solution: Write the net ionic equations for: 1M Na2CO3 and Ba2+ 1M Na2CO3 and Ca2+ 1M Na2CO3 and Mg2+ 1M Na2CO3 and Sr2+ 1M Na2CO3 and M2+. Copyright 2023 MassInitiative | All rights reserved. Aqueous solutions of calcium chloride and sodium carbonate. Balancing Strategies: This is a double replacement displacement reaction. $$\ce{2FeCl3+ 3Na2CO3+ 3H2O 2Fe(OH)3+ 6NaCl + 3CO2}$$, Iron(III) chloride react with sodium carbonate and water to produce ( chemiday 2). We review their content and use your feedback to keep the quality high. Does cacl2 and na2co3 form a precipitate? Indefinite article before noun starting with "the". Honors Chemistry Name_____ Period_____ Net Ionic Equation Worksheet READ THIS: When two solutions of ionic compounds are mixed, a solid may form. When sodium metal reacts with iron II chloride iron metal and sodium chloride solid are formed? Find the molecular, ionic, and net ionic equation for the following. These cookies will be stored in your browser only with your consent. Na2CO3, also known as sodium carbonate, is a white, crystalline solid that is commonly used as a water softener and a cleaning agent. Catalysts have no effect on equilibrium situations. endobj Sodium nitrate reacts with hydrochloric acid to produce nitrogen monoxide. You will get a solid calcium carbonate and it is precipitated. Fe(NO3)3(aq) + Na2CO3(aq) ==> Fe2(CO3)3(s) + NaNO3(aq). Q: Complete and balance: Manganese Sulfate + Aluminum Phosphate. molecular: write the balanced molecular equation, the complete ionic equation and the net ionic equation. {/eq} and sodium carbonate {eq}\rm Na_2CO_3(aq) What is the product of CaCl2? 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. Sodium chloride is insoluble in water. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How do I write out the molecular and net ionic equations of these products? oli Q (yqTT This website uses cookies to improve your experience while you navigate through the website. 3 Na (aq) + Fe (aq) NasFe (s) b. You also have the option to opt-out of these cookies. Attaching Ethernet interface to an SoC which has no embedded Ethernet circuit, LM317 voltage regulator to replace AA battery. Pufferfish produce a compound known as tetrodotoxin (C11H17N3O8) that is. Write the molecular equation, the ionic equation, and the net ionic equation for the reaction between copper(II) sulfate and sodium carbonate. Give the ionic and net ionic equation for sodium carbonate and potassium chloride. 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. Students were asked to determine a compound that could be combined with an iron (III) chloride ($\ce{FeCl3}$) solution to react and form a precipitate. Write a balanced molecular, total ionic and net ionic equations for the following reaction: potassium chloride + iron (III) nitrate? What is the molecular equation for sodium carbonate and iron II chloride? Sodium carbonate and Iron II chloride Chemical Equation: Complete Ionic Equation: Net Ionic Equation: Expert Answer Who are the experts? In this reaction, FeCO3 will be insoluble and will be a precipitate (solid) and fall to the bottom of the test tube. 1 What is the molecular equation for sodium carbonate and iron II chloride? Skeletal Equation: Ionic Equation: (assume all ions are aqueous, dissociated free ions) NET Ionic Equation: If I added sodium carbonate to calcium nitrate, would it be insoluble & precipitate forms? Write net ionic equation for BaCl_2 + Na_2SO_4 to BaSO_4 + NaCl. We no further information about this chemical reactions. Necessary cookies are absolutely essential for the website to function properly. How can we avoid the occurrence of weld porosity? Determine precipitate solubility according to solubility rules. Now turn that into the total ionic equation. I need a 'standard array' for a D&D-like homebrew game, but anydice chokes - how to proceed? Does sodium carbonate react with sodium chloride? It colours is white and soluble. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. The calcium carbonate will be evident as a gelatinous precipitate solid. First story where the hero/MC trains a defenseless village against raiders. Write the balanced molecular equation.2. Identify any spectator ions. Write the net ionic equation (only) that occurs when aqueous sodium carbonate solution is added to aqueous calcium chloride solution. 3 Na (aq) + Fe (aq) NasFe(s) b. Na (aq) Cl(aq) NaCI(s) c. 3 Na,COs(aq) 2 FeCl(aq) 6NaCI(aq) +Fex(COs)s(aq) d. 2 Fe3 (aq) +3 CO2(aq)Fe(COs)s(s) e. C032-(aq) + Cl-(aq)-+ 2(g) + Cl20(s). Write the molecular, total ionic, and net ionic equations for the reaction of sodium carbonate and silver nitrate. Calcium chloride is used as a deicing agent for roads and sidewalks, as it can lower the freezing point of water. Does calcium chloride could be mixed to other chemical compounds? Write the molecular, complete ionic, and net ionic equations for the reaction that occurs between sodium carbonate and hydrochloric acid. It only takes a minute to sign up. Thus, it will not be present in the net ionic equation and are spectator ions. We're going to want to write a net ionic equation. Experts are tested by Chegg as specialists in their subject area. The result is no visible reaction. Sodium chloride is a strong electrolyte. AnswerS. Find the molecular and ionic equations for __Iron (III) chloride + sodium nitrate__. What happens when sodium carbonate is added to water? The molecular equation is as follows: I assume you have that. Write molecular and net ionic equations for the following reaction. Iron (III) Nitrate reacts with sodium carbonate to form a precipitate. This reaction gives the methanol solvate of the dichloride, which upon heating in a vacuum at about 160 C converts to anhydrous FeCl2. These cookies track visitors across websites and collect information to provide customized ads. This cookie is set by GDPR Cookie Consent plugin. A solution ions? Molecular equation is 3 Na2CO3(aq) + 2 FeCl3 (aq) 6 NaCl (aq) + Fe2(CO3. The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". iron(III) oxide-hydroxide, sodium chloride and carbon dioxide. What is the formula of Iron III chloride? This type of reaction is called a precipitation reaction, and the solid produced in the reaction is known as the precipitate. N H 4 N O 2 + M g F 2, Write net ionic equations for the following molecular equations. 6-(&A!54-.&h All rights reserved. \color{blue}{\rm FeCl_2(aq)+Na_2CO_3(aq)\rightarrow \rm FeCO_3(s)+2NaCl(aq)} Another option to determine if a precipitate forms is to have memorized the solubility rules. Please help!! Yes, iron (III) chloride reacts with sodium carbonate in aqueous solution to produce iron (III) hydroxide which forms precipitate. Ionic Equation: Is he correct? These cookies ensure basic functionalities and security features of the website, anonymously. Likewise, what happens when calcium chloride is mixed with sodium carbonate? 2003-2023 Chegg Inc. All rights reserved. Write the molecular and net ionic equations for the reaction: Pb2+ with Na2SO4(aq) followed by NaC2H3O2(aq). Provide the molecular, ionic, and net ionic equations of the following: Sodium nitrate + Sulfuric acid. Split soluble compounds into ions (the complete ionic equation).4. Nickel(II) bromide and sodium carbonate yields sodium bromide and nickel(II) carbonate. sulfate = SO 4-2. What is the balanced chemical equation for this reaction? {/eq} produces iron (II) carbonate {eq}\rm FeCO_3(s) Solution for Write a molecular equation, net ionic equation, and a complete ionic equation for Sodium Carbonate and Iron (ii) Chloride Molecular equation is 3 Na2CO3 (aq) + 2 FeCl3 (aq) 6 NaCl (aq) + Fe2 (CO3 View the full answer Transcribed image text: What is the net ionic equation for the reaction of aqueous sodium carbonate with aqueous iron (III) chloride? I have no idea what you mean by double displacement. To give these products, an aqueous phase is required because cations and anions should be dissociated in water. Strange fan/light switch wiring - what in the world am I looking at. It is also used in the production of concrete and in drilling fluids to increase fluid density. Get access to this video and our entire Q&A library, Precipitation Reactions: Predicting Precipitates and Net Ionic Equations. When iron II chloride reacts with sodium it produces sodium chloride and iron? Also, some amount of anhydrous iron (III) hydroxide (also called iron (III) oxide-hydroxide) is also produced which is also insoluble. a. potassium chloride + mercury (I) acetate b. chromium (II) bromide + sodium carbonate c. copper (II) Nitrate + Magnesiu. reactions: (1). Balancing Strategies: This is a double replacement displacement reaction. Write the remaining substances as the net ionic equation.Writing and balancing net ionic equations is an important skill in chemistry and is essential for understanding solubility, electrochemistry, and focusing on the substances and ions involved in the chemical reaction and ignoring those that dont (the spectator ions).More chemistry help at http://www.Breslyn.org No information found for this chemical equation. Following the convention of using the smallest possible integers as coefficients, this equation is then written: Cl-(aq)+Ag+(aq) AgCl (s) Cl - ( a q) + Ag + ( a q) AgCl ( s) This net ionic equation indicates that solid silver chloride may be produced from dissolved chloride and silver (I) ions, regardless of the source of these ions. The net ionic equation is what is left. Adding sodium carbonate to strontium nitrate: insoluble, precipitate, A)Iron metal and Chlorine gas react to form solid iron(III) chloride. How to save a selection of features, temporary in QGIS? We therefore write the state symbol (s) after the compound that precipitates out of solution.If you are unsure if a compound is soluble when writing net ionic equations you should consult a solubility table for the compound._________________Important SkillsFinding Ionic Charge for Elements: https://youtu.be/M22YQ1hHhEYMemorizing Polyatomic Ions: https://youtu.be/vepxhM_bZqkDetermining Solubility: https://www.youtube.com/watch?v=5vZE9K9VaJIMore PracticeIntroduction to Net Ionic Equations: https://youtu.be/PXRH_IrN11YNet Ionic Equations Practice: https://youtu.be/hDsaJ2xI59w_________________General Steps:1. Calcium chloride is used as a deicing agent, in the production of concrete and drilling fluids, and as a firming agent and moisture maintainer in the food industry. Sodium Carbonate and Hydrochloric Acid Reaction type: a. Molecular: b. Ionic: c. Net Ionic: d. Spectator Ions: Write the molecular equation, the ionic equation, and the net ionic equation for the reaction between cadmium(II) chloride and sodium sulfide. This cookie is set by GDPR Cookie Consent plugin. This is a reaction where two soluble salts are added together and the result is the precipitation of a single product while the other remains in solution. Be sure to indicate oxidation states (charges on each ion) & the precipitate. The equation would be, `Tabun (C5H11N2O2P) is one of the first nerve agents discovered, and this liquid is known for a fruity odor and can be sprayed as a mist that causes convulsions and paralysis. Our experts can answer your tough homework and study questions. Write the state (s, l, g, aq) for each substance.3. Write the molecular equation, the ionic equation, and the net ionic equation for the reaction between nickel(II) chloride and sodium carbonate. Calculate the energy Calculate the wavelength, `Suppose you were tasked with producing some nitrogen monoxide (a.k.a. HCl being a strong acid will displace it from its salt, forming sodium chloride and acetic acid: CH3COONa + HCl . Provide the molecular, ionic, and net ionic equations of the following: Nickel (II) chloride + Potassium Phosphate. To turn this into the net ionic equation, cancel those ions common to both sides of the equation. 4 Does a reaction occur when aqueous solutions of iron III iodide and sodium carbonate are combined? What is the formula for the ionic compound Iron III carbonate? Provide the molecular, ionic, and net ionic equations of the following: Hydrochloric acid + Sodium Hydroxide, Write the molecular, total ionic, and net ionic equations for the following: a. Aqueous magnesium chloride reacting with aqueous sodium hydroxide. rev2023.1.18.43173. Finally, we cross out any spectator ions. + H2O. So, you can see a white solid at the bottom of the solution at the end of the reaction. If no reaction occurs, complete the molecular and ionic equations, but write "no reaction" in place of the net ionic equation. By removing the spectator ions, we are left with the net ionic equation.
Sites Like Midwest Gun Trader,
Interesting Facts About Woodlice,
Haitian Creole Surnames,
Articles S