PROBLEM SOLVING IONIC COMPOUND - Calcium iodide. Potassium Iodide Potassium Mon iodide , Hydriodic Acid, Potassium Salt 7681-11- 90% Calcium Stearate None 1592-23- 10% *All concentrations are a percentage by weight unless ingredient is a gas. CaI+. Its chemical formula is CaC2O4 or Ca (COO)2. Calcium Iodide (CaI2)-Flakes The Chemical Abstracts Service registry number is a unique identifier of a particular chemical, designed to prevent confusion arising from different languages and naming systems. For 0.1 mol of thiol, 42 g (25% excess) of 65% calcium hypochlorite (technical grade) is stirred into 200 mL of water at room temperature. Quia - Ionic Compounds - Names and Formulas Calcium ion Iodide ions 3. In other words, the calcium carbonate produced is insoluble. Examples of Ionic Bonds and This means that calcium needs more than 14 times of needed heat to boil water. CuI C. 6. Molar mass of CaI2 = 293.88694 g/mol Convert grams Calcium Iodide to moles or moles Calcium Iodide to grams. The heaviest of the stable halogens, it exists as a semi-lustrous, non-metallic solid at standard conditions that melts to form a deep violet liquid at 114 degrees Celsius, and boils to a violet gas at 184 degrees Celsius.The element was discovered by the French chemist Bernard Courtois in 1811, and was named two … Reaction of bromine and calcium iodide. Chemical equations ... It is also used in cat food as a source of iodine. We formulate Calcium Iodide in complete compliance with the industry standards. CaPO4-YOU MIGHT ALSO LIKE... Chemical Equations 5 Terms. Two forms are known, anhydrous Ca (IO3)2 and the hexahydrate Ca (IO3)2 (H2O). Trade Name: Calcium iodide Chemical Formula: CaI 2 Recommended Use: Scientific research and development Manufacturer/Supplier: LTS Research Laboratories, Inc. Street: 37 Ramland Road City: Orangeburg State: New York Zip Code: 10962 Country: USA Tel #: 855-587-2436 / … Iodide compounds are used in internal medicine. Calcium iodide (CaI2) | CaI2 | CID 66244 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. A(n) (13) used to separate the symbols for hydrogen and oxygen. Its known isotopes are extremely radioactive, and have only been created in a laboratory.The most stable known isotope, copernicium-285, has a half-life of approximately 28 seconds. Its properties are similar to those for related salts, such as calcium chloride. Written ionically: Ca2+(I-)2 or normally written as CaI2, without ionic charges. Individual Protection Measures, Such as Personal Protective Equipment Put a 1 in front of it. Formula and structure: Calcium sulfate chemical formula is CaSO 4 and its molecular weight is 136.34 g mol -1. Chemical properties of calcium oxide are similar to the properties of the basic oxides of other metals. Calcium Phosphate. Lithium Hydrogen Phosphate. sodium bromate. Specifications: Product Name : Calcium Iodide. Thus, we can conclude that mass of is 508.424 g. Feb 24, 2016. Enter an equation of a chemical reaction and click 'Balance'. Moreover, two atoms of the same element do not form chemical compounds as it requires two different elements. Calcium Iodide. xH2O: Molecular Weight: 293.89: Structure: Product Category: Intermediate: Chemical Properties : Appearance: Yellow to red solid. Calcium oxalate (in archaic terminology, oxalate of lime) is a chemical compound that forms envelope-shaped crystals, known in plants as raphides. Calcium iodide ionic 1 calcium ion (Ca2+) 2 io-dide ions (I ) CaI 2 Hydrogen peroxide covalent 2 hydrogen atoms (H) 2 oxygen atoms (O) H 2O 2 Carbon dioxide covalent 1 carbon atom (C) 2 oxy-gen atoms (O) CO 2 There is a different rule for writing the … 2+ I. O. structure . Contact Supplier Request a quote. ››Calcium Iodide molecular weight. Calcium iodide compound. The chemical formula of a compound is a symbolic representation of its chemical composition. N . The chemical or molecular formula of Iodide is I-. PVDF Tables of Chemical Resistance Inorganic Media F 2, gas or liquid HBF 4 H 2SiF 6 N 2H 4•H 2O HBr HCl HCl, gas HF Hl H 2O 2 l 2, dry or moist FeCl 2•4H 2O FeCl 3•6H 2O Fe(NO 3) 3•9H 2O Fe(SO 4) 3 (CH 3COO) 2Pb•3H 2O LiBr MgCO 3•Mg(OH) 2•3H 2O MgCl 2•6H 2O Mg(OH) 2 The reaction produces calcium chloride and oxygen. Calcium Iodide is generally immediately available in most volumes. Its melting point is 779 degrees C. It is easily soluble in acetone and alcohol. NO . Molecular weight calculation: 40.078 + 126.90447*2 ›› Percent composition by element Enter NOREACTION if no reaction occurs. Compounds With Polyatomic Ions Ionic compounds are named by joining the cation and anion names. Molar mass of CaI2 = 293.88694 g/mol Convert grams Calcium Iodide to moles or moles Calcium Iodide to grams. Finally, in potassium nitrate, the charges balance in another 1 : 1 ratio, giving a formula of "KNO"_3 . Specifications of Calcium Iodide: CAS Number 10102-68-8 Linear Formula CaI2 Molecular Weight 293.89 EC Number 233-276-8 Li 2 CrO 4. Casey_Crittenden. Step #1 - Write down the symbol and charge of the first word. • Single Replacement - a metal will replace a less active metal in an ionic compound OR a nonmetal will replace a less active nonmetal. Part C sodium iodide and calcium sulfide Express your answer as a chemical equation. Ullmann's Encyclopedia of Industrial Chemistry. CaHCO3+ Calcium Nitrate ... Calcium Sulfate. Chemical . a chemical equation for this reaction, a(n) (12) is used to separate hydrogen and oxygen from water vapor and energy. Chemical formulae provide insight into the elements that constitute the molecules of a compound and also the ratio in which the atoms of these elements combine to form such molecules. Calcium iodide is an inorganic compound that is made of calcium and iodine. It has a chemical formula CaI 2. Calcium iodide can be formed using either calcium oxide, calcium carbonate or calcium hydroxide with hydrochloric acid. The chemical formula of a compound is a symbolic representation of its chemical composition. Circle the symbol for the metal in each of the compounds in Model 2. Lithium Phosphate. Result = I¯ Step #3 - Use the minimum number of cations and anions needed to make the sum of all charges in the formula equal zero. It is used in photography. Calcium iodide, ultra dry Revision Date 14-Feb-2020 9. Binary compound Formula No. The chemical properties of calcium include its melting point, which is 839.0 +/- 2°C while its boiling point is 1484.0ºC with a valence of 2. the002658. Chemical . Chemistry questions and answers. A major constituent of human kidney stones, the chemical is also found in beerstone, a scale that forms on containers used in breweries. This colourless deliquescent solid is a salt that is highly soluble in water. The entire group 1 metal can react with oxygen to form metal oxide. The radius is 206 picometers approximately. In lead (II) iodide, the charges balance in a 1 : 2 ratio, so the formula is "PbI"_2. Ex) calcium + oxygen ( calcium oxide. Physical and chemical properties Physical State Solid Appearance No information available Odor Odorless Odor Threshold No information available pH No information available Melting Point/Range 784 °C / 1443.2 °F Boiling Point/Range 1100 °C / 2012 °F Flash Point No information available Evaporation Rate Not applicable Sometimes, state symbols are required to indicate the physical states of the substances in a chemical reaction. One formula unit of calcium iodide contains one calcium ion and two iodide ions. ››Calcium Iodide molecular weight. The human body is having 2% calcium and its major sources are milk, milk products, fish, and green leafy vegetables. The two charges balance in a 1 : 1 ratio, so potassium iodide is simply "KI". Its properties are similar to those for related salts, such as calcium chloride. This colourless deliquescent solid is a salt that is highly soluble in water. Calcium iodide 99%; CAS Number: 10102-68-8; EC Number: 233-276-8; Synonyms: Calcium diiodide; Linear Formula: CaI2; find Sigma-Aldrich-590703 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich The oxidation number of calcium in calcium diiodide is 2. This colourless deliquescent solid is a salt that is highly soluble in water. Salt, also called sodium chloride, mineral substance of great importance to human and animal health, as well as to industry. The compound formed will be called calcium iodide. CHEMICAL EQUATIONS I. Calcium iodide (chemical formula CaI2) is the ionic compound of calcium and iodine. The answer will appear below; Always use the upper case for the first character in the element name and the lower case for the second character. Call +91-8048762458. epl, vge, blf, mcz, fnaz, jo8u, rq, ukk, qrzy, ewdo, , vge, blf, mcz, fnaz, jo8u, rq, ukk, qrzy, ewdo, • Decomposition-a single compound decomposes into two or more elements or smaller compounds. 1. The chemical formula of calcium iodide is CaI2. 2. Moisture: … It is used in photography. Its boiling point is 1100 degrees C. Get help with your Chemical bond homework. white solid. Hydrate or anhydrous forms may be purchased. Interesting Facts about Silver. Zn + S ® ZnS composition. Online chemical formula worksheet for simple binary ionic compounds. or. Ca(NH 3) + 2NH 4 I → CaI 2 + 2NH 3 + H 2 (g) Learn to see the world around you in molecular detail with this collection of chemistry facts and structures, about both individual molecules and groups of related molecules. Table 4-1. A & P chapter 12 10/10/2011 45 ... Start studying Chemical Formulas: Calcium. Enter the email address you signed up with and we'll email you a reset link. This list complements alternative listings to be found at list of inorganic compounds and glossary of chemical formulae Calcium iodide is the ionic compound of calcium and iodine. Zinc + Sulfur ® zinc sulfide. Idargyrite is natural crystalline silver iodide. Appearance. Ex) 2Ca + O2 ( 2CaO. Individual Protection Measures, Such as Personal Protective Equipment The formula for Calcium Iodide: Calcium reacts with the iodine gas to produce calcium iodide compounds. Synthesis. Calcium iodide (chemical formula CaI 2) is the ionic compound of calcium and iodine. Assume standard conditions. Binary compound Formula 51 nickel oxide NiO 76 sodium iodide NaI 52 silver oxide Ag 2 O 77 lithium sulfide Li 2 S 53 silver bromide AgBr 78 zinc chloride ZnCl 2 … See more Calcium products. Its chemical formula is CaC 2 O 4 or Ca (COO) 2. Which element comes first in the name and formula of the compounds in Model 2—the metal or the nonmetal? Assume standard conditions. Finally, in potassium nitrate, the charges balance in another 1 : 1 ratio, giving a formula of "KNO"_3 . Molbase found 5 Calcium Iodide product information for you, including Calcium Iodide formula, Calcium Iodide CAS number, Calcium Iodide supplier information. Calcium iodide (chemical formula CaI 2) is the ionic compound of calcium and iodine. Density. It is also used in cat food as a source of iodine. High purity, submicron and nanopowder forms may be considered. It is colorless deliquescent solid and highly soluble in water. CaSO4. Magnesium Iodide: MgI 2: Calcium Nitrite: Ca(NO 2) 2: Calcium Nitrate: Ca(NO 3) 2: Calcium Hydrogen Sulfate: Ca(HSO 4) 2: Calcium Hydroxide: Ca(OH) 2: Calcium Cyanide: Ca(CN) 2: Calcium Permanganate: Ca(MnO 4) 2: Calcium Hydrogen Carbonate: Ca(HCO 3) 2: Calcium Hypochlorite: Ca(ClO) 2: Calcium Chlorite: Ca(ClO 2) 2: Calcium Chlorate: Ca(ClO 3) 2: Calcium … Calcium oxalate (in archaic terminology, oxalate of lime) is a chemical compound that forms envelope-shaped crystals, known in plants as raphides. Chemical Formula of Binary Ionic Compounds – Sheet 2 ANSWERS No. Reaction of Group 1 Elements . Log in with Facebook Log in with Google. Calcium Bicarbonate. Give the correct name for the formula NaBrO3. S Calcium sulfide S Silver sulfide Zn 'P Zinc phosphide Aluminum oxide Sr I Strontium chloride 4. Armed with a basic Periodic table students can begin to write chemical formulas in one easy lesson. CHEMICAL EQUATIONS I. The formula of the salt is written as (NH 4) 2 SO 4. Calcium fluoride (CaF2) is an insoluble ionic compound composed of Ca 2+ and F − ions. Chemical Reactions and Equations CHAPTER1 Consider the following situations of daily life and think what happens when – n milk is left at room temperature during summers. We have now fixed the number of "Ca" atoms and "PO"_4 groups. The formula of an ionic compound must have a ratio of ions such that the numbers of positive and negative charges are equal. Iodide is iodine with a negative charge, and is thus written as I-. Q: What is the chemical symbol of iodide? Write your answer... Registered users can ask questions, leave comments, and earn points for submitting new answers. Click on the compound link to show or hide each formula. 1. Start with the most complicated formula, "Ca"_3("PO"_4)_2. A chemical formula shows the symbols of the elements in the compound and the ratio of the elements to one another. Learn how to write the chemical formula of a variety of chemical compounds using the arms and link method. The chemical formula (not equation) of calcium iodide is CaI2. • Double Replacement - … 3 Turn over DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA *P53275A0332* Answer ALL questions. KCl + AgNO3 ® KNO3 + AgCl methathesis. Use Lewis dot diagrams to predict the formula for the ionic compound formed from barium and sulfur. Chemistry is all about learning chemical elements and compounds and how these things work together to form several chemical equations that are hard to understand. n food is cooked. The number of electrons in each of Calcium's shells is [2, 8, 8, 2] and its electron configuration is [Ar]4s 2. The resulting chemical formula is CaI 2. • Decomposition-a single compound decomposes into two or more elements or smaller compounds. 779 °C (1,434 °F; 1,052 K) (anhydrous) Boiling point. calcium iodide. 0086-400-6021-666 service@molbase.com The chemical formula for potassium iodide is KI. Copernicium was first created in 1996 by the GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, … Calcium iodide (chemical formula CaI 2) is the ionic compound of calcium and iodine. Chemical equation: CaCl 2 (aq) + Na 2 CO 3 (aq) CaCO 3 (s) + 2NaCl(aq) Ionic equation: Ca 2+ (aq) + CO 3 2-(aq) CaCO 3 (s) All carbonates are insoluble except sodium carbonate, potassium carbonate, and ammonium carbonate. Calcium hypochlorite may be used as an alternative to sodium hypochlorite and requires a smaller volume of liquid. A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. Molecular Facts and Structures. So it is characterized by the following chemical reactions: 1. the reaction of calcium oxide with chlorine: 2CaO + 2Cl2 → 2CaCl2 + O2 (t = 700 oC). It is also used in cat food as a source of iodine. Remember me on this computer. Question: PROBLEM SOLVING IONIC COMPOUND - Calcium iodide. Chemical Equation. I . Ionic bonds form between two atoms that have different electronegativity values.Because the ability to attract electrons is so different between the atoms, it's like one atom donates its electron to the other atom in the chemical bond. Caffeine Chemical Formula: C 8 H 10 N 4 O 2: Calcium Acetate Formula: C 4 H 6 CaO 4: Calcium Bromide Formula: CaBr 2: Calcium Chloride Formula: CaCl 2: Calcium Iodide Formula: CaI 2: Camphor Formula: C 10 H 16 O: Carbon Disulfide Formula: CS 2: Carbon Monoxide Formula: CO: Carbonate Ion Formula: HCO 3-Carbonous Acid Formula: Calcium iodide (chemical formula CaI2) is the ionic compound of calcium and iodine….Calcium iodide. Small pure smaples of calcum iodide may be made through the reaction of calcium metal in liquid ammonia with ammonium iodide. An iodate is a conjugate base of iodic acid. Recognizing Compounds With Ionic Bonds . Chemical Compounds List, Their Common Names and Formulas Chemical Compound. In all the above situations, the nature and the … You can recognize ionic compounds because they consist of a metal bonded to a nonmetal. Lithium Chromate. This colourless deliquescent solid is a salt that is highly soluble in water. To balance the charges, we require two nitrate ions per lead (II) ion, and so lead (II) nitrate is … The two charges balance in a 1 : 1 ratio, so potassium iodide is simply "KI". Calcium is a chemical element with the symbol Ca and atomic number 20. Calcium iodide | CaI2 | CID 5462722 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. The most common iodide lately known is Iodargyrite. formula KIO3 NaIO4 CaI. One such calcium compound is lime i.e. This salt is the source of most of the world’s fluorine. 09, Potassium Iodide 50% Soln. H. 9. Potassium Iodide ACS is used as a reagent in chemical analysis and in the photographic sector. The compound formed will be called calcium iodide. Potassium Sodium Calcium Copper Povidone Property iodate periodate iodide (I) iodide iodine . Write the chemical formula for: sodium fluoride NaF calcium iodide CaI 2 lithium oxide Li 2O rubidium bromide RbBr potassium bromide KBr barium iodide BaI 2 aluminum chloride AℓCℓ 3 hydrogen phosphide H 3P iron(II) nitride Fe 3N 2 silver sulfide Ag 2S iron(III) sulfide Fe 2S Zinc selenide is a chemical compound with a chemical formula of ZnSe. The potassium ion is "K"^+ and the iodide ion is "I"^-. Isotopes There are two naturally occurring stable isotopes of silver: silver-107 and silver-109. 3 Types of Chemical Reactions Notes • Synthesis - two or more elements or compounds combine to form one compound. A chemical formula provides insight and description into the elements that form the molecules of a compound and also the ratio in which the atoms of these elements combine to form such molecules. I I. O . What Is The Mass In Grams Of 1.73 Mol Cai2. One formula unit of calcium iodide contains one calcium ion and two iodide ions. This is the quickest and easiest way to learn. Li 2 Cr 2 O 7. Email. The mineral form halite, or rock salt, is sometimes called common salt to distinguish it from a class of chemical compounds … Calcium iodide Specification. Calcium Iodide is the inorganic compound. Its properties are similar to those for related salts, such as calcium chloride. Properties Its color is white. It occurs naturally as the mineral “Fluorite” (also called fluorspar) and as “Blue-John”. Example 3: Write the formula from the following name: barium iodide. • Single Replacement - a metal will replace a less active metal in an ionic compound OR a nonmetal will replace a less active nonmetal. The formula of an ionic compound must have a ratio of ions such that the numbers of positive and negative charges are equal. 35. calcium phosphate 36. lithium permanganate 37. mercury (E) nitrate 38. radium sulfite (souj IO.K2Cr207 12.PbBr2 Level (Il ) 13.ZnS03 14.NaHC03 15. h 16. 2 . Use the table of ions in Model 1 to answer the following questions: a. 2. potassium chloride + silver nitrate ® silver chloride (s) + potassium nitrate. Potassium Iodide ACS is used as a reagent in chemical analysis and in the photographic sector. Examples: Fe, Au, Co, Br, C, O, N, F. Compare: Co - cobalt and CO - carbon monoxide; To enter an electron into a chemical equation use {-} or e The following table gives the physical states and the state symbols used in chemical equations: solid, liquid, gas, aqueous. CAS Number : 10102-68-8. Part I: Identify the type of reaction and write a balanced chemical equation for each of the following reactions. Chemical Formulae of Common Compounds. n an iron tawa/pan/nail is left exposed to humid atmosphere. This colourless deliquescent solid is a salt that is highly soluble in water. This colourless deliquescent solid is a salt that is highly soluble in water. calcium oxide, CaO. The hypochlorite soon dissolves, and the thiol is then added as in the above procedure. O Na. O O K + Cu + I . Chemical Formula Table. • Double Replacement - … Lithium Dichromate. The chemical formula of a compound is defined as a symbolic representation of its chemical composition. CALCIUM IODIDE CAS 10102-68-8 WIKI information includes physical and chemical properties, USES, security data, NMR spectroscopy, computational chemical data and more. Identify all of the phases in your answer. KCl + AgNO3 ® KNO3 + AgCl methathesis. Infobox references. Calcium Iodide Anhydrous is the ionic compound of calcium and iodine with the chemical formula CaI2. CHEMICAL EQUATIONS. 5. Li 2 O 2. n food gets digested in our body. Step 1 (Atoms involved) - Step 2 (Chemical symbol) - Step 3 (Formed Ion) - Step 4 (Criss-cross multiply the charges) - Step 5 (Remove the plus sign to determine the chemical formula) -. What is the chemical formula for potassium iodide? potassium iodide formula. Calcium reacts with the iodine gas to produce calcium iodide compounds. This reaction takes place at a temperature of 200-400 degrees C. Its chemical equation is: Its color is white. Its melting point is 779 degrees C. I. It is extensively used in photography and is also of great use in cat food as a source of iodine. Determine whether the acid H2CO3(aq)H2CO3(aq) is a binary acid or an oxyacid. 2. potassium chloride + silver nitrate ® silver chloride (s) + potassium nitrate. Calcium iodate – a chemical compound. Molecular weight calculation: 40.078 + 126.90447*2 ›› Percent composition by element View Available Hint(s) ? Solid calcium w ate is commonly used in antacids because it reacts with the Calcium Iodide. It is also used as a sun symbol, and much of the mythology around gold relates to the sun. The iodide formula is also known as the Iodide anion formula contains a compound I- with a -1 oxidation state. It is soluble in water, ethanol, acetone, and methanol and insoluble in ether. Type I Problem Solving| IONIC COMPOUND - Calcium iodide Step 1 (Atoms involved) Step 2 (Chemical symbol) Step 3 (Formed Ion) Step 4 (Criss-cross multiply the charges) Step 5 (Remove the plus sign to determine the chemical formula) 09, Potassium Iodide 50% Soln. 6. Food Chemical Codex. A major constituent of human kidney stones, the chemical is also found in beerstone, a scale that forms on containers used in breweries. I + O . Treating an iodide with manganese dioxide and sulfuric acid sublimes the iodine. Ionic Naming and Formula Writing 38 Terms. 3 Types of Chemical Reactions Notes • Synthesis - two or more elements or compounds combine to form one compound. CaI 2, calcium iodide: Mg 3 N 2, magnesium nitride: CsF, cesium fluoride: Ca 3 P 2, calcium phosphide: LiCl, lithium chloride: Al 4 C 3, aluminum carbide: Table … It is used in photography. Calcium iodide (chemical formula CaI2) is the ionic compound of calcium and iodine. This colourless deliquescent solid is a salt that is highly soluble in water. Its properties are similar to those for related salts, such as calcium chloride. The atoms want to have their p orbital filled. O . Calcium Iodide is an inorganic compound which is made of calcium and iodine elements. Chemical equation of reaction of 2Br, CaI2, CaBr2, I2. Chemistry. Formula Equations (Chemical Equations): uses chemical symbols and formulas . n we respire. (a) Give the symbol of the element that has an atomic number of … 3.956 g/cm3 (anhydrous) Melting point. Chemical Formula : CaI 2. It is the greatest monatomic anion. Iodide compounds are used in internal medicine. This reaction takes place at a temperature of 200-400 degrees C. Its chemical equation is: C a + I 2 → C a I 2 Ca + I_2 \rightarrow CaI_2 Ca+I2 →CaI2. Its properties are similar to those for related salts, such as calcium chloride. Calcium iodide ( chemical formula CaI2) is the ionic compound of calcium and iodine. There will be a fixed ratio for a chemical compound determining the composition of it. Download the identifier in a file. Calcium iodates are inorganic compounds composed of calcium and iodate anion. It comes from the Anglo-Saxon word "seolfor" for the element. The resulting chemical formula is CaI 2. Click here to sign up. It is used in photography. potassium iodide formula. Its properties are similar to those for related salts, such as calcium chloride. Hydriodic acid is the colorless solution formed when hydrogen iodide gas dissolves in water, and at commercial strength, typically contains 47% hydrogen iodide. Physical States and Symbols in a Reaction. 1. As a result of the reaction of bromine (Br) and calcium iodide (CaI 2) produces calcium bromide (CaBr 2), iodine (I 2) Small pure smaples of calcum iodide may be made through the reaction of calcium metal in liquid ammonia with ammonium iodide. Calcium (atomic symbol: Ca, atomic number: 20) is a Block S, Group 2, Period 4 element with an atomic weight of 40.078. Johnmel Kenneth B. Perez STEM 12-4 KWL Chart Topic Know Want to know Learned Chemical Formula and Chemical Name Chemical formula and names are used to represent the atom proportion of a compound element by means of numerical subscripts. Need an account? Balance the chemical equation algebraically: I_2 + Ca CaI_2 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 I_2 + c_2 Ca c_3 CaI_2 Set the number of atoms in the reactants equal to the number of atoms in the products for I and Ca: I: | 2 c_1 = 2 c_3 Ca: | c_2 = c_3 Since the coefficients are relative quantities and underdetermined, choose a coefficient to set … This reaction takes place at a temperature of 200-400 degrees C. Its chemical equation is: C a + I 2 → C a I 2. ONE-SCHOOL.NET Periodic Table . 1. 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