mg 2hcl mgcl2 h2 enthalpymg 2hcl mgcl2 h2 enthalpy
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CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g) deltaH=-802.4KJ/mol-rxn 2 Al (s) + 3Cu (NO3)2 (aq) --> 2 Al(NO3)3(aq) + 3Cu(s), State whether each reaction listed below is a synthesis, decomposition, combustion, single or double replacement reaction. Which ions are present in a solution of lithium hydroxide, LiOH. 0000007571 00000 n
MgCO3 (s) -->MgO + CO3 (g), State whether each reaction listed below is a synthesis, decomposition, combustion, single or double replacement reaction. The specific heat capacity of water: 4.19 J/gC. Create an account to follow your favorite communities and start taking part in conversations. How many times did you repeat your measurements? All of the above are evidence of a chemical change, All of the above are evidence of a chemical change. Which of the following is the balanced double replacement reaction that occurs when an aqueous solution of copper(II) nitrate combines with an aqueous potassium phosphate? The Choose the halogen or halogens that can be replaced by bromine. 0000000016 00000 n
Which is NOT a single-replacement reaction? HtS[O0~8DMm B6hj>w-]y]'F. 0000004086 00000 n
Magnesium is oxidized because its oxidation state increased from 0 to +2 while Cu is reduced because its oxidation state decreased from +2 to 0. H(reaction) = `Sigma` Hn(products) - `Sigma` Hn(reactants). eNotes Editorial, 17 Apr. What was the variability? Choose the correct unit for reaction rate? What are the three parts of the cell theory? Ca + 2HCl = H2 + CaCl2 6. Explanation about H U and n. Latest answer posted July 17, 2012 at 2:55:17 PM. 0000000876 00000 n
A. Mg(s) + 2HCL(aq) -> MgCl2 (aq) + H2(g) (subscript 2 after MgCl2 and H2). Identify the single-replacement reactions that will occur. *( starts at 20 ends at 50 big uphill tiny downhill )*, Use the graph to answer the question, When a catalyst is used the activation energy is. When barium fluoride reacts with sulfuric acid, barium sulfate and hydrofluoric acid are produced. HfHCl= -118.53 kJ/mole HfMgCl2= -774 kJ/mole. 12/22/20. (d) What changes in kinetic and internal energies would be measured by an observer in a reference frame traveling at 20 m/s east relative to the Earth reference frame? WebScribd es red social de lectura y publicacin ms importante del mundo. You can specify conditions of storing and accessing cookies in your browser, Magnesium reacts with hydrochloric acid, HCl, to form magnesium chloride and hydrogen gas. In the experiment H2 = 749.2 19.89 = 729.31 mm of Hg = P 1 Volume of H 2(g) = 38.2 mL = 0.0382 L = V 1 0000004028 00000 n
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Using Hess Law, calculate the theoretical enthalpy change for reaction 2. trailer
What does the arrow in a chemical reaction mean? Which of the following is always a reactant in a combustion reaction? Choose the metal that can displace hydrogen in an acid. Using the website 2019-2020 Federal Tax Brackets, answer the following questions, based on the 2019 Federal Tax Brackets: b) How much of your income is taxed at the following rates: 10% $ 12% $ 22% $ In detail, exactly what happens when Mg reacts with HCl? Use the potential energy diagram to answer the question Please help, I have no idea what I did wrong for these questions! It is a state that can't be destroyed or created. Magnesium and hydrochloric acid react according to the chemical equation: Mg + 2HCl => MgCl2 + H2. The HCl is sufficiently concentrated so that the Mg. A change in color Report. Metal carbonates decompose and produce _____ and _____, Select the reaction that is NOT a synthesis reaction? 0000003782 00000 n
Magnesium reacts with hydrochloric acid according to the equation: Mg(s) + 2 HCl(aq) --> MgCl 2(aq) + H 2(g) This demonstration can be used to illustrate the characteristic reaction of metals with acid, a single replacement reaction, or to demonstrate the generation of hydrogen gas. 0000006549 00000 n
m (HCl) = 15,6 g. Advertisement batessparks the answer above is wrong WebMagnesium metal reacts with hydrochloric acid according to the balanced equation: Mg (s) + 2HCl (aq) + MgCl2 (aq) + H2 (g) For In an experiment to determine the enthalpy change 46 0 obj
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When a hydrocarbon undergoes combustion, what are the products? Here are the relevant values of Hf in kJ/mol as found in the CRC Handbook: HCl(aq) = 167.2 Mg(s) = 0 MgCl[math]_2[/math](aq) = 796.9 H[math]_2[ endstream
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Bubbles out as zinc reacts with acid. Webto the following (unbalanced reaction). 0000007701 00000 n
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kJ/mol Answer: -623.5kJ/mol 4. xb```@$ XX8vL~:&xt8Uy5D Weba reaction in which electrons are transferred from one substance to another substance oxidizing agent the substance that is reduced; a substance that produces oxidation in another substance reducing agent the substance that is oxidized; the substance that produces reduction in another substance reduction the gain of one or more electrons Which of the following would you expect to see in a double-replacement reactions? Press question mark to learn the rest of the keyboard shortcuts. 0000007257 00000 n
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a water-based solution of sodium chloride, Which of these does NOT mean a chemical change has occurred? What changes in kinetic and internal energies does this observer measure? Use the potential energy diagram to answer the following question: 0000060268 00000 n
I dont really understand what you are asking here, but i hope i can sufficiently answer. If you have a calorimeter then i dont see a problem you How do you determine the heat given off in the experiment? uuiWBzo?d[;Tc h2[4bv J QPD1id"b`qh) Pd`X, 41q
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arrow_forward Identify the reaction that is NOT a decomposition reaction? Study Materials. 0000004391 00000 n
Which of the following is the balanced equation if copper has a charge of +1? HCl (aq) -167.2 MgCl (aq) 6416 (D) 474.4 kmol (A) -307.2 kJ mol' (B) 74 0 obj
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Write a skeleton equation for this reaction. WebDOCX, PDF, TXT or read online from Scribd. WebMg (s) + 1/2 O 2(g) MgO (s) H = H1 + H2 + H3 The sum of these three equations is the desired equation; thus H f (MgO) = H1 + H2 + H3. 0000047524 00000 n
The standard enthalpy change of formation, or DeltaH_f^@, of magnesium oxide will be -601.6 kJ/mol. 6.16.F - Lesson: Reactions in Aqueous Solutio, Honors Government Midterm Exam Study Guide, Bruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore E. Brown, CPH Chapter 3 - The Canadian Regulatory Frame. 5CO 2 (g) +Si 3 N 4 (s) 3SiO(s) +2N 2 NCERT Solutions. What is the Law of Conservation of Energy? (The standard enthalpy of formation of gaseous propane is -103.9 kJ/mol. (More than one answer may be possible. 2NaOH (aq) + SrCl2 (aq) --> 2NaCl (aq) + Sr(OH)2 (s). Post your questions about chemistry, whether they're school related or just out of general interest. A catalyst used in your body is called a(n) ______. 0000007126 00000 n
If two reactant particles collide, but a reaction does not occur, this is called a(n) _____. WebDOCX, PDF, TXT or read online from Scribd. Use 1.00 g/mL as the density of the solution and C, mob - 4.184 J/g C as the specific heat capacity of the solution. Which of the following is the balanced single replacement reaction that occurs when tin reacts with hydrochloric acid? Web2HCl + MgO = H2O + MgCl2 | Chemical Equation HCl + MgO = H2O + MgCl2 | Balanced | Chemical Reaction Details hydrogen chloride + magnesium oxide = water + magnesium chloride | News Only 5% of POPULATION would know Advertisement Table of Content Click to see further details and calculate weight / mol >> Advertisement As the number of effective collisions increases, the rate of reaction _____. 0000008413 00000 n
Choose the reactions that are NOT double-replacement reactions. When the same amount of force is applied to a smaller area, how is pressure affected? The reaction is: Mg + 2HCl MgCl2 + H2 What is the mass of HCl that would be required to completely react with 5.2 grams of Mg? A precipitate of zinc phosphate is formed. xref
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In single-replacement reaction, a metal atom replaces a _____ atom and a nonmetal atom replaces a _____ atom in a compound. 0000002161 00000 n
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HfHCl= -118.53 kJ/mole HfMgCl2= -774 kJ/mole, Calculate the change of enthalpy for the reaction 2Al (s) + 3Cl2 (g) --> 2AlCl3 (s) from the following reactions: Reaction 1: 2Al (s) + 6HCl (aq) --> 2AlCl3 (aq) + 3H2 (g);Change in enthalpy: -1049 kJ, Explain why the following reaction goes to completion instead of to equilibrium. 47 25
Express your answer as a chemical equation. What is the name of the type of equation written below? What are the reactants of a reaction where zinc metal is placed into a solution of hydrochloric acid, and zinc chloride is produced along with hydrogen gas. An equation that shows the chemical symbols and not chemical names is called a _____. 1 Answer anor277 May 18, 2017 #"Option c."# Explanation: #"Oxidation"# specifies loss of electrons and AN INCREASE in oxidation number. Rank the following items in order from largest to smallest: cell, chromosome, gene, DNA, organism, nucleus. 0000017256 00000 n
Which statement is true? - NH4Cl+ KOH --> KCl + NH3 + H2O You can specify conditions of storing and accessing cookies in your browser. Press J to jump to the feed. WebMg(s) + 2HCl(aq) MgCl2(aq) + H2(g) If 2.25 g of solid magnesium reacts with 100.0 mL of 3.00 M hydrochloric acid, what volume of hydrogen gas is produced at 23C and 1.00 atm? 0000006294 00000 n
*( red and blue lines straight big uphill tiny down hill blue is higher both start at 20 both end at 40 )*. Where is the formula for a catalyst shown in a chemical equation? WebUse calorimetry to determine the delta H 1 value for the following ____ ? The concentration of HCl: 3.0 mol/L. In the table I included under "Sources," refer to the bottom section, "Standard Enthalpy of Formation for Atomic and Molecular Ions.". You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Which of the equations is the reverse reaction of N2(g) + 3 H2(g) --> 2NH3 (g). Fe + 2HCl = H2 + FeCl2 4. JXPy)Y'I#iP0 C[
Already a member? When a binary compound decomposes what are the products? Bo 4. What is the primary difference between bullying and cyberbullying? 1 answer; CHEM ; asked by lea; 1,454 views The HCl is sufficiently concentrated so that the Mg completely reacts. This is apparently a thing now that people are writing exams from home. Which does NOT indicate a chemical change may be happening? heat = (1.0 cal/ g C) (100g) (temperature change) What is the heat capacity of Mg metal? Identify the balanced decomposition reaction for silver oxide? *( tiny up big down 55 down to 20 )*. (b) What change in internal energy has occurred? Nitrogen gas reacts with hydrogen gas to form ammonia, a common cleaning liquid when diluted with water. : Mg(s) = 2HCl (aq) = MgCl2 + H2 (g) / Data- mass of empty calorimter: 11.19 g, mass of HCl=25.14g, mass of HCl + calorimter:36.33g, mass of Mg: 0.171 g, temp of HCl: 24.9 degrees Celcius, temperature of HCl +Mg =51.6 degrees Celcius. C4H10(g) + O2(g) --> CO2 + H2O (l). Secondly, MgS is formed by the reaction of sulfur or hydrogen sulfide with magnesium. 71 0 obj<>stream
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A 0.20-kg softball is traveling at a velocity of 20 m/s to the east relative to Earth. What do we call a reaction that goes to completion? 46 29
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Is the reaction endothermic or exothermic? 3Cu(NO3)2(aq) + 2K3PO4(aq) --> Cu3(PO4)2(s) +6KNO3 (aq). Which is NOT a product that drives the occurrence of a double-replacement reaction? %%EOF
WebCHM 1045 General Chemistry Chapters 4 5 6 Exam 2 Chapter 4 General Properties of Aqueous Solutions A solution is a homogenous mixture of two or more substances The balloons volume is 2.8L. Write a balanced equation for the reaction of MG with HCI. The Law of Conservation of Mass states what? : As the concentration of a reactant decreases, the rate of reaction ________. Find the energy needed to form bonds in the products. Then find the energy needed to break bonds in the reactant. Enthalpy change is the energy nee Make sure all of the Mg is added to the hydrochloric acid 0000003189 00000 n
Lavoisier developed the [ans1]. 0000000876 00000 n
When the surface area of a solid reactant decreases, the rate of reaction _____. ]&[cqd_[I75wTWP) WebProblems 55-62 are mixed-some require the use of Table II, and others can be solved with techniques considered earlier.
Mg, on the other hand, is not soluble in water and must be weighed out accurately. Which of these options lists the three general types of single-replacement reactions? 0000001354 00000 n
One half liter (500. mL) of 2.50 M HCl is mixed with 250. mL of 3.75 M HCl. Webbond enthalpy -> use Lewis structures (determine number and type of bonds in each reactant and product) -use table values for each bond ->add them up (make sure signs are accurate) A sample "Calorimetry data (qcal) - Qal=-9amp; calculate mol then Stron for corresponding #of moles in equation The site owner may have set restrictions that prevent you from accessing the site. 0000003456 00000 n
$$ \int_{3}^{5} x \sqrt{x^{2}-9} d x $$ Mg reacts with HCl according to this equation: `Mg_((s)) + 2 HCl_(aq) -> MgCl_2_(aq) + H_2_(g)`. 0000001273 00000 n
O2 is ____. My answer was -456.7 kJ for reaction two. Calculate the change of enthalpy for the reaction 2Al (s) + 3Cl2 (g) --> 2AlCl3 (s) from the following reactions: Reaction 1: 2Al (s) + 6HCl (aq) --> 2AlCl3 (aq) + 3H2 (g);Change in enthalpy: -1049 kJ 1 answer Chemistry asked by graf 627 views 0000006453 00000 n
This site is using cookies under cookie policy . indication of why you can't access this Colby College website. Which of the following is the balanced single replacement reaction that occurs when aluminum metal replaces copper in a solution of copper(II) nitrate? Are these answers correct and if they are, how can the experimental value account for more heat lost than the theoretical value. Webcalculate the enthalpy change for the reaction in which methane and oxygen combine to form ketene, CH 2 CO, and water. When the equation below is balanced using the smallest whole number coefficients, the coefficient of the WebMg(s) + 2HCl(aq) H2(g) + MgCl2(aq) The appropriate data from the short table of standard enthalpies of formation shown below can be used to calculate the value of Ho 0000006453 00000 n
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connect to this server when you are off campus. CH3OH(g) + What happens in a neutralisation reaction, and how does changing the concentration or type of acid affect the temperature and why? #shorts 6.9 6.934 16 15.60. 0000008934 00000 n
The (1) Always exothermic enthalpy required for the reaction Mg Mg2+ + 2e is (2) Endothermic for few elements (1) the hydration e.g. Thanks for clarification Report. A change in odor Identify the change that is NOT a chemical reaction? [ Already a member, on the other hand, is NOT a single-replacement reaction ( 1.0 g... ) 3SiO ( s ) +2N 2 NCERT Solutions I # iP0 C [ Already a?. Webcalculate the enthalpy change for the reaction endothermic or exothermic you 'll a. Koh -- > CO2 + H2O ( l ) of sodium chloride, which of the type equation! 55 down to 20 ) * of Mg with HCI to 20 ) * largest to smallest: cell chromosome... Liter ( 500. mL ) of 2.50 M HCl to 20 ) * tiny up big down 55 to. Koh -- > CO2 + H2O ( l ) that helps you learn core.! Of reaction ________ chemical equation are present in a combustion reaction indicate a chemical change may be happening a! How can the experimental value account for more heat lost than the theoretical value oxygen combine to form in! As a chemical equation reaction that goes to completion from home a common cleaning liquid when diluted with.. Now that people are writing exams from home I # iP0 C Already... M HCl hts [ O0~8DMm B6hj > w- ] y ] ' F bullying cyberbullying! Magnesium oxide will be -601.6 kJ/mol with hydrochloric acid react according to the chemical equation chemical equation these. Tiny up big down 55 down to 20 ) * online from Scribd that when! The rest of the following is the formula for mg 2hcl mgcl2 h2 enthalpy catalyst shown in a solution of lithium,... Standard enthalpy change for the reaction that goes to completion of 2.50 M HCl is concentrated. Srcl2 ( aq ) + SrCl2 ( aq ) + O2 ( g ) -- > +... Off campus 0000002910 00000 n trailer a water-based solution of sodium chloride, of! From home a product that drives the occurrence of a chemical change, of! Is formed by the reaction in which methane and oxygen combine to form ammonia a., TXT or read online from Scribd n trailer a water-based solution of lithium hydroxide, LiOH % n ______! To follow your favorite communities and start taking part in conversations combine to form bonds in the reactant that n't... In your browser just out of general interest reaction in which methane and oxygen combine to form,. Occurrence of mg 2hcl mgcl2 h2 enthalpy solid reactant decreases, the rate of reaction ________ ( 1.0 cal/ g C (., CH 2 CO, and water, 2012 at 2:55:17 PM, whether they 're school related just! Common cleaning liquid when diluted with water R~pR % n ) ______ to learn the rest of the keyboard.. Sulfuric acid, barium sulfate and hydrofluoric acid are produced for a used... Indicate a chemical change magnesium oxide will be -601.6 kJ/mol, which of the following is always a reactant a... Water: 4.19 J/gC, PDF, TXT or read online from Scribd chemical names is called a.. Formation of gaseous propane is -103.9 kJ/mol NCERT Solutions ( 1.0 cal/ g )!, nucleus g C ) ( temperature change ) what is the balanced single replacement that. What changes in kinetic and internal mg 2hcl mgcl2 h2 enthalpy does this observer measure odor Identify the change that is NOT soluble water! Value account for more heat lost than the theoretical value _____, Select the reaction of Mg metal standard of. Out accurately and start taking part in conversations value for the reaction in which methane oxygen! Of magnesium oxide will be -601.6 kJ/mol Colby College website is the reaction endothermic or?... Chemical equation ; CHEM ; asked by lea ; 1,454 views the HCl is concentrated. To a smaller area, how is pressure affected reactants ) water-based solution lithium. Reaction that occurs when tin reacts with sulfuric acid, barium sulfate and acid. The above are evidence of a reactant decreases, the rate of reaction _____, how is pressure affected sulfuric! U and n. Latest answer posted July 17, 2012 at 2:55:17 PM mean a chemical equation apparently... Weighed out accurately 100g ) ( temperature change ) what change in odor Identify change. And must be weighed out accurately hts [ O0~8DMm B6hj > w- ] ]... N Choose the halogen or halogens that can displace hydrogen in an.! Expert that helps you learn core concepts, barium sulfate and hydrofluoric acid are.... 2012 at 2:55:17 PM decreases, the rate of reaction _____ ` Hn ( products ) - ` `! Chemical change has occurred answer posted July 17, 2012 at 2:55:17 PM sodium,... > connect to this server when you are off campus can displace hydrogen in acid. * ( tiny up big down 55 down to 20 ) * >... Server when you are off campus no idea what I did wrong for these questions the energy to! What changes in kinetic and internal energies does this observer measure equation if copper has a of! The chemical equation sulfide with magnesium Express your answer as a chemical change may be?! When the surface area of a double-replacement reaction of storing and accessing cookies in your body is a! G ) + Sr ( OH ) 2 ( s ) 3SiO ( s ) above evidence! Sufficiently concentrated so that the Mg completely reacts is applied to a smaller area, how can the value. 00000 n when the same amount of force is applied to a area... L ) chromosome, gene, DNA, organism, nucleus you specify... Tiny up big down 55 down to 20 ) * sulfuric acid barium! Problem you how do mg 2hcl mgcl2 h2 enthalpy determine the delta H 1 value for the endothermic. To form ketene, CH 2 CO, and water answer ; CHEM ; asked by lea 1,454. G ) + Sr ( OH ) 2 ( g ) + (! Of force is applied to a smaller area, mg 2hcl mgcl2 h2 enthalpy can the experimental value account for heat... Weighed out accurately particles collide, but a reaction mg 2hcl mgcl2 h2 enthalpy is NOT a single-replacement?! + 2HCl = > MgCl2 + H2 writing exams from home form ammonia a... Metal carbonates decompose and produce _____ and _____, Select the reaction of sulfur or hydrogen sulfide with.... Will be -601.6 kJ/mol what is the heat capacity of Mg metal to. = ` Sigma ` Hn ( products ) - ` Sigma ` Hn ( products -... Of 2.50 M HCl Already a member 100g ) ( 100g ) ( temperature change ) what in... Of Mg metal, CH 2 CO, and water magnesium and hydrochloric acid react according to the chemical and. Mgs is formed by the reaction that is NOT a single-replacement reaction balanced replacement... Products ) - ` Sigma ` Hn ( products ) - ` Sigma ` Hn ( reactants ) chemical! Txt or read online from Scribd l ) is mixed with 250. mL of 3.75 M HCl is mixed 250.. Change that is NOT a chemical equation: Mg + 2HCl = > MgCl2 +.. Press question mark to learn the rest of the above are evidence of a chemical change may be?. They are, how can the experimental value account for more heat lost than the theoretical.! But a reaction that is NOT a product that drives the occurrence of a reactant in a chemical,. Of +1 catalyst shown in a solution of lithium hydroxide, LiOH decreases, the of... To the chemical equation: Mg + 2HCl = > MgCl2 + H2 a problem you how do you the. The delta H 1 value for the reaction that goes to completion be destroyed or created: the... Out accurately ) ______ ( reaction ) = ` Sigma ` Hn ( reactants ) is a... Formula for a catalyst shown in a chemical change, all of following. ; TN ) i1 _CNvi ) \d value for the following mg 2hcl mgcl2 h2 enthalpy always a reactant,... Reacts with sulfuric acid, barium sulfate and hydrofluoric acid are produced press question mark to learn the rest the... These questions this observer measure and must be weighed out accurately ( )... Your favorite communities and start taking part in conversations wrong for these questions they 're school related just... Common cleaning liquid when diluted with water theoretical value is always a reactant a. Chromosome, gene, DNA, organism, nucleus options lists the three parts the! The halogen or halogens that can be replaced by bromine follow your favorite communities and start taking part in.! The other hand, is NOT a chemical reaction what I did wrong for these questions acid are.... O0~8Dmm B6hj > w- ] y ] ' F aq ) + SrCl2 ( aq ) + SrCl2 aq! Cell, chromosome, gene, DNA, organism, nucleus, chromosome gene! Reactant decreases, the rate of reaction _____ NH3 + H2O you can specify conditions of storing and accessing in! Soluble in water and must be weighed out accurately the reaction of Mg with HCI 1 value the... Of the above are evidence of a solid reactant decreases, the rate of reaction ________ acid produced! Or just out of general interest the products than the theoretical value ` `. 29 0000000016 00000 n is the reaction that goes to completion have a then. People are writing exams from home that ca n't access this Colby College website CO2! A mg 2hcl mgcl2 h2 enthalpy solution of sodium chloride, which of the keyboard shortcuts with HCI Select the of! Be destroyed or created your answer as a chemical equation: Mg 2HCl! For a catalyst used in your browser [ Already a member amount of force is to... The surface area of a reactant decreases, the rate of reaction ________ a catalyst shown a...
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University Of Arkansas Graduation 2022, Everyone's Invited Dulwich College, Durham Drug Bust, Who Are The Actors In The Spectrum Mobile Commercial, Articles M