Feb 19, 2563 BE ... Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule. In ...Jan 30, 2023 · Resonance is a mental exercise within the Valence Bond Theory of bonding that describes the delocalization of electrons within molecules. It involves constructing multiple Lewis structures that, when combined, represent the full electronic structure of the molecule. Resonance structures are used when a single Lewis structure cannot fully ... Jan 25, 2016 · (O=)_2S(-O^-)_2 There are 5xx6+2 = 32 electrons to distribute over 5 centres (why? because all of the atoms are from Group VI, and thus each has 6 valence electrons, + 2 electrons for the negative charges). Of course this is a resonance structure, in that ALL the sulfur oxygen bonds are equivalent. If we keep (arbitrarily) to the given resonance structure, around each doubly bound oxygen there ... Oct 20, 2020 · Some molecules or ions cannot be adequately described by a single Lewis structure. For example, drawing one Lewis structure for ozone (O 3) gives us a misleading picture of the actual bonding in the molecule. If we draw a Lewis structure for O 3 (ozone), we get this: This structure predicts that the two bonds are different lengths and strengths ... Chemistry. Chemistry questions and answers. Please consider this ion: SO4-2 to answer the following questions. a) How many total valence electrons are there in this ion? b) Draw the Lewis dot structure of this ion. c) Based on your dot structure, calculate the formal charge on the central sulfur atom. c) How many sigma bonds and pi bonds are ...Jun 25, 2020 · How To Draw The Lewis Structure of SO4 2- (Sulfate Ion) This chemistry video explains how to draw the lewis structure of the sulfate ion SO4 2-. Chemistry - Basic Introduction: • Chemistry ... If you get stuck, try asking another group for help. For each of the following, draw the Lewis dot structure, give the electron arrangement (E.A.) and the molecular geometry (M.G.): PF5 P F 5. CS2 C S 2. BrO−3 B r O 3 −. NH+4 N H 4 +. SCl4 S C l 4.The lewis dot structure for the sulfate ion, SO4^2-, draw the lewis. What is the molecular geometry of this polytatomic ion? What is the O-S-O bond angle? In this video you will learn how to draw lewis structure for chemicals based on total valence electrons, octet rule, duet rule, and also you will learn about...In the lewis structure of Nitrogen trifluoride (NF 3), there are three N-F bonds and one lone pair on nitrogen atom. Each fluorine atom has three lone pairs. Lewis structure of NF 3 can be drawn by starting from valence electrons of nitrogen and fluorine atoms in several steps. Each step of drawing the lewis structure of NF 3 is explained in ...Jun 7, 2556 BE ... A step-by-step explanation of how to draw the PO43- Lewis Dot Structure (Phosphate ion). For the PO4 3- structure use the periodic table to ...There are two S = O bonds and two S - O bonds in the Sulfate ion Lewis structure. Lewis Dot Structure of NO 2 -: Total valence electrons= Valence electron of Nitrogen + Valence electron of Oxygen. Valence electrons= 5 + 6 × 2 + 1 = 18. Due to one negative charge, one electron will be added. In the Lewis dot structure for Nitrate ion Nitrogen ... In the above Lewis dot structure of SO 2, each bonding electron pair (:) can also be represented as a single bond (|). As a result, you will have the following Lewis structure for SO 2. Molecular Geometry of SO 2. To identify the molecular geometry of sulfur dioxide, we must examine its Lewis structure. Two oxygen atoms are linked to the ...The hybridization of SO3 is sp2. It is determined with the help of formula: Number of hybrid orbitals = Number of sigma bonds + Number of lone pairs. In a single shared double covalent bond, there exists one sigma (σ) bond and one pi (π) bond. So, the total number of sigma bonds in a single SO3 molecule is three, and the total number of …We can illustrate the formation of a water molecule from two hydrogen atoms and an oxygen atom using Lewis dot symbols: The structure on the right is the Lewis electron structure, or Lewis structure, for H 2 O. With two bonding pairs and two lone pairs, the oxygen atom has now completed its octet. Moreover, by sharing a bonding pair with oxygen ...Draw the Lewis structure for in SO42-. Show your calculations for the formal charges on all of the atoms. Chemistry: The Molecular Science. 5th Edition. ISBN: 9781285199047. Author: John W. Moore, Conrad L. Stanitski. Publisher: John W. Moore, Conrad L. Stanitski. Chapter19: The Chemistry Of The Main-group Elements.Placing one bonding pair of electrons between the O atom and each H atom gives H:O:H, with 4 electrons left over. Each H atom has a full valence shell of 2 electrons. Adding the remaining 4 electrons to the oxygen (as two lone pairs) gives the following structure: This is the Lewis structure we drew earlier.Both of your Lewis structures are wrong. In both of the shown structures, the solid line from sodium to oxygen/ sulfur implies that there is a discrete bond between these atoms. This is not the case. The sodium ions and the thiosulfate ions form ion pairs (or ion triples) and are attracted to each other via diffuse electrostatic interactions.A step-by-step explanation of how to draw the Sulfate Ion Lewis Dot Structure (SO42- ). We'll also look at the molecular geometry, bond angles, electron geo...Draw the Lewis structure for H2SO4, HSO4–, and SO42–. For each species, determine the maximum number of equivalent resonance structures. Sulfur is the central atom in all three species. On the other hand, if the molecule contains hydrogen atoms they are attached to the oxygen atoms. Only include the best structures, e.g. a structure with bad formal …manisha2482. report flag outlined. hiiiiii. a step -by step explanation of how to draw the h2so4 lewis structure (sulfuric acid.)when we have an h (or h2)in front of a polyatomic molecule ( like co3,so4,no2,etc.) we know that it's an acid. this means that the hydrogen atoms will be attached to the outside of the oxygen molecules.Chemistry questions and answers. 1. Draw the Lewis Dot Structure for the following: a. SO3 b. SO4-2 c. H2CO d. HCl 2.Using the Lewis Dot Structure from above, determine the Electronic Geometry (EG), Molecular Geometry (MG), and Polarity for each. Formula Electronic Geometry Molecular Geometry Polarity SO3 SO4-2.I quickly take you through how to draw the Lewis Structure of ClO2- (Chlorite Ion). I also go over the formal charge, hybridization, shape, bond angle and re...A step-by-step explanation of how to draw the PCl5 Lewis Dot Structure (Phosphorus pentachloride).For the PCl5 structure use the periodic table to find the t...A step-by-step explanation of how to draw the Al2(SO4)3 Lewis Dot Structure.For Al2(SO4)3 we have an ionic compound and we need to take that into account whe...See full list on chemistryscl.com Lewis Dot Structures, Electron and Molecular Geometry. 1 1. Draw the best Lewis Dot Structure for each of the following species. Give the name of the electronic arrangement and the name for the molecular geometry for each of the species. 2 3 4 5.11m. Draw the Lewis structures for each of the following molecules or ions. Identify instances where the octet rule is not obeyed; state which atom in each compound does not follow the octet rule; and state how many electrons surround these atoms: (a) PF6-, (b) BeCl2, (c) NH3, (d) XeF2O (the Xe is the central atom), (e) SO42 - .This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Draw a Lewis structure of sulfate (SO42−) that minimizes charge. Include all electrons and formal charges. Atoms, Bonds and Rings Draw or tap a new bond to see. There’s just one step to solve this.Draw the Lewis Dot Structure for CHO 2 1-and all possible resonance structures. Assign Formal Charges. Draw the Resonance Hybrid Structure for PO 4 3-. Draw the Resonance Hybrid Structure for NO 3-. Answers. 1. False, because the electrons were not moved around, only the atoms (this violates the Resonance Structure Rules). 2.Now in the SO2 molecule, you have to put the electron pairs between the sulfur atom (S) and oxygen atoms (O). This indicates that the sulfur (S) and oxygen (O) are chemically bonded with each other in a SO2 molecule. Step 4: Make the outer atoms stable. Place the remaining valence electrons pair on the central atom.A step-by-step explanation of how to draw the Sulfate Ion Lewis Dot Structure (SO42- ). We'll also look at the molecular geometry, bond angles, electron geo...Lewis Dot of the Sulfate Ion. SO 42-. Back. 70 More Lewis Dot Structures. S does not follow the octet rule. It will hold more than 8 electrons. Sulfur having valence electrons in the 3rd energy level, will also have access to the 3d sublevel, thus allowing for more than 8 electrons. Elements in the first 2 periods of the Periodic Table do not ... Mar 31, 2564 BE ... Comments9 · Lewis Structures Made Easy: Examples and Tricks for Drawing Lewis Dot Diagrams of Molecules · Lewis Structure of SO4(2-) (Sulfate)&nbs...A) Draw the Lewis dot structure for SO 4-2 ion. B) What is the formal charge on each atom? C) What is the overall formal charge on each Oxygen atom? A) Draw a single bond, a double bond and a triple bond between two carbon atoms. B) What is the hybridization of each carbon atom? C) How does the bond length of each bond compare to the others?Expert-verified. SO42- 1. Write the Lewis structure for SO 2 on your paper, 1. Include formal charges on all atoms. Write three (3) different Lewis structures for this molecule. Identify the total formal charge on each Lewis Structure Circle the best Lewis structure . For the best Lewis structure, draw all of the resonance structures Answer the ...Both of your Lewis structures are wrong. In both of the shown structures, the solid line from sodium to oxygen/ sulfur implies that there is a discrete bond between these atoms. This is not the case. The sodium ions and the thiosulfate ions form ion pairs (or ion triples) and are attracted to each other via diffuse electrostatic interactions.Draw the Lewis structure for in SO42-. Show your calculations for the formal charges on all of the atoms. Chemistry: The Molecular Science. 5th Edition. ISBN: 9781285199047. Author: John W. Moore, Conrad L. Stanitski. Publisher: John W. Moore, Conrad L. Stanitski. Chapter19: The Chemistry Of The Main-group Elements.A) Draw the Lewis dot structure for SO 4-2 ion. B) What is the formal charge on each atom? C) What is the overall formal charge on each Oxygen atom? A) Draw a single bond, a double bond and a triple bond between two carbon atoms. B) What is the hybridization of each carbon atom? C) How does the bond length of each bond compare to the others?Feb 16, 2024 · Similarly, the structure of sulphate ions has two negative charges, which means it has two electrons. Sulphur has 6 6 electrons in its valence shell and Lewis dot structure of sulphur gives it two unshared pairs and two unpaired electrons. The structure of sulphate ion is shown below. We can see that two of the oxygen atoms are attached to ... HNO 3 (Nitric acid) Lewis Structure. HNO 3 (Nitric acid) lewis stricture is drawn step by step by using valence electrons of each element. In the lewis structure of nitric acid, there is a +1 charge on nitrogen atom and one double bond between nitrogen and one oxygen atom. Lewis structure of nitric acid. There is a N=O bond in nitric acid lewis ...The sulphate ion is mainly composed of sulphur and oxygen atoms. Here, sulphur is the central atom, and it is surrounded by four oxygen atoms that are located at equal distances in the plane. For the bonding, 2 of the oxygen atoms form S=O bonds and the other two form S-O- bonds. The oxygen atoms are responsible for the negative charge (-2) of ... BeCl2 Lewis Structure. The electrons present in the outermost shell of an atom are shown in the Lewis structure of any molecule. These electrons will be both bonding as well as non-bonding electrons. The electronic configuration of beryllium is [He] 2s2and chlorine is [Ne] 3s23p5. The number of electrons on the valence shell of Be and Cl is 2 ...Draw the Lewis structure for H2SO4, HSO4–, and SO42–. For each species, determine the maximum number of equivalent resonance structures. Sulfur is the central atom in all three species. On the other hand, if the molecule contains hydrogen atoms they are attached to the oxygen atoms. Only include the best structures, e.g. a structure with bad formal …Next, we'll draw bonds between the Sulfur and the Oxygens, so there we have four bonds and we've used eight valence electrons. Let's go around the outer atoms ...The lewis dot structure of H 3 O + has two lone pairs on its central atom. View Solution. Q4. In the Lewis structure for the O F 2 molecule, the number of lone pairs of electrons around the central oxygen atom is: View Solution. …Dec 17, 2560 BE ... SO4 2- Lewis Structure - How to Draw the Lewis Structure for SO4 2 Sulfate Ion) This step by step explanation by Wayne Breslyn would be ...The Lewis structure for sulfate is dependent on the formal charge of sulfur. Sulfates molecular formula is SO42-. Two double bonds and two single bonds are used to link oxygen to the sulfur atom.This chemistry video tutorial explains how to draw the lewis structure of H2SO4 - Sulfuric Acid.Chemistry - Basic Introduction: https://ww...Atomic structure (205) Chemical bonding and molecular structure (352) Chemical thermodynamics (381) Solutions (205) Equilibrium (259) Redox reactions and electrochemistry (214) Chemical kinetics (244) Surface chemistry (97) Classification of elements and periodicity in properties (91) General principles and process of Isolation of …Environmental. Nmr. Instructional. An Introduction to Chemistry. General Chemistry Modules. General Chemistry Problems. Flash Demonstrations and Rollover Drills. Laboratory Tutorials. Supplemental Material for Chemistry. Draw the Lewis dot structure for PH3 and provide the following information. a. molecular geometry b. electron geometry c. hybridization of the central atom d. polarity Draw the Lewis structure for SO42- and state its molecular geometry. Is it polar or nonpolar?Draw the Lewis dot structure for PH3 and provide the following information. a. molecular geometry b. electron geometry c. hybridization of the central atom d. polarity Draw the Lewis structure for SO42- and state its molecular geometry. Is it polar or nonpolar?BeCl2 Lewis Structure. The electrons present in the outermost shell of an atom are shown in the Lewis structure of any molecule. These electrons will be both bonding as well as non-bonding electrons. The electronic configuration of beryllium is [He] 2s2and chlorine is [Ne] 3s23p5. The number of electrons on the valence shell of Be and Cl is 2 ...As far as I understand $\ce{SO4^2-}$ structure, sulfur makes two coordinate bonds with two oxygen atoms and two double bonds are formed with oxygen after sulfur expands it's valance shell to 6. At this point calculating formal charge of those two coordinate bonded oxygen gives total formal charge of −2 and the formal charge on …Nov 23, 2561 BE ... A step-by-step explanation of how to draw the HPO4 2- Lewis Dot Structure (Hydrogen phosphate ion). For the HPO4 2- structure use the ...To draw so42-Lewis structures accurately, we can follow a set of guidelines: Determine the total number of valence electrons in the molecule. Place the …Question: Molecule Lewis Dot Structure or Ion Molecular Shape Polar or Nonpolar Hybridizat ion of the Central Atom PCIS BF XeCHA SO42 Determine the hybridization for each of the following substances Compound Hybridization CH4 CH2O CN SF6 PF3Cl2 NO21. Show transcribed image text. Here’s the best way to solve it.You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: SO42− Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure. SO42− Draw the molecule by placing atoms on the ...Both of your Lewis structures are wrong. In both of the shown structures, the solid line from sodium to oxygen/ sulfur implies that there is a discrete bond between these atoms. This is not the case. The sodium ions and the thiosulfate ions form ion pairs (or ion triples) and are attracted to each other via diffuse electrostatic interactions.Mar 24, 2551 BE ... Lewis Structure of SO4 2- (Sulphate ion). Chemistry 360•1.9K views · 165 videos ... How to Draw the Lewis Dot Structure for NaOH (Sodium hydroxide).Jun 23, 2022 · A step-by-step explanation of how to draw the N2 Lewis Dot Structure (Nitrogen gas).For the N2 structure use the periodic table to find the total number of v... Jan 20, 2562 BE ... There are equivalent six resonance structures SO4 2- the Sulfate ion. We start with a valid Lewis structure and then follow these general ...A step-by-step explanation of how to draw the SO3 2- Lewis Structure (Sulfite Ion). For the SO3 2- Lewis structure the total number of valence electrons ...Solution Steps to draw the lewis structure: Lewis dot structures are diagrams that show the bonding between atoms of a molecule, as well as lone pairs of electrons that may …A Lewis electron dot structure describes the bonding atoms, the number of bonds in the molecule, and the lone pairs left in the bonding atoms. The steps that must be followed while drawing a Lewis structure are listed below. First, the total number of valence electrons present in the molecule is calculated by adding the individual valencies of ... We can illustrate the formation of a water molecule from two hydrogen atoms and an oxygen atom using Lewis dot symbols: The structure on the right is the Lewis electron structure, or Lewis structure, for H 2 O. With two bonding pairs and two lone pairs, the oxygen atom has now completed its octet. Moreover, by sharing a bonding pair with oxygen ...Jan 21, 2021 · Lewis Dot Structure of SO4 2- | How to Draw Lewis Structures| Class 11 ChemistryQueries Solved in this videos:-1) lewis structure2) lewis structure chemistry... Drawing the Lewis Structure for SO 3 2-. Viewing Notes: The Lewis structure for SO 3 2-is requires you to place more than 8 valence electrons on Sulfur (S).; You might think you've got the correct Lewis structure for SO 3 at first. Remember, Sulfur is in Period 3 and can hold more than 8 valence electrons.It has two lone pairs and two bonding electrons (one electron in either orbital). Rather than make the shape and add enough electrons in, think about where the electrons are. Sulphur and oxygen are both in group 6 and it is overall 2- charge. Add up the valence electrons and you get 32 ((5*6)+2) so there should be 32 electrons in the final ... Oct 29, 2021 · Step 1: Figure out how many electrons the molecule must have, based on the number of valence electrons in each atom. When drawing the structure of an ion, be sure to add/subtract electrons to account for the charge. Step 2: Connect the atoms to each other with single bonds to form a “skeleton structure.”. Expert-verified. SO42- 1. Write the Lewis structure for SO 2 on your paper, 1. Include formal charges on all atoms. Write three (3) different Lewis structures for this molecule. Identify the total formal charge on each Lewis Structure Circle the best Lewis structure . For the best Lewis structure, draw all of the resonance structures Answer the ...Expert-verified. Share Share. Step 1. The main objective is to draw the correct resonance form structure of given molecules. It depends on... View the full answer Step 2. Unlock. Step 3. Unlock.The hybridization of SO3 is sp2. It is determined with the help of formula: Number of hybrid orbitals = Number of sigma bonds + Number of lone pairs. In a single shared double covalent bond, there exists one sigma (σ) bond and one pi (π) bond. So, the total number of sigma bonds in a single SO3 molecule is three, and the total number of …May 22, 2023 · How to Draw the Lewis Dot Structure for SO4 2- (Sulfate ion) Optimizing the Structure. To optimize the Lewis structure, we can rearrange the lone pairs of electrons to minimize formal charges and maximize stability. In the case of SO42-, there is no need for further optimization since all atoms have a formal charge of 0, and the octets are filled. Write Lewis structure of the following compound and show formal charge on each atom. H N O 3 (ii) Write Lewis structure of the following compound and show formal charge on each atom. N O 2 (iii) Write Lewis structure of the following compound and show formal charge on each atom. H 2 S O 4A step-by-step explanation of how to draw the Sulfate Ion Lewis Dot Structure (SO42- ). We'll also look at the molecular geometry, bond angles, electron geo...We can illustrate the formation of a water molecule from two hydrogen atoms and an oxygen atom using Lewis dot symbols: The structure on the right is the Lewis electron structure, or Lewis structure, for H 2 O. With two bonding pairs and two lone pairs, the oxygen atom has now completed its octet. Moreover, by sharing a bonding pair with oxygen ...In this video you will learn how to draw lewis structure for chemicals based on total valence electrons, octet rule, duet rule, and also you will learn about...Dec 21, 2563 BE ... 3.Sol :- (a). In lewis structure number of valence electrons are denoted by dots. So, the lewis structure of SO42- is : (b) ...May 22, 2566 BE ... Lewis structure of SO4 2- ion (Sulfate ion) contains two double bonds and two single bonds between the Sulfur (S) atom and Oxygen (O) atoms. The ...Formaldehyde Lewis structure. Lewis structure is a pictorial representation of the atoms in the molecules, their bonds, and lone pairs of electrons. The bonds are represented by drawing lines, whereas the electrons are represented by dots. Thus it is also called dot and line structure. Here for Methanal or Formaldehyde, we have 12 valence ...
Lewis Dot Structures. Lewis Structure Co2. Lewis Structure of Carbon Dioxide. Carbon dioxide is a colourless, odourless, incombustible gas produced by the combustion of carbon. The carbon-oxygen ratio in a CO 2 molecule is 1:2. Two double bonds connect the carbon and oxygen atoms in the Lewis structure. Two oxygen atoms are present at the .... Gabriel rolon cara a cara
Jun 10, 2013 · A step-by-step explanation of how to draw the SO3 2- Lewis Structure (Sulfite Ion). For the SO3 2- Lewis structure the total number of valence electrons ... Mar 31, 2564 BE ... Comments9 · Lewis Structures Made Easy: Examples and Tricks for Drawing Lewis Dot Diagrams of Molecules · Lewis Structure of SO4(2-) (Sulfate)&nbs...Chemistry questions and answers. 1. Draw the Lewis Dot Structure for the following: a. SO3 b. SO4-2 c. H2CO d. HCl 2.Using the Lewis Dot Structure from above, determine the Electronic Geometry (EG), Molecular Geometry (MG), and Polarity for each. Formula Electronic Geometry Molecular Geometry Polarity SO3 SO4-2. Write the Lewis structure of the polyatomic ions CN-, SO42- . Use app ×. Login ... Draw the Lewis structures for the following molecules and ions: H2S, SiCl4, BeF2, CO3^2-, HCOOH. asked Jan 24, 2020 in Chemistry by Nishu03 (64.8k points) chemical bonding; molecular structure; class-11;Lewis Structure Examples. The Lewis electron dot structures of a few molecules are illustrated in this subsection. 1. Lewis Structure of CO2. The central atom of this molecule is carbon. Oxygen contains 6 valence electrons which form 2 lone pairs. Since it is bonded to only one carbon atom, it must form a double bond.2. ) Lewis Structure, Hybridization. Sulfur dioxide molecule contains one sulfur atom and two oxygen atoms. We will construct the lewis structure of SO 2 molecule by following VSEPR theory rules and considering stability of intermediate structures. After obtaining the lewis structure of SO 2, we can determine the hybridization of atoms.Lewis Structure Examples. The Lewis electron dot structures of a few molecules are illustrated in this subsection. 1. Lewis Structure of CO2. The central atom of this molecule is carbon. Oxygen contains 6 valence electrons which form 2 lone pairs. Since it is bonded to only one carbon atom, it must form a double bond.Expert-verified. Share Share. Step 1. The main objective is to draw the correct resonance form structure of given molecules. It depends on... View the full answer Step 2. Unlock. Step 3. Unlock.Aug 23, 2564 BE ... - Lewis Structure. It is a chemical formula for Sulfate ion. To determine its Lewis Structure, we first find out the total number of valence ...Draw the Lewis structure for H2SO4, HSO4–, and SO42–. For each species, determine the maximum number of equivalent resonance structures. Sulfur is the central atom in all …The hybridization of SO3 is sp2. It is determined with the help of formula: Number of hybrid orbitals = Number of sigma bonds + Number of lone pairs. In a single shared double covalent bond, there exists one sigma (σ) bond and one pi (π) bond. So, the total number of sigma bonds in a single SO3 molecule is three, and the total number of …Expert-verified. SO42- 1. Write the Lewis structure for SO 2 on your paper, 1. Include formal charges on all atoms. Write three (3) different Lewis structures for this molecule. Identify the total formal charge on each Lewis Structure Circle the best Lewis structure . For the best Lewis structure, draw all of the resonance structures Answer the ... Feb 16, 2024 · Similarly, the structure of sulphate ions has two negative charges, which means it has two electrons. Sulphur has 6 6 electrons in its valence shell and Lewis dot structure of sulphur gives it two unshared pairs and two unpaired electrons. The structure of sulphate ion is shown below. We can see that two of the oxygen atoms are attached to ... This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Draw a Lewis structure of sulfate (SO42−) that minimizes charge. Include all electrons and formal charges. Atoms, Bonds and Rings Draw or tap a new bond to see. There’s just one step to solve this.View Solution. Q 5. Draw the lewis dot structures of : a) H 2SO4. b) CO2− 3. c) O3. View Solution. Click here:point_up_2:to get an answer to your question :writing_hand:draw the lewis dot structure of the followingc o 3 2 hcl.This chemistry video tutorial explains how to draw the lewis structure of H2SO4 - Sulfuric Acid.Chemistry - Basic Introduction: https://ww....