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FeS chemical name

Ferrous sulfide FeS - PubChe

Iron(II) sulfide - Wikipedi

In this video we'll write the correct name for FeS. To write the name for FeS we'll use the Periodic Table and follow some simple rules.Because FeS has a tra.. Iron (II) Sulfide (Ferrous Sulfide) is a moderately water and acid soluble Iron source for uses compatible with sulfates. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal

Financial Education Services has created countless financial programs aiming to satisfy the need for financial security. We've covered the spectrum to create pieces for each part of the financial puzzle. From maximizing your credit potential, protecting your identity, securing your assets to preparing for a stable financial future The chemical formula FeS stands for the compound iron (II) sulfide or ferrous sulfide. Fe is the symbol for iron (a transition metal), and S is the... See full answer below. Become a member and.. In this video we'll write the correct name for Fe2S3. To write the name for Fe2S3 we'll use the Periodic Table and follow some simple rules. (Note that the. The mineral pyrite (/ ˈpaɪraɪt /), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S 2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral A B; Ammonia: NH3: Carbon dioxide: CO2: Carbon monoxide: CO: Chlorine: Cl2: Hydrogen chloride: HCl: Hydrogen: H2: Hydrogen sulfide: H2S: Methane: CH4: Nitrogen: N2.

Iron disulfide FeS2 - PubChe

Chemical Compound Formulas Chemical formulae provide a way to represent any chemical substance using the symbol of the elements present in it. Provided below is a list of the chemical formulas of some common chemical compounds (along with their molecular weights) Chemical Elements, Periodic Table » Compound Name Formula Search » Moles to Grams Calculator » Common Compounds List » Chemical Equation Balancer » Complete List of Acids » Complete List of Bases » Molar to Mass Concentration Converter » Molar Mass Calculator » Cations, Anions List » Dilution Calculator » Molarity Calculator. MnCl 2. mangenese (II) chloride. AgI. silver iodide*. NiCl 2. nickel (II) chloride. *Please note that the transition metals zinc (Zn), cadmium (Cd), and silver (Ag) do not have multiple charges. Therefore, there is no need to place parantheses following their names in compounds, since they have fixed charges of +2, +2 and +1, respectively

Iron(II) sulfide FeS ChemSpide

Molar mass of FEs = 270.9984032 g/mol. Convert grams FEs to moles or moles FEs to grams. Molecular weight calculation: 18.9984032 + 252.0 Writing names and formulas for ionic compounds. Provide proper chemical names (spelling counts!). Or provide chemical formulas using proper chemcial symbols, parentheses when needed, and numbers immediately following as subscripts, as in the following format: sodium chloride would be NaCl and aluminum sulfate [Al 2 (SO 4) 3] would be expressed as Al2(SO4)3 chemical properties? A)Si, P B)C, N C)K, Ca D)O, S E)F, He 17) Answer: D 18)Which formula/name pair is incorrect? A)FeS iron(II) sulfide B)FeSO4 iron(II) sulfate C)Fe2(SO3)3 iron(III) sulfite D)Fe2(SO4)3 iron(III) sulfide E)FeSO3 iron(II) sulfite 18) Answer: D 19)Of the following, the smallest and lightest subatomic particle is the _____. A)proto

Product Description. SDS. 778117. powder, −325 mesh, 99.8% trace metals basis. Pricing. Match Criteria: Keyword, Formula. NDUFS2. NADH dehydrogenase (ubiquinone) Fe-S protein 2, 49kDa (NADH-coenzyme Q reductase A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds For example, FeCl 2 ,which would have been named iron (2)-chloride according to Stock's original idea, became iron (II) chloride in the revised proposal. In 1934, Stock approved of the Roman numerals, but felt it better to keep the hyphen and drop the parenthesis. This suggestion has not been followed, but the Stock system remains in use world. The correct answer to this question is Fe2 (SO4)3 which is the chemical formula. The IUPAC name is iron (III) sulfate, which is determined by the set of rules that provide compounds with their name developed by the International Union of Pure and Applied Chemistry. Fe2 (SO4)3 is the formula for this chemical compound

What Is the Chemical Name for Water? The systematic names for water, as determined by the International Union of Pure and Applied Chemistry (IUPAC), are water and oxidane, although water is the more commonly used term by chemists. The traditional name has been retained for ease of communication What is the term for the substance in a chemical reaction that controls the maximum amount of product? limiting reactant. -> FeS(s) 8.792 g. In an experiment, 0.520 g of chromium metal reacts with 3.807 g of iodine. Using the conservation of mass law, predict the mass of product iron sulphide, iron(II) sulphide or ferrous sulphide. Iron sulphide is ambiguous however and could refer to any one of a range of iron sulphur compounds,including Fe3S4 and Fe2S

Iron Sulfide (II): Properties, Risks and Uses. He Iron sulfide (II) , Also called ferrous sulfide, is a chemical compound of formula FeS. Iron sulphide powder is pyrophoric (spontaneously ignites in the air). Iron (II) sulphide is obtained by heating sulfur and iron according to the reaction: The reaction is very exothermic (releases heat) and. Formula in Hill system is FeS: Computing molar mass (molar weight) To calculate molar mass of a chemical compound enter its formula and click 'Compute'. In chemical formula you may use: Any chemical element. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al Structure, properties, spectra, suppliers and links for: Iron(2+) disulfide

For iron sulfide formation, although the chemical reactions describing sulfide chemistry are well known [7], the pathways for iron sulfide layer formation are still debated [11-13].The latest developments in the mechanism of FeS (mackinawite) formation involve a rapid formation of a thin layer by direct reaction, where the Fe atom does not leave the metal microstructure and reacts. Pyrite (FeS 2 ) is a mineral that contains a sulfide ion as its anion. Gypsum [CaSO 4 -2(H 2 O)] contains the polyatomic anion known as sulfate (SO 4 2− ) as well as two waters of hydration (water molecules that are part of the crystalline structure) CleanGredients™ is a database of chemical ingredients used primarily to formulate residential, institutional, industrial and janitorial cleaning products that have been pre-approved to meet the U.S. EPA's Safer Choice Standard. EPA inerts list Dow produces surfactants that act as emulsifiers, dispersants, wetting agents for cro FES covers all aspects of maintenance of fire detection, suppression and fire fighting equipment; workplace management and emergency training, compliance and asset management. Trust the name you know. Contact us now for advice, service and sales on 1300 855 163. FES customers registered for the web portal can to the portal here Search for Species Data by Chemical Name. Please follow the steps below to conduct your search (Help) : Enter a chemical species name or pattern: (e.g., methane, *2-hexene) Select the desired units for thermodynamic data: SI calorie-based. Select the desired type (s) of data: Thermodynamic Data. Other Data. Gas phase

Pyrite is a brass-yellow mineral with a bright metallic luster. It has a chemical composition of iron sulfide (FeS 2) and is the most common sulfide mineral. It forms at high and low temperatures and occurs, usually in small quantities, in igneous, metamorphic, and sedimentary rocks worldwide. Pyrite is so common that many geologists would. The names of the compounds FeS, NaCl, and Al3O2 all end in the suffix A. -ide. B. -ic. C. -ite. D. -ate. The names of the compounds FeS, NaCl, NaOH, and Pb(CN)2 all end in the suffix -ide. s. Score .7939. Log in for more information. Question. Asked 5/16/2019 3:05:44 PM. Updated 5/16/2019 4:42:04 PM. eens 211 0 formaulae of common minerals . orthosilicates (nesosilicates) sheet silicates (phyllosilicates

What is the IUPAC name for the compound FeS? Socrati

  1. A B; lithium fluoride: LiF: lithium chloride: LiCl: lithium bromide: LiBr: lithium iodide: LiI: lithium oxide: Li2O: lithium sulfide: Li2S: lithium nitride: Li3N.
  2. Fentons Reagent General Chemistry Using H2O2. Fe 2+ + H2O2 → Fe 3+ + OH - + . OH. Fe 3+ + H2O2 → Fe 2+ + . OOH + H+. adding slowly the H2O2. If the pH is too high, the iron precipitates as Fe (OH)3 and catalytically decomposes the H2O2 to oxygen -- potentially creating a hazardous situation. Reaction rates with Fenton's Reagent are.
  3. Name: Date: Balancing Equations About Chemistry http://chemistry.about.com Balance the following chemical equations. 1. Fe . 2 + 3 . H 2S0
  4. Learn chemical names with free interactive flashcards. Choose from 500 different sets of chemical names flashcards on Quizlet
  5. Common chemical names are used in spoken or informal written communication by chemists. For some simple compounds, their systematic and common names are the same. Key Terms. common name: The name by which a species is known to the general public, rather than its taxonomic or scientific name
  6. eral in sediments. Over geological times, its burial controlled oxygen levels in the atmosphere and sulfate concentrations in seawater. However, the mechanism of pyrite formation in sediments is still being debated. We show that lithotrophic microorganisms can mediate the transformation of FeS and H2S to FeS2 at ambient temperature if metabolically.
  7. Name: _____ Chemistry Period: _____ March 30, 2016 STOICHIOMETRY PRACTICE HANDOUT - Answer Key 1. Balance the following chemical reaction: 2 C4H10 + 13 O2 è 8 CO2 + 10 H2O, and show what the following molar ratios should be

Question. 2. (a) Give one point of difference between an atom and an ion. (b) Give one example each of a polyatomic cation and an anion. (c) Identify the correct chemical name of FeS: Ferrous sulphate, Ferrous sulphide, Ferrous sulphite. (d) Write the chemical formula for the chloride of magnesium This is the same as using the OR operator. E.g. if you search: Clorox Bleach then the system will show SDS with product names or manufacture names containing the words Clorox Bleach and will also show SDS containing only one of the words. It is the equivalent of searching for Clorox OR Bleach Main-Group Nonmetals (Groups IVA, VA, VIA, and VIIA). Group IVA, VA, VIA, and VIIA nonmetals tend to form anions by gaining enough electrons to fill their valence shell with eight electrons. The charge on the anion is the group number minus eight. The anion is named by taking the element stem name and adding the ending -ide.. Ions of Some Nonmetals (Groups IVA - VIIA Match each chemical reaction with the type of reaction that best describes it. synthesis 2Al + 6HCl → 2AlCl3 + 3H2 decomposition Ca + Br2 → CaBr2 single displacement 4NH3 + 5O2 → 4NO + 6H2O double displacement 2NaCl → 2Na + Cl2 combustion FeS + 2HCl → FeCl2 + H2 The molten matte (CU 2 S + FeS) is transferred to a Bessemer converter, a pear shaped vessel lined with MgO or SiO 2 and heated by hot air blown through tuyers and mounted in such a way that it can be filled in any direction. It is mixed with some silica as flux and heated by passing hot air through tuyers. The air oxidises FeS to FeO, which combine with silica forming a slag

What is the name for the chemical formula FeS? - Answer

  1. PRI-SC® Hydrogen Peroxide Regenerated Iron for Sulfide Odor Control. Sulfide odor control within sanitary sewers has been practiced for over 50 years, yet only recently have substantive advances been made.Where once the choice of chemical treatment was either chlorine or iron salts, safer and more environmentally benign technologies based on nitrates, hydrogen peroxide, and/or magnesium.
  2. Jose Luis Pelaez Inc / Getty Images Good job! You completed the quiz, so you got practice balancing equations. However, you missed some questions, so you might want to review the steps to balancing equations or print free practice worksheets.If you feel ready to move on, learn about mass relations in balanced equations.. Are you ready to try another quiz
  3. Name the substance oxidised, reduced, oxidising agent and reducing agent in the following reactions: (i) Ca + Cl 2 →CaCl 2 (ii) 3MnO 2 + 4Al → 3Mn + 2Al 2 O 3 (iii) Fe 2 O 3 + 3CO →2Fe + 3CO 2 (iv) Fe + S → FeS
  4. Hardness Streak Other Diagnostic Properties Name (Chemical Composition) Harder than glass Black Black; magnetic; hardness = 6; specific gravity = 5.2; often granular Magnetite (Fe 3 O 4) Greenish-Black Brass yellow; hardness = 6; specific gravity = 5.2; generally an aggregate of cubic crystals Pyrite (FeS 2) Fool's gol
  5. Fe + S → FeS In a reaction, Fe is changing to FeS. That means, iron loses electrons to form FeS. Loss of electron from a substance is called oxidation, so iron undergoes oxidation
  6. eral acid. It is soluble in water at all concentrations. It was once known as oil of vitriol, coined by the 8th-century Alchemist Jabir ibn Hayyan, the chemical's probable discoverer. Sulfuric acid has many applications, and is produced in greater amounts than any other chemical besides water

What is the Iupac name for the compound FeS

Mass of products does not equal mass of reactants. Matter (mass) can be created or destroyed in certain chemical reactions. Tags: Question 11. SURVEY. 30 seconds. Q. Determine the number of oxygen atoms in the following chemical formula: Pb (NO3)2. answer choices Name two salts that are used in black and white photography. Answer: Both silver chloride and silver bromide are used in black and white photography. Question 8. Which chemical process is used for obtaining a metal from its oxide? Answer: The process is known as the reduction of metal oxide. Question 9 Chemical Compound Formulas. Calcium Sulphate. Calcium Sulphate - CaSO4. Calcium is an essential metal for living organisms. Due to its chemical properties, it finds usage in the preparation of alloys as a deoxidizer, desulfurizer and decarbonizer. However, it is not just the metal itself, a number of calcium compounds are also crucial to. Phosphorus pentoxide Names Other names Diphosphorus pentoxide Phosphorus(V) oxide Phosphoric anhydride Tetraphosphorus decaoxide Tetraphosphorus decoxide Identifiers CAS Number * 1314-56-3 * 16752-60-6 (P4O10) 3D model (JSmol) * Interactive image.

How to Write the Name for FeS - YouTub

Photoelectric flame photometry, a branch of atomic spectroscopy is used for inorganic chemical analysis for determining the concentration of certain metal ions such as sodium, potassium, lithium, calcium, Cesium, etc. In flame photometry the species (metal ions) used in the spectrum are in the form of atoms The label man-made is therefore meaningless when applied to chemicals that are also found in nature. Perhaps when people say man-made chemical, they mean impure chemical. If that is their implication, they have it exactly backwards. Chemicals created in the lab tend to be more pure than the same chemicals found in nature Question: A Number Of Chemical Reactions Have Been Proposed For The Formation Of Organic Compounds From Inorganic Precursors. Here Is One Of Them:H2S + FeS + CO2 = FeS2 + HCO2Ha.) Identify The Ions In FeS And FeS2. Give The Correct Names For Each Compound.b.) How Much HCO2H Is Obtained By Reacting 3.80g Of FeS, 1.90g Of H2S, And 1.90g Of CO2 If The Reaction Results. For Fe 2 O 3 use the hints and resources below to help write the name. With Fe 2 O 3 we have a transition metal and a non-metal. This is a binary ionic compound. Name the metal as it appears on the Periodic Table. Name the non-metal (Ox ygen) by replacing the ygen with ide. Look at the chemical formula to find the charge for Iron Balancing Equations: Practice Problems 1. Balance each of the following equations. (a) Fe+ Cl2 −−→ FeCl3 (b) Fe+ O2 −−→ Fe2O3 (c) FeBr3 + H2SO4 −−→ Fe2(SO4)3 + HBr (d) C4H6O3 + H2O −−→ C2H4O2 (e) C2H4 + O2 −−→ CO2 + H2O (f) C4H10O+ O2 −−→ CO2 + H2O (g) C7H16 + O2 −−→ CO2 + H2O (h) H2SiCl2 + H2O −−→ H8Si4O4 + HCl (i) HSiCl3 + H2O −−.

The most familiar one, a metastable form, crystallizes in at least four forms or Polymorphs. P4O10 is a chemical compound generally known as Phosphorus pentoxide, derived from its empirical formula P2O5. It can prepared by burning tetraphorous wit.. name_____ PS ____ # ____ date:_____ Chapter 7 TEST CHEMICAL REACTIONS PART 1: MULTIPLE CHOICE. _____ 1. Which of these is not a sign of a chemical reaction? a. A gas is given off. c. Heat is released. b. The material dissolves. d. A color change occurs. _____ 2. The substance that is formed in a chemical reaction is called the a. polymer. c. Chemistry Chemistry & Chemical Reactivity Balance equations for these reactions that occur in aqueous solution, and then classify each as a precipitation, add-base, or gas-forming reaction. Show states for the products (s, ℓ, g, aq), give their names, and write the net ionic equation. (a) K 2 CO 3 + HClO 4 → KClO 4 + CO 2 + H 2 O (b) FeCl 2 + (NH 4 ) 2 S → FeS + NH 4 Cl (c) Fe(NO 3 ) 2. A big reason we balance equations is to find the ratios between different substances in the chemical reaction. The coefficients, the big numbers in front of compounds, tell us the ratios. These are often thought of as mole ratios. Practice Balancing. Balance the equation: Mg + HNO 3 → Mg(NO 3) 2 + H 2. Hint #1

If you would like to receive our newsletter, we need your name and your e-mail address. The data processing for the purpose of sending the newsletter takes place under Art. 6(1)(a) GDPR based on your freely given consent by means of double Opt-in. We use and store your data until you withdraw your consent or unsubscribe the newsletter Iron sulfide, in both the monosulfide (FeS) and disulfide (FeS2) forms, has been considered as cathode material for lithium batteries. Primary Li-FeS x battery uses lithium anode, iron sulfide cathode, and lithium iodide in an organic solvent blend as the electrolyte. The cell reactions are. [XXIV] At the anode: 4 Li → 4 Li + + 4 e −

For example, a beautiful gold-colored mineral is called pyrite, or fool's gold, because it looks so much like real gold. Pyrite is iron sulfide (FeS 2 ). Sulfur was known to ancient peoples. Its physical and chemical properties are very distinctive. It often occurs as a brilliant yellow powder General Pyrite Information : Chemical Formula: FeS2 : Composition: Molecular Weight = 119.98 gm Iron 46.55 % Fe: Sulfur 53.45 % S: 100.00 % : Empirical Formula: Fe 2. It is assumed that the main reaction that occurs is: Fe(s) + S(s) --> FeS(s) but the system is probably much more complex than that.The standard enthalpy of formation of FeS is -100 kJ/mol. The iron and sulfur are present in the reaction mixture in roughly equimolar quantities. 1 Shakashiri states that this reaction should not be used to demonstrate the difference between physical and chemical. Product search for: Disponil FES 993. Categories based on Disponil FES 993 : alcohol alkyl disponil ethanediyl ether ethers fatty hydroxy laureth lauryl paste poly polyethyleneglycolether salt salts sodium solution sulfate sulfo texapon. IUPAC name. CAS

Iron(II) Sulfide AMERICAN ELEMENT

to name only a few. In some coutnries, pyrites and iron sulfide ores still constitute today, an important raw material basis for sulfur dioxide production, especially as the primary stage for sulfuric acid manufacture. The most important iron sulfide minerals are pyrite FeS2 as well as pyrrhotite Fe7S8. They occur in varying purity as. 17. Consider the following chemical react(oÀðritten as a word equation. phosphoric acid diphosphorus pen toxide + water a. Identify the type of chemical reaction from Model I that would describe this reaction. b. Write chemical formulas under the names of the substances in the word equation. S2Q c. Balance the chemical equation. STO Get detailed information about chemistry and the elements. Solve problems easily using our calculators and solvers

Iron(II) sulfide - Wikipedia

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The correct name for BaOH 2 is a barium hydrogen oxide b

Unit 2: Chemical Reactions Answer Key Chemical Nomenclature - Naming Ionic Compounds 1. Give the metal its full name 2. Give the non-metal its ion name (with the ide ending) Ex: NaCl sodium chloride BaF 2 barium fluoride Writing Ionic Compound Formulas: Crossover method 1. Find the charge on each element 2 Chemistry forum. Chemistry and homework help forum. Organic Chemistry, Analytical Chemistry, Biochemistry, Physical Chemistry, Computational Chemistry, Theoretical Chemistry, High School Chemistry, Colledge Chemistry and University Chemistry Forum. Share your chemistry ideas, discuss chemical problems, ask for help with scientific chemistry. Chemical Analysis: Schedules I thru V : New - 225 Renewal - 225a : $244 : 1 Year : May manufacture and import controlled substances for analytical or instructional activities; may distribute such substances to persons registered or authorized to conduct chemical analysis, instructional activities, or research with such substances and to persons. For instance, the chemical name of NaCl is Sodium chloride and its common name is salt. Chemical Formula A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers and sometimes also other symbols such as. (names that identify the chemical composition of a chemical compound) and . common names (traditional names based on historical discovery or reactivity behavior). For example, N. 2. O has both a systematic name (dinitrogen monoxide) and a common name (laughing gas). If every substance were assigned a common name, chemists would be expected to.

What is the compound FeS? Study

2.3 Mineral Groups Most minerals are made up of a cation (a positively charged ion) or several cations and an anion (a negatively charged ion (e.g., S 2-)) or an anion complex (e.g., SO 4 2-). For example, in the mineral hematite (Fe 2 O 3), the cation is Fe 3 + (iron) and the anion is O 2- (oxygen). We group minerals into classes on the basis of their predominant anion or anion group Table 1: Mineral Chemical Groups and Formulae for Rock Forming Minerals. Group Mineral Name Mineral Formula Staurolite Fe 2 Al 9 Si 4 O 22 (OH) 2 Carbonates Calcite, Aragonite CaCO 3 anion = CO 3 Dolomite CaMg(CO 3) 2 2-Azurite Cu 3 (CO 3) 2 (OH) 2 Malachite Cu 2 CO 3 (OH) 2 Sulfates Anhydrite CaSO 4 anion = SO 4 Gypsum CaSO 4 •2H 2 O 2.

How to Write the Name for Fe2S3 - YouTub

Chemical Compound Ions present Name Type (if ionic) Chemical Formula Ex. aluminum sulfide ionic [ 2 Al+, 3 S2-] Al 2S 3 chromium(III) oxide ionic [ Cr3+, O2-] Cr 2O 3 zinc chloride ionic [ Zn2+, Cl-] ZnCl 2 carbon dioxide covalent n/a CO 2 iron(II) cyanide ionic [ Fe2+, CN-. 2. Find the limiting reactant and set its value at the end to zero in the table. 1.5 dm 3 of propane reacts with 5 x 1.5 dm 3 = 7.5 dm 3 of oxygen. We have 10 dm 3 of oxygen, hence oxygen is in excess and propane is limiting. Put a zero in the table under propane: C3H8. 5O2 Nomenclature, a collection of rules for naming things, is important in science and in many other situations.This module describes an approach that is used to name simple ionic and molecular compounds, such as NaCl, CaCO 3, and N 2 O 4.The simplest of these are binary compounds, those containing only two elements, but we will also consider how to name ionic compounds containing polyatomic ions. Chemical elements listed by symbol The elements of the periodic table sorted by symbol. click on any element's name for further chemical properties, environmental data or health effects.. This list contains the 118 elements of chemistry

or the formula FeS means one atom of iron is chemically combined with 1 atom of sulfur to form the compound called iron sulfide. iron m/c quiz picking the formula given the chemical name (3) Type in the formula quiz given the name (4) Type in. Records assumed name certificates for new businesses. The Travis County Clerk's permanent library contains millions of documents dating from the 1800s to the present. Older documents are available on microfilm and newer documents can be viewed online

PPT - Chemical Nomenclature and Chemical reactionsSolved: I6-Ferrocenyl-1-hexanethiol | DojindoTop Hairstyles BlogCRYSTAL STRUCTURE GALLERYBornite color stoneIonic compounds naming

It is a chemical change as both iron and sulphur lose their properties. Examiner : How can you separate the components of a compound? ' Examinee: The components of a compound are separated by chemical methods. Examiner : Is the reaction between FeS and H 2 S0 4 [FeS + H 2 S0 4 —> FeS0 4 + H 2 S] , a chemical or a physical change? Examinee. MSDS Name: Iron Catalog Numbers: S71953, S71953-1, S71953-2, S93268, I60-3, I60-500, I62-500 Synonyms: Iron Dust; Iron Metal; Iron Powder. Company Identification: Fisher Scientific 1 Reagent Lane Fair Lawn, NJ 0741 Name substance oxidised ,reduced, oxidising agent reducing agent in the following reactions: (i) Fe + S -- FeS (ii) Ca + Cl2 -- CaCl2 - Science - Chemical Reactions and Equation