This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Draw the Lewis structures of C2H6, C2H4, and C2H2.Draw the molecules by placing atoms on the grid and connecting them with bonds. Include all hydrogen atoms. Draw the Lewis structures of C2H6, C2H4, and C2H2.The Lewis structure of C 3 H 4 contains three carbon atoms connected successively with double bonds, with two hydrogen atoms attached to each terminal carbon atom:. Complete the sentences to describe the bonding and geometry of C 3 H 4 using a valence approach.. Match the words in the left column to the appropriate blanks in the …Figure 2.2.1 2.2. 1: Lewis dot structure of atoms comprising ammonia and the dot structure of the molecule. (Kathryn Haas; CC-NC-BY-SA) The drawing of Lewis electron-dot structures is guided largely by the octet rule: that atoms form bonds to achieve eight electrons in their valence shell. For many elements, a full valence shell has an electron ...John Lewis was not just a civil rights icon; he was also a remarkable leader who left a lasting impact on those around him. His dedication to justice, his unwavering commitment to ...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, each hydrogen atom now has a full valence shell of two electrons. Chemists usually indicate a bonding pair by a single ...You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: 3. Draw the Lewis dot structure for each of the following compounds a) NCl3 b) SCl4 c) C3H4 d) S3O2 2- (one central atom) 3. Draw the Lewis dot structure for each of the following compounds. Here’s the best way to solve it.To find formal charges in a Lewis structure, for each atom, you should count how many electrons it "owns". Count all of its lone pair electrons, and half of its bonding electrons. The difference between the atom's number of valence electrons and the number it owns is the formal charge. For example, in NH 3, N has 1 lone pair (2 electrons) and 3 ...Click here:point_up_2:to get an answer to your question :writing_hand:no of double bonds present in the lewis structure ofc34 isThere are three structural isomers of C3H4, propadiene, propyne, and cyclopropene. They all have at least one double bond between carbon atoms, and one has triple bonds between carbon atoms. Refer to the diagrams below. The diagram below represents the structural formula of propadiene. The diagram below represents the structural formula propyne.Problem 94. Textbook Question. Textbook Question. The compound C3H4 has two double bonds. Describe its bonding and geometry, using a valence bond approach. Verified Solution. This video solution was recommended by our tutors as helpful for the problem above. Video duration: 1m.The CH4 Lewis structure represents the arrangement of electrons in a methane molecule. Methane is a simple organic compound that consists of one carbon atom and four hydrogen atoms. The Lewis structure shows the position of all valence electrons in the molecule and is an important tool for predicting the shape and reactivity of the molecule.Topics discussed include drawing a Lewis Dot Diagram for Atoms, and the Octet Rule. (Watch on YouTube: Dot ... Filed Under: Organic Chemistry Tutorial Videos Tagged With: intro to orgo, lewis dot diagram, lewis dot structure, octet rule. Comments. sankalp says. July 21, 2018 at 12:27 pm. Thank you so much. Reply. Courtney Charles says. December ...Draw a Lewis structure for the N, N-dimethylformamide molecule. Draw the Lewis structure for SeCl_4. Draw the Lewis structure for C3H4. Draw the Lewis structure and Molecular model for CH_2NH_2. Draw Lewis structure for {AsO_3}^{3-}. Draw a Lewis structure for C_4H_8CHCH_2. Draw the Lewis structure of H_2O. Draw the Lewis structure for H2O.Question: Given the Lewis structure for the molecule CH2CHCH3. How many sigma and pi bonds does it contain? Group of answer choices 8 σ, 2 π 7 σ, 2 π 9 σ, 0 π 9 σ, 1 π 8 σ, 1 π Consider the structure below, which bond (s) does/do not allow free rotation? Group of answer choices Both 1 and 2 Only 2 Only 1 Only 3 All three Identify each.Steps of drawing CH3- lewis structure Step 1: Find the total valence electrons in CH3- ion. In order to find the total valence electrons in CH3- ion, first of all you should know the valence electrons present in carbon atom as well as hydrogen atom. (Valence electrons are the electrons that are present in the outermost orbit of any atom.). Here, I'll tell you how you can easily find the ...Draw the Lewis structure for C3H4. Draw the Lewis structure of the compound,(C2N2)? Draw the Lewis structure for i) CO ii) XeF4 iii) PCl3; Draw the Lewis structure for CO. Draw the Lewis structure for NH2OH. Draw Lewis structure for: a. CO b. AsF6; Draw the Lewis structure of H_2Te. Draw the Lewis structure for ClF2-. Draw Lewis structure of C ...The carbon-carbon bond lengths for propyne (C3H4), an alkyne, are illustrated in the following figure:What is the hybridization of each carbon atom in propyne from left to right? ... Bonding & Molecular Structure (0) Worksheet. Lewis Dot Symbols (0) Chemical Bonds (0) Dipole Moment (0) Octet Rule (0) ... Lewis Acids and Bases (0) The pH Scale ...Draw the Lewis structure for C3H4. Draw the Lewis structure for SiCl2Br2. Draw the Lewis structure for SiCl_2Br_2. Draw the Lewis structure for BrF_5. Draw Lewis structure for the AsCl_6^-. Draw the Lewis structure for CH2I2. Draw the Lewis structure for CO. Draw the Lewis structure for i) CO ii) XeF4 iii) PCl3; Draw the Lewis structure for SiF62-.Unlike O 3, though, the actual structure of CO 32− is an average of three resonance structures. 1. Because carbon is the least electronegative element, we place it in the central position: 2. Carbon has 4 valence electrons, each oxygen has 6 valence electrons, and there are 2 more for the −2 charge.When it comes to decorating your home, lighting is one of the most important elements. A table lamp can be a great way to add a touch of style and personality to any room. At John ...Steps of drawing C3H8 lewis structure Step 1: Find the total valence electrons in C3H8 molecule. In order to find the total valence electrons in a C3H8 molecule, first of all you should know the valence electrons present in carbon atom as well as hydrogen atom. (Valence electrons are the electrons that are present in the outermost …There are three structural isomers of C3H4, propadiene, propyne, and cyclopropene. They all have at least one double bond between carbon atoms, and one has triple bonds between carbon atoms. Refer to the diagrams below. The diagram below represents the structural formula of propadiene. The diagram below represents the …Draw an acceptable Lewis structure for the molecular ion (radical cation) formed from this molecule when it is bombarded by high-energy electrons in a mass spectrometer. NH2 • In cases where there is more than one answer, just draw one. Include all valence lone pairs in your answer. • Include all valence radical electrons in your answer.Write the Lewis structure for each molecule. These molecules do not follow the octet rule. (a) $\mathrm{CO}$ (b) NO (c) $\mathrm{BF}_{3}$ 12:41. Write Lewis structures that obey the octet rule (duet rule for H) for each of the following molecules. Carbon is the central atom in $\mathrm{CH}_{4}…Step #1: Calculate the total number of valence electrons. Here, the given molecule is CI4. In order to draw the lewis structure of CI4, first of all you have to find the total number of valence electrons present in the CI4 molecule. (Valence electrons are the number of electrons present in the outermost shell of an atom).The CH4 Lewis structure, which consists of one carbon and four hydrogen atoms connected by a single covalent bond, makes it the most basic alkane. It is a mixture of saturated hydrocarbons. With four hydrogen atoms around the central carbon atom, its chemical structure resembles a tetrahedron.Propyne ( methylacetylene) is an alkyne with the chemical formula CH3C≡CH. It is a component of MAPD gas —along with its isomer propadiene (allene), which was commonly used in gas welding. Unlike acetylene, propyne can be safely condensed. [3]Problem sets built by lead tutors Expert video explanations. 1. A Review of General Chemistry 5h 9m. Write Lewis structures for the following molecular formulas. Circle any lone pairs (pairs of nonbonding electrons) in the structures. C3H6 (one double bond) C3H4 (two double bonds) C3H4 (one triple bond)If you’re in the market for new curtains, there’s no better time to find a great deal than during the John Lewis curtains sale. As one of the leading retailers in the UK, John Lewi...I quickly take you through how to draw the Lewis Structure of CH3CCH (Propyne) . I also go over hybridization, shape and bond angles.In the lewis structure of carbonic acid (H 2 CO 3 ), carbon atom is the center atom and there are two -OH groups. Also, there is one double bond between carbon and oxygen atoms. As some molecules. there are no lone pairs on carbon atom. From H 2 CO 3 lewis structure, we can say H 2 CO 3 is a dibasic acid. In this tutorial, we will cover how to ...The total number of valence electrons in the ethane (C2H6) Lewis dot structure is 14. The molecular geometry or shape of C 2 H 6 is identical to its ideal electron pair geometry i.e., tetrahedral. The bonded atoms form a mutual bond angle of 109.5°. The central C-atoms have sp 3 hybridization in C 2 H 6.Viết công thức Lewis của C3H4 dựa theo công thức phân tử và electron hoá trị. Tiến hành theo các bước sau: Bước 1: Tính tổng số electron hóa trị trong phân tử. C có 4 electron hóa trị, H có 1 electron hóa trị. Trong phân tử C 3 H 4, có 3 nguyên tử C và 4 nguyên tử H. Vậy tổng số ...Include all hydrogen atoms and nonbonding electrons. The compound C3H4 has two double bonds. Draw its Lewis structure. Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all hydrogen atoms and nonbonding electrons. Introductory Chemistry For Today. 8th Edition. ISBN: 9781285644561.Our expert help has broken down your problem into an easy-to-learn solution you can count on. Question: Allene (C3H4) has the following Lewis structure. C-C-C What are the hybridization of the carbon atoms from left to right? Do all the hydrogen atoms lie in the same plane? sp, sp2, sp: yes sp2, sp, sp2: yes sp3, sp2, sp3: yes sp, sp2, sp; no ...The Lewis structure of C 3 H 4 contains three carbon atoms connected successively with double bonds, with two hydrogen atoms attached to each terminal carbon atom. Part B Complete the sentences to describe the bonding and geometry of C 3 H 4 , using a valence bond approach Match the words in the left column to the appropriate blanks in the ...Answer the questions below about the highlighted atom in this Lewis structure: H :0: H-C-C-0-H .! In how many sigma bonds does the highlighted atom participate? In how many pi bonds does the highlighted atom participate? x I ? What is the orbital hybridization of the highlighted atom? Humans have three types of cone cells in their eyes, which are.The strength of ionic bonding depends on the magnitude of the charges and the sizes of the ions. 10.3: Lewis Structures of Ionic Compounds- Electrons Transferred is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts. The tendency to form species that have eight electrons in the valence shell is called ...Allene. Molecular Formula CH. Average mass 40.064 Da. Monoisotopic mass 40.031300 Da. ChemSpider ID 9642.PROBLEM 4.2.4 4.2. 4. Methanol, H 3 COH, is used as the fuel in some race cars. Ethanol, C 2 H 5 OH, is used extensively as motor fuel in Brazil. Both methanol and ethanol produce CO 2 and H 2 O when they burn. Write the chemical equations for these combustion reactions using Lewis structures instead of chemical formulas.(A) Draw The Lewis Structure For C3H4 Where Each Terminal Cis Bonded To 2 Hydrogen Atoms. For Each Carbon Atom, Give The Molecular Geometry And Hybridization. (4 Pts) (B) Now Draw The Structure For C3H4 Using Valence Bond Theory To Depict All...Draw the Lewis structure for NO43-. Draw the Lewis structure for CH_2S. Draw the Lewis structure for GeO_2. Draw the Lewis structure for the C atom. Draw the Lewis structure for P 4 . Draw the Lewis structure for C3H4. Draw the Lewis structure for SO32-. Draw the Lewis Structure of BeO2 2-. Draw the Lewis structure for XeF_4.Allene (C3H4) has the following Lewis structure. Questions - Greatassignmenthelp.com. Allene (C3H4) has the following Lewis structure. Allene (C3H4) has the following Lewis structure. Posted January 27, 2024. in Uncategorized. by Jacob morgan. Tags: Comments. Leave a Reply Cancel reply. Your email address will not be published. ...Question: The compound C3H4 has two double bonds. There are two hydrogen atoms linked to the first and the last carbon in this molecule. Draw its Lewis structure. Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all hydrogen atoms and nonbonding electrons. Here's the best way to solve it.Chemistry questions and answers. Draw the Lewis structure for the molecule C3H4. How many sigma and pi bonds does it contain? Draw the Lewis structure for the molecule C3H4. How many sigma and pi bonds does it contain? 8 sigma, 2 pi 10 sigma, 2 pi 6 sigma, 2 pi 8 sigma, 0 pi 7 sigma, 0.John Lewis was not just a civil rights icon; he was also a remarkable leader who left a lasting impact on those around him. His dedication to justice, his unwavering commitment to ...Steps of drawing C3H8 lewis structure Step 1: Find the total valence electrons in C3H8 molecule. In order to find the total valence electrons in a C3H8 molecule, first of all you should know the valence electrons present in carbon atom as well as hydrogen atom. (Valence electrons are the electrons that are present in the outermost …Draw the Lewis structure for C3H4. Draw the Lewis structure for SiCl2Br2. Draw the Lewis structure for SiCl_2Br_2. Draw the Lewis structure for BrF_5. Draw Lewis structure for the AsCl_6^-. Draw the Lewis structure for CH2I2. Draw the Lewis structure for CO. Draw the Lewis structure for i) CO ii) XeF4 iii) PCl3; Draw the Lewis structure for SiF62-.Lewis Structures. Page ID. A Lewis Structure is a very simplified representation of the valence shell electrons in a molecule. It is used to show how the electrons are arranged around individual atoms in a molecule. Electrons are shown as "dots" or for bonding electrons as a line between the two atoms. The goal is to obtain the "best" electron ...Structural Formula. C 3 H 4. alleneThe Lewis structure of C2, the chemical formula for diatomic carbon, is written with two Cs connected by two straight lines. Each C also contains one pair of dots, for a total of t...Cyclopropene is an organic compound with the formula C3H4. It is the simplest cycloalkene. Because the ring is highly strained, cyclopropene is difficult to prepare and highly reactive. This colorless gas has been the subject for many fundamental studies of bonding and reactivity. [2]A step-by-step explanation of how to draw the HNO3 Lewis Structure (Nitric Acid). The HNO3 Lewis structure is best thought of as the NO3 with an H attache...10:55 minutes. Problem 1h Wade - 9th Edition. Textbook Question. Write Lewis structures for the following molecular formulas. Circle any lone pairs (pairs of nonbonding …Ethene is the formal IUPAC name for H 2 C=CH 2, but it also goes by a common name: Ethylene. The name Ethylene is used because it is like an ethyl group ( CH2CH3 C H 2 C H 3) but there is a double bond between the two carbon atoms in it. Ethene has the formula C2H4 C 2 H 4 and is the simplest alkene because it has the fewest carbons (two ...Draw the Lewis structure for C3H4. Draw the Lewis dot structure for HOCN, CF_2Cl_2, SeF_6, H_2CO. Draw Lewis structure for NH_2. Draw the Lewis structure for H3COCH3. For 1,3-dichloro-2-butene, draw the structure of one isomer. Draw the Lewis structure and structural formula for HCN. Draw the Lewis dot structure for HgCl2.Question: Draw one valid Lewis structure (including all lone pair electrons and any formal charges) for the molecular formula C3H4. Assume the atoms are arranged as shown below.,H,H,C,C,C,H,H, Draw one valid Lewis structure ( including all lone pair electrons and any formal charges ) for the molecular formula C 3909. Alkynes are organic molecules made of the functional group carbon-carbon triple bonds and are written in the empirical formula of CnH2n−2 C n H 2 n − 2. They are unsaturated hydrocarbons. Like alkenes have the suffix -ene, alkynes use the ending -yne; this suffix is used when there is only one alkyne in the molecule.442 subscribers. 1.3K views 3 years ago Gen. Chem. 1. how to determine the lewis dot structure of a covalent molecule: C3H4 The following link is a PDF copy of the notes created during this...Draw Lewis structures for the following molecular formulas: C 2 H 4 (one double bond), C 4 H 6 (two double bonds), and C 4 H 6 (one triple bond). Mark all non-bonding electrons in each structure.Correct Correct Wrong. CCl 4 (A refrigerant) C 2 H 6 (Ethane) CHClCH (Bad layout, hydrogen and chlorine are central atoms) Note: Electronegativity values: C = 2.55; Cl = 3.16; H = 2.20. Step 2: Add up the valence electrons for each atom in the molecule. For example, H 2 O 2 H: 2 x 1 electron = 2 electrons. 1 O: 1 x 6 electrons = 6 electrons.Introduction. Observe the following drawings of the structure of Retinol, the most common form of vitamin A. The first drawing follows the straight-line (a.k.a. Kekulé) structure which is helpful when you want to look at every single atom; however, showing all of the hydrogen atoms makes it difficult to compare the overall structure with other similar molecules and makes it difficult to focus ...If we have a molecule with the molecular formula C3H4 (expanded connectivity H3CCCH), what is the hybridization of the middle carbon in the structure? 1. sp 2. sp² 3. sp³ 4. sp³d 5. sp³d² 02 01 04 05 03 ... Draw the Lewis structure for 1, 1-dimethylhydrazine [(CH3)2NNH2, a compound used as a rocket fuel]. What: is the hybridization for the ...Steps. To properly draw the C 3 H 6 Lewis structure, follow these steps: #1 Draw a rough sketch of the structure. #2 Next, indicate lone pairs on the atoms. #3 Indicate formal charges on the atoms, if necessary. #4 Minimize formal charges by converting lone pairs of the atoms.Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. Isotopologues: Propyne-3,3,3-d1; Propyne-d4; Other names: Methylacetylene; 1-Propyne; Allylene; Propine; CH3C≡CH; Acetylene, methyl- Permanent link for this species. Use this link for ...How can I write the Lewis electron dot structure of allene C3H4, simple method for writing the Lewis structure of allene C3H4, structure de Lewis de allene, lewis structure for c3h4, allene structure. Chemistry Net This chemistry blog is aimed mainly at senior high school students or first year university students. ...Steps of drawing CH3- lewis structure Step 1: Find the total valence electrons in CH3- ion. In order to find the total valence electrons in CH3- ion, first of all you should know the valence electrons present in carbon atom as well as hydrogen atom. (Valence electrons are the electrons that are present in the outermost orbit of any atom.). Here, I'll tell you how you can easily find the ...Allene (C3H4) is an organic compound in which central carbon has double bonds with each of its two adjacent carbons. (a) Draw the Lewis diagram for this molecule and give the hybridization of eath carbon atom. And calculate the angles of each bond approximately. (3 point) (b) Draw the 3-D structure of this molecule by using hybridization ...This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Question 30 0.5 pts Draw the Lewis structure for the molecule C3H4. How many sigma and pi bonds does it contain? A) 7 sigma, o pi B) 8 sigma, opi C) 6 sigma, 2 pi D) 10 sigma, opi E) 8 sigma, 2 pi ОА B Ос ОЕ.Are you looking for a comfortable and stylish recliner to add to your home? Look no further than the John Lewis recliner. This high-quality recliner is designed to provide you with...Q-Chat. Created by. krisrea29 Teacher. Things to remember 1. Carbon (C) will always be the central atom and Hydrogen (H) will never be the central atom 2. In other cases choose the element that is the least electronegative (farthest to the left) on the periodic table. 3. Draw the Lewis structure, then ID shape and polarity.(b) Lewis Structure (showing all valence electrons) (c) Electron Geometry of the molecule (include both word and drawing). Use 3-D projections if the molecule is neither linear nor planar. If there are multiple central atoms, be sure that each atom center has the correct shape. Trigonal Bipyramidal (d) Molecular Geometry of the molecule (include both word and drawing).Problem sets built by lead tutors Expert video explanations. 1. A Review of General Chemistry 5h 9m. Write Lewis structures for the following molecular formulas. Circle any lone pairs (pairs of nonbonding electrons) in the structures. C3H6 (one double bond) C3H4 (two double bonds) C3H4 (one triple bond)Steps. To properly draw the C 3 H 6 Lewis structure, follow these steps: #1 Draw a rough sketch of the structure. #2 Next, indicate lone pairs on the atoms. #3 Indicate formal charges on the atoms, if necessary. #4 Minimize formal charges by converting lone pairs of the atoms.This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Allene (C3H4) is an important intermediate in synthesis of many organic compounds. a) Draw a Lewis structure for allene (all carbons are bonded together) b) How many sigma and pi bonds present in this molecule ...A step-by-step explanation of how to draw the BN Lewis Dot Structure (Boron nitride).For the BN structure use the periodic table to find the total number of ...Here's how you can easily draw the C 4 H 6 Lewis structure step by step: #1 Draw a rough skeleton structure. #2 Mention lone pairs on the atoms. #3 If needed, mention formal charges on the atoms. #4 Minimize formal charges by converting lone pairs of the atoms, and try to get a stable Lewis structure.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, each hydrogen atom now has a full valence shell of two electrons.Answer : The Lewis-dot structure of is shown below. The number of sigma and pi-bonds are 6 and 2 respectively. Explanation : 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 the Lewis-dot structure the valance electrons are shown by 'dot'.Key to this theory is the Lewis Structure, which is a very simplified representation of the electrons in a molecule and is use to show how the electrons are arranged around individual atoms in a molecule. Between 1916 and 1919, Gilbert Newton Lewis, Walther Kossel, and Irving Langmuir formulated a theory to explain chemical bonding. ...Learn how to draw the Lewis structure for C3H4 (ethylene) step by step with examples and explanations. Find out the valence electrons, lone pairs, formal charges, and octet rule for C3H4.Click here:point_up_2:to get an answer to your question :writing_hand:no of double bonds present in the lewis structure ofc34 isThe alkynes comprise a series of carbon‐ and hydrogen‐based compounds that contain at least one triple bond. This group of compounds is a homologous series with the general molecular formula of C n H 2 n‐‐2 , where n equals any integer greater than one.. The simplest alkyne, ethyne (also known as acetylene), has two carbon atoms and the molecular formula of C 2 H 2.A molecular structure in which all formal charges are zero is preferable to one in which some formal charges are not zero. If the Lewis structure must have nonzero formal charges, the arrangement with the smallest nonzero formal charges is preferable. Lewis structures are preferable when adjacent formal charges are zero or of the opposite sign.Learn how to draw the Lewis structure of C3H4 with three carbon atoms connected by double bonds and two hydrogen atoms each. Also, describe the bonding and geometry of C3H4 using a valence bond approach and match the words in the sentences.Allene. Molecular Formula CH. Average mass 40.064 Da. Monoisotopic mass 40.031300 Da. ChemSpider ID 9642.Propene and higher alkenes. The pi-molecular orbitals in propene (CH 3-CH=CH 2) are essentially the same, This problem has been solved! You'll get a de, Step 4: Substitute Coefficients and Verify Result. Count the number of atoms of each element on each, ANSWER-1 C-C BOND LENGTH FOR ETHANE IS HIGHEST, LE, Board index Chem 14A Molecular Shape and Structure Determining Molecular Shape (VSEPR, VIDEO ANSWER: We need to draw the Lewis structure for C3H4 and then tell stud, Steps. Use these steps to correctly draw the IBr 2– Lewis structure: #1, Each Lewis dot diagram fills the outer shell of each atom wit, how to determine the lewis dot structure of a covalent , 5. In summary, the compound C3H4 has a linear geometry around the , Steps for Writing Lewis Structures. Example 7.4.1 7.4. 1. , These formulas have the appearance of a Lewis structure f, Draw c3h4 lewis structure. Verified solution by a Proprep tutor. Rel, The CH4 Lewis structure, which consists of one carbon and four, We are given the molecule of CHCCH A 3. We have to draw its Le, Describe its bonding and geometry using a valence bond approa, what is C3H4 lewis structure, electronic geometry of each carbon , Structure; Advanced; History; Matches any text strings used to .