a. P-Cl e. -1 charge, gains 1 electron, 6.4 State the number of electrons lost or gained when the following elements form ions: c. nitrogen , Will give 100 points! d. tin(II) chloride, 6.25 Write the formula for each of the following ionic compounds: Boric acid will initially decompose into steam, (H2O( g )) and metaboric acid (HBO2) at around 170 C, and further heating above 300 C will produce more steam and diboron trioxide. A somewhat oversimplified way to describe the bonding in a metallic crystal is to depict the crystal as consisting of positively charged nuclei in an electron sea (Figure \(\PageIndex{6}\)). e. cesium and magnesium b. cesium Cations tend to be smaller due to the slight postive charge of the ions, which pulls the electrons closer to nucleus and is a result of losing an electron. a. oxygen difluoride You can specify conditions of storing and accessing cookies in your browser, Choose 1 type of electromagnetic wave. b. oxygen and bromine The attractive interaction in a hydrogen bond typically has a strong electrostatic contribution, but dispersion forces and weak covalent bonding are also present. c. SO3, Potassium phosphide Crystalline solids fall into one of four categories. c. I-, needed for thyroid function The ease with which metals can be deformed under pressure is attributed to the ability of the metal ions to change positions within the electron sea without breaking any specific bonds. Both of these compounds were found to be partly covalent and partly ionic, and bonding was described in terms of bonds in B 2 O 3, and and bonds in BN. forms bonds by sharing electrons. d. chlorate, 6.33 Name the following polyatomic ions: b. CO3^2- f. Mercury (II) chloride, Write the symbol for the cation in each of the following ionic compounds: Discharge from yeast infections doesnt usually have a strong smell but may look like cottage cheese. Tetraphosphorus pentasulfide Tetraphosphorus pentasulfide is the name of the compound of the given formula P4S5 . Magnitude measures the energy re polar covalent, which scores greater than .4 but less than 1.8. non metals, because they are more attracted to electrons than metals. b. potassium phosphide a. Cl Colorless, semitransparent lumps or hard, white, odorless crystals. Page Exercise 2: Naming Chemical Compounds Data Table 2. B only 6. Compound Name 1 B2O3 2 N2O 3 LiCl 4 N2O4 This problem has been solved! BaBr 2 is a binary ionic compound. 109 degrees angles always exist. We expect C6(CH3)6 to have the lowest melting point and Ge to have the highest melting point, with RbI somewhere in between. c. Ba3(PO4)2 a. BrF b. KCl d. Cl2, a. polar dipole dipole attraction c. lead (IV) iodide c. Zn2+ b. Consist of two or more nonmetals that share one or more valence electrons, resulting in a covalent bond covalent bond For example, sodium chloride melts at 801 C and boils at 1413 C. c. sodium The reactions are: Boric acid goes to anhydrous microcrystalline B2O3 in a heated fluidized bed. The slipperiness of graphite is enhanced by the introduction of impurities. Laboratory Chemical Safety Summary (LCSS) Datasheet, SELENIUM HEXAFLUORIDE 7783-79-1 selenium(VI) fluoride UNII-H91D37I668 Selenium fluoride (SeF6), (OC-6-11)- More, Pay attention to vaginal hygiene. There will never be an earthquake in the "lowest hazard" location in the future. c. Cu2S Write the formula for the molecular compound iodine pentafluoride. Boron trioxide is produced by treating borax with sulfuric acid in a fusion furnace. d. SnCl2, a. gold chloride 1 Compounds that do not contain ions, but instead consist of atoms bonded tightly together in molecules (uncharged groups of atoms that behave as a single unit), are called covalent compounds. Valence electrons are the electrons located in the outermost shell of an atom, not only do they determine chemical properties of an atom, they are the ones with the ability to form bonds and thus form compounds. To classify solids as ionic, molecular, covalent (network), or metallic, where the general order of increasing strength of interactions. b. How are valence electrons different form the rest of the electrons of an element? Ionic solids tend to have high melting points and are rather hard. 1. linear 2. bent 109 3. trigonal planar 4. bent 120 5. trigonal pyramidal 6. tetrahedral This is the element aluminum and has 13 protons and 10 electrons. At temperatures above 750C, the molten boron oxide layer separates out from sodium sulfate. e. Mn2+, a. d. dinitrogen tetroxide, 6.49 Write the formula for each of the following molecular compounds: For example, the average oxygen coordination number in v-B2O3 at 1 atm is 2 [the average cation coordination number (3) 2/3]. a. H2S Determine whether each of the following compounds is likely to exist as a molecule, or as an ionic compound. LiCl c. Ba3N2 when 2 lone pairs exist, a bent shape forms. Silver nitrate Silver nitrate is an inorganic compound with chemical formula AgNO3. c. Li+ and S2- BV isnt considered a sexually transmitted disease (STD). Explain. It contains planar networks of six-membered rings of sp2 hybridized carbon atoms in which each carbon is bonded to three others. Paul Flowers (University of North Carolina - Pembroke),Klaus Theopold (University of Delaware) andRichard Langley (Stephen F. Austin State University) with contributing authors. As a general rule of thumb, compounds that involve a metal binding with either a non-metal or a semi-metal will display ionic bonding. They treated them with a 600-mg boric acid vaginal suppository twice a day for 60 days, which cleared the infection. As a result, the melting points of the metals increase to a maximum around group 6 and then decrease again from left to right across the d block. The National Seismic Hazard Map classified one location as having the highest hazard and another location as having the lowest hazard. Based on this classification, which conclusion can you draw between the "highest hazard" and "lowest hazard" locations? 4. c We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. To understand the correlation between bonding and the properties of solids. draw lewis structure then determine number of electron groups. c. dinitrogen trioxide The name is a tribute to the American architect R. Buckminster Fuller, who is famous for designing and constructing geodesic domes which bear a close similarity to the structure of C60. Br = bromine. e. Cu3P Write the name for the compound with the formula Mn2S3. d. radium, a. Cl- Chloride It is also very soft; the layers can easily slide past one another because of the weak interlayer interactions. The root name of bromine is brom-. Boric acid and its sodium salts can be used to control a wide variety of pests. Why might C60 make a good lubricant? Because Zn has a filled valence shell, it should not have a particularly high melting point, so a reasonable guess is C6(CH3)6 < Zn ~ RbI < Ge. Create flashcards for FREE and quiz yourself with an interactive flipper. a. carbon tetrachloride d. Cs The entire solid is an "endless" repetition of carbon atoms bonded to each other by covalent bonds. Atoms are the smallest units of matter that still retain the fundamental chemical properties of an element. these polyatomic ions can exist in a ionic compound as well. Arrange the solids in order of increasing melting points based on your classification, beginning with molecular solids. These sheets are then stacked to form graphite. : TWA 15 mg/m 3. e. Cs+ and I-, Write the symbols for the ions, and the correct formula for the ionic compound formed by each of the following: d. Ga3+, O2-; Ga2O3, 6.16 Write the symbols for the ions, and the correct formula for the How do they differ? Classify Ge, RbI, C 6 (CH 3) 6, and Zn as ionic, molecular, covalent, or metallic solids and arrange them in order of increasing melting points. National Library of Medicine. The C60 molecule (Figure \(\PageIndex{4}\); left), is called buckminsterfullerene, though the shorter name fullerene is often used. [15], The crystalline form (-B2O3) is exclusively composed of BO3 triangles. b. dichlorine oxide a. -3 charge, gains 3 electrons Covalent bonds share an electron, while ionic bonds transfer the electrons; results in an electron gained or loss, and the overall charge being slightly negative or positive (cation+ or anion-). The amorphous form (g-B2O3) is by far the most common. b. sodium hydrogen sulfate It is inexpensive and available over the counter in small, clear gelatin capsules (called boric acid vaginal suppositories) that are inserted intravaginally, often with the help of an applicator. The most stable form of carbon is graphite. Phosphorus sesquisulfide, free from yellow and white phosphorus appears as a yellow crystalline solid. Exercise 2: Naming Chemical Compounds Data Table 2. B2O3 With B 2 O 3 in a glaze you can make it melt at almost any common kiln temperature you want, and get a brilliant finish that will not craze. what are some common intermolecular attractions? H2 is consist of two atoms of the same element, which makes the electronegativity difference 0, resulting in equal sharing of electrons. made up of 2+ nonmetals. Compounds can be classified as ionic or covalent. National Institute for Occupational Safety and Health, "Boroxol rings from diffraction data on vitreous boron trioxide", "Liquid B2O3 up to 1700K: X-ray diffraction and boroxol ring dissolution", "Crystal Growth Kinetics of Boron Oxide Under Pressure", "Structural transformations in liquid, crystalline and glassy B, National Pollutant Inventory: Boron and compounds, CDC - NIOSH Pocket Guide to Chemical Hazards - Boron oxide, https://en.wikipedia.org/w/index.php?title=Boron_trioxide&oldid=1129478170, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles with unsourced statements from December 2022, Creative Commons Attribution-ShareAlike License 3.0, The inert capping layer in the Liquid Encapsulation Czochralski process for the production of, This page was last edited on 25 December 2022, at 16:03. Ionic . a. Al is a metal, O is a nonmetal Lithium Selenide Potassium Oxide K2O HBr Hydrogen Bromide Diboron Trioxide B2O3 Ionic or Covalent: K2O Ionic Ionic or Covalent: B2S3 Covalent What is the name of B2S3? Classify Ge, RbI, C6(CH3)6, and Zn as ionic, molecular, covalent, or metallic solids and arrange them in order of increasing melting points. c. silcon dioxide Graphite is very slippery and is often used in lubricants. the greater the electronegativity difference between two atoms, the greater the attraction, thus the stronger the bond. 2. b H requires only two valence electrons. It would be written, Li3N. What is the new water level in the cylinder (see Table 2.9)? The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties. d. Impossible, noble gases do not form ionic compounds, they are already stable and have appropriate electron configuration of 8 c. -1 charge, gains 1 electron . I am currently continuing at SunAgri as an R&D engineer. b. non polar covalent b. iron (III) oxide b. magnesium phosphate Boron trioxide c. Na+, P3-; Na3P The categories are distinguished by the nature of the interactions holding the discrete molecules or atoms together. A boron oxide with formula B2O3. c. N-N Thus, the compound formed from sodium and chlorine will be ionic (a metal and a non-metal). 6. a. how does the strength of bonds affect melting points of compounds? lone pair electrons, single bonds, double bonds, and triple bonds. If dipole do not cancel each other out. e. magnesium oxide Terms in this set (28) forms bonds by transferring electrons. b. KP c. potassium and oxygen The structure of crystalline quartz (SiO2), shown in Section 12.1, can be viewed as being derived from the structure of silicon by inserting an oxygen atom between each pair of silicon atoms. c. ammonium chloride In the diamond structure, all bonds are single covalent bonds (\(\sigma\) bonds). d. phosphorous pentachloride c. SiO2 N2O b. copper(II) Metallic bonds tend to be weakest for elements that have nearly empty (as in Cs) or nearly full (Hg) valence subshells, and strongest for elements with approximately half-filled valence shells (as in W). In which type of molecules do dipoles occur? Boric acid may help people with recurrent BV restore their vaginal pH. An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. N2O b. b. a. B2O3 Boron (^+3) + Oxygen (^2-) = two non metals DiBoron trioxide P2O5 Phosphorus (5+) + Oxygen (2-) Diphosphorus Penta Oxide (O2) Compounds, Ionic or Covalent A compound is usually -Ionic if the first element in the formula or the name is metal or the polyatomic ion NH4 (+) K2O: K is a metal; the compounds is ionic: potassium oxide Self-healing rubber is an example of a molecular solid with the potential for significant commercial applications. e. Selenium hexaflouride, 6.47 Write the formula for each of the following molecular compounds: The enthalpies of fusion also increase smoothly within the series: benzene (9.95 kJ/mol) < naphthalene (19.1 kJ/mol) < anthracene (28.8 kJ/mol). does not occur in non polar or ionic bonds. Boron trioxide has three known forms, one amorphous and two crystalline. Hydrogen bonding is a term describing an attractive interaction between a hydrogen atom from a molecule or a molecular fragment XH in which X is more electronegative than H, and an atom or a group of atoms in the same or a different molecule, in which there is evidence of bond formation. 6.31 Write the formula including the charge for each of the following polyatomic ions: Graphite may also be regarded as a network solid, even though there is no bonding in the z direction. Ionic compounds are solids that typically melt at high temperatures and boil at even higher temperatures. c. C-O e. potassium iodide The compound B2O3 is molecular. Which atoms are most likely to form double and triple bonds? a. Si-Br Page Exercise 2: Naming Chemical Compounds Data Table 2. What is the formula for ionic compound formed between B and O? How are P waves different from S waves? c. CCl4 never exist alone. It tells about the shape and characteristics of a signal in the form of a wave. The atoms of a polyatomic ion are tightly bonded together and so the entire ion behaves as a single unit. c. polar covalent a. hydrogen carbonate (bicarbonate) contraction, nerve impulses This page titled 3.4: Identifying Molecular and Ionic Compounds is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Paul R. Young (ChemistryOnline.com) via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request. b. Al has 3, O has 6 Mg2+, Magnesium (As a comparison, the molecular compound water melts at 0 C and boils at 100 C.) e. cadmium Bromide d. OH-. Shape has an affect on how molecules interact with enzymes, antibiotics, or produce our sense of taste and smell. ionic. The tendency for two or more elements to combine and form a molecule that is stabilized by covalent bonds (a molecular compound) can be predicted simply by the location of the various elements on the periodic table. D. Magnitude measures the energy released by the earthquake, while intensity measures its duration. Graduated from ENSAT (national agronomic school of Toulouse) in plant sciences in 2018, I pursued a CIFRE doctorate under contract with SunAgri and INRAE in Avignon between 2019 and 2022. # Formula Molecular or Ionic Compound? Instead, the valence electrons are delocalized throughout the crystal, providing a strong cohesive force that holds the metal atoms together. The laundry aisle at grocery stores and big-box stores, such as Wal-Mart. dispersion forces which occur in non polar covalent bonds, then dipole-dipole attractions, followed by hydrogen bonding. c. phosphorus trichloride A chemical bond that involves sharing a pair of electrons between atoms in a molecule. 9 protons, 10 electrons An antacid called Amphojel contains aluminum hydroxide, which treats acid indigestion and heartburn. Molecular compounds are the most common amongst the two. 6.81 Identify the major type of attractive force between the particles of each of the following: Among other applications, it is being studied for its use in adhesives and bicycle tires that will self-heal. Write the formula for aluminum hydroxide. how many electrons must an atom have on its outer shell to remain stable? Greek prefixes are not used for binary ionic compounds. all angles are 120 degrees. Finally, graphite is black because it contains an immense number of alternating double bonds, which results in a very small energy difference between the individual molecular orbitals. How many protons and electrons are in each of the following ions? a. lithium and chlorine The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a sea of delocalized electrons. The compound is neutral overall. Boric acid In 2015, health professionals treated a female who contracted trichomoniasis many times and was also allergic to metronidazole. linear, they take on a linear shape as well. 6.11 Which of the following pairs of elements are likely to form an ionic compound? Thus, Na2O molecules feature two sodium-oxygen ionic bonds. In what instance are double or triple bonds used for lewis structure? Boron triuoxide, B2O3. Unit 1: Lesson 3. All of these substances are pure carbon. d. Mg2+andF- What is the haplogroup of most African American? This is attraction isn't the strongest, in fact it is the weakest. Eye: Irrigate immediately Skin: Water flush promptly Breathing: Fresh air Swallow: Medical attention immediately, inhalation, ingestion, skin and/or eye contact, Irritation eyes, skin, respiratory system; cough; conjunctivitis; skin erythema (skin redness), Water [Note: Reacts slowly with water to form boric acid. f. BaF2, a. and three bonded atoms. c. P4S3 b. Li-F Until the mid 1980's, pure carbon was thought to exist in two forms: graphite and diamond. Common polyatomic ions. b. Cl-As Compounds that are composed of only non-metals or semi-metals with non-metals will display covalent bonding and will be classified as molecular compounds. The results of various earlier studies show that boric acid is not readily absorbed through the intact skin. Study Chapter 6: Ionic and Molecular Compounds flashcards. [7] It has many important industrial applications, chiefly in ceramics as a flux for glazes and enamels and in the production of glasses. Normally, electrons are distributed symmetrically, however dispersion forces arise when the electrons accumulate more on one end of a molecule, forming a temporary dipole. B2O3 c. PbI4 BaBr 2 is barium bromide. The partially positive H atom can attract, nitrogen, fluorine and oxygen of other molecules. How can you tell if a molecule would be a polar molecule? -2 charge, gains 2 electrons 2003-2023 Chegg Inc. All rights reserved. Consist of two or more nonmetals that share one or more valence electrons, resulting in a covalent bond. Asked for: classification and order of melting points. Average oxygen coordination number: The average oxygen coordination number in v-B2O3 is equal to the average cation coordination number cation/anion ratio (2/3). For example, cesium melts at 28.4C, and mercury is a liquid at room temperature, whereas tungsten melts at 3680C. b. Which elements are exceptions to the octet rule? The basic unit of the structure consists of oxygen atoms arranged in planar chains of equilateral triangles and containing a centered boron atom. F is flourine, F- is flouride. +2 charge, loses two electrons What characteristics of each wave can you identify from its waveform. d. Pb4+ 2.) Compound Name e. Nitrogen triflouride, 6.44 Name each of the following molecular compounds: Polyatomic ions. b. a molecule with a central atom that has four electron groups Boric acid will initially decompose into steam, (H2O(g)) and metaboric acid (HBO2) at around 170C, and further heating above 300C will produce more steam and diboron trioxide. Electrostatic attractions between two temporarily polarized molecules are called London Dispersion Forces. Partially Molecular and partially ionic In which cases the attractive forces of a solid are broken causing it to change into liquid. The formula of the carbonate ion is CO 32. Molecular Compounds: Usually, molecular compounds are insoluble in water, but are soluble in organic solvents. d. PCl5 H2 has a nonpolar covalent bond, but HCl has a polar covalent bond. Nickel(II) sulfate b. NiSO4 c. N If it is determined that the spiral organ of Corti is the source of the problem, which region of the organ would be defective? What determines the attrac- tion between two H atoms? Se The a layer of the graphite structure consists of a repeating series of rings. d. nitrate, 6.37 Write the correct formula for the following ionic compounds: d. +1 charge, loses 1 electron Two or more elements of an atom are accompanied by a prefix which indicates number of atoms. Secondly, the cation is always written first followed by the anion. It is difficult to deform or melt these and related compounds because strong covalent (CC or SiSi) or polar covalent (SiC or SiO) bonds must be broken, which requires a large input of energy. b. Si-Br Much of the study of chemistry, however, involves looking at what happens . The carbon atoms form six-membered rings. B. Cs+ Cesium Silicon tetrabromide Na 2 O melts as well or better than B 2 O 3, but unlike B 2 O 3, its high thermal . electron groups are arranged as far apart as possible around the CENTRAL atom to minimize the repulsion between their negative charges. A molecular compound consists of molecules whose formula represents the actual number of atoms bonded together in the molecule. What is the name of Cu2O? noble gases in group 8a, these are already stable with 8 valence electrons on outermost shell. Some general properties of the four major classes of solids are summarized in Table \(\PageIndex{2}\). Tetraphosphorus pentasulfide | P4S5 PubChem. f. strontium bromide, 6.19 Write the name for each of the following ions (include the Roman numeral when necessary): C60 (molecular) < AgZn (metallic) ~ BaBr2 (ionic) < GaAs (covalent). You dont need to do much to keep your vaginal area clean. Rules for naming binary ionic compound were discussed in Section 5.5. Zn is a d-block element, so it is a metallic solid. Every lattice point in a pure metallic element is occupied by an atom of the same metal. c. Ba2+ and N3- Consequently, graphite is used as a lubricant and as the lead in pencils; the friction between graphite and a piece of paper is sufficient to leave a thin layer of carbon on the paper. a. O2-, used to build biomolecules and water My thesis aimed to study dynamic agrivoltaic systems, in my case in arboriculture. A coordinate covalent bond is also known as a dative bond, which is a type of covalent bond. [21] Carefully controlled heating rate avoids gumming as water evolves. d. dispersion, Chem Test Chapters 1 & 2 (multiple choice), Med Surge Week 4 Male reproductive problems a, Bruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore E. Brown. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. c. N3- Nitride d. Phosphorous trichloride what is the electron group geometry of a central atom with 3 electron groups and what variations of shapes do molecules form? What are molecular compounds and what is the resulting bond called? c. silver iodide e. N-P It is one of the most difficult compounds known to crystallize. b. Na2S a. SnCl2 stronger forces are intramolecular and they rank non polar covalents, polar covalents, and ionic bonds are the strongest of these all. To learn more about compound B2O3, refer -, This site is using cookies under cookie policy . b. Br-Br b. polar dipole-dipole A 50.0-g silver object and a 50.0-g gold object are both added to 75.5mL75.5 \mathrm{~mL}75.5mL of water contained in a graduated cylinder. L. McCulloch (1937): "A Crystalline Boric Oxide". Write the formula for the molecular compound diboron trioxide, Identify each of the following compounds as ionic or molecular and give its name: National Center for Biotechnology Information . (If teacher says its ionic then that's OK) B2O3 is more. b. sodium sulfide e. carbon monoxide, 6.45 Name each of the following molecular compounds: The study of coordinate. How do you determine shape of a molecule? Easily ignited by friction. a. potassium and sulfur B2O3 has 2 Boron atoms and 3 oxygen atoms. b. impossible, both anions thus it will not be balanced The packing efficiency in metallic crystals tends to be high, so the resulting metallic solids are dense, with each atom having as many as 12 nearest neighbors. boron oxide, diboron trioxide, boron sesquioxide, boric oxide, boria, Except where otherwise noted, data are given for materials in their. which is the only positive polyatomic ion? Formula b. carbon monoxide The actual melting points are C60, about 300C; AgZn, about 700C; BaBr2, 856C; and GaAs, 1238C. Boric anhydride | B2O3 | CID 518682 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. In the compound B2O3, the two boron atoms are bonded together and held by the three oxygen atoms at its sides. The major types of solids are ionic, molecular, covalent, and metallic. Metals are characterized by their ability to reflect light, called luster, their high electrical and thermal conductivity, their high heat capacity, and their malleability and ductility. Binary Molecular and Ionic Compound Names Make sure to give the formal name (with prefixes) not the common name. Write the symbols for the ions, and the correct formula for the ionic compound formed when lithium and nitrogen react. The transfer of energy through the solid by successive collisions between the metal ions also explains the high thermal conductivity of metals. b. Al3+ and Br- c. State the number of electrons that must be lost or gained for each to achieve an octet. d. CsF What is the name of this compound: Li2Se. Identify each as a metal or a nonmetal. Sulfur trioxide, 6.43 Name each of the following molecular compounds: a. PBr3 b. Cl2O c. CBr4 d. HF e. NF3, a. Phosphorous tribromide 235 Since B 2 O 3 is acidic, an acid-base reaction does not take place. Formula Tribromine octoxide Lithium selenide lodine monochloride Nitrogen. Thus Ge is probably a covalent solid. e. MgO Molecular solids are held together by relatively weak forces, such as dipoledipole interactions, hydrogen bonds, and London dispersion forces. Predict the charge on monatomic ions. All four categories involve packing discrete molecules or atoms into a lattice or repeating array, though network solids are a special case. Iron(II) which elements have higher electronegatives and why? Boron Oxide may damage the liver and kidneys. 6.32 Write the formula including the charge for each of the following polyatomic ions: A compound that consists of positive and negative ions, derived from one or more electrons from metals being transferred to non metals. Forms sulfur dioxide and phosphorus pentaoxide during combustion. e. N-P b. dibromine oxide. It has been hypothesized that C60 would make a good lubricant. For example, graphite, the other common allotrope of carbon, has the structure shown in part (b) in Figure \(\PageIndex{1}\). e. Al3+andS2-, a. Na2O (NH4)2S
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