Prediction: *Using metal magnesium as an example illustration I. (Magnesium reacts with lead (II) nitrate) Mg + Pb(NO3)2 Pb + Mg(NO3)2 II. (Magnesium reacts with zinc nitrate) Mg + Zn(NO3)2 Zn + Mg(NO3)2 III. (Magnesium reacts with iron (III) nitrate) 3Mg + 2Fe(NO3)3 2Fe + 3Mg(NO3)2 Variables: The dependent variable for this investigation is the reactivity of each metal as measured by the occurring of chemical reactions between each combination of three solutions (0
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boiling water and metal sample in the pot (Ti(metal)) 95.0 C Temperature of cool water in the calorimeter prior to adding hot metal sample (Ti(water)) 17.0 C Maximum Temperature of water/metal in calorimeter after mixing (Tf) 50.0 C IRON METAL Pre-weighed Iron metal sample mass (mmetal) 50.0grams Temperature of boiling water and metal sample in the pot (Ti(metal)) 100.0 C Temperature of cool water in the calorimeter prior to adding hot metal sample (Ti(water)) 18.0 C Maximum Temperature of
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Questions 1. Use molar mass of iron to convert the mass of iron to moles. 85.65g/55.9g 1.534 moles of Iron were used 2. According to the law of conservation of mass‚ what is the mass of oxygen that reacts with the iron? 118.37g – 85.65g = 32.72 grams of Oxygen reacted with Iron 3. Calculate the number of moles of oxygen in the product. 32.72g/15.99g = 2.045 moles is the amount of moles of Oxygen produced 4. Use the ratio between the number of moles of iron and the number of moles of oxygen
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shields and milk was part of their staple diet. They used cattle in order to trade with other people for luxury items‚ food or iron tools. The early mixed farmers traded only with the Khoesan and they only traded iron supplements and crops‚ whereas the Late Mixed farmers had an extensive trading network‚ they traded with people from East Africa‚ Arabia‚ Persia‚ India and China‚
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commodities sold by the company remained the reason behind this erosion in operating revenue. The contribution of lower prices of these commodities in depressing the revenues was $ 281 million of iron ore fines‚ $ 136 million of nickel‚ $ 98 million of copper and $ 74 million of pellets. Higher volumes of iron ore fines had a positive effect of $ 167 million on the company’s revenue. 53.6 % of the total gross revenue came from Asia out of which China represents more than 70 %. Similarly‚ 25.7 % of the
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1 a The diagram shows the parts of a hydrogen atom. [pic] Use words from the list to label the diagram. electron group nucleus symbol (2) b Hydrogen can be used as a clean fuel for cars. i When hydrogen burns in air‚ it reacts with another element. Complete the word equation for this reaction. hydrogen + ................... → water (1) ii Suggest one reason why hydrogen is called a clean fuel. (1)
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metal is on the left and the least active metal is on the right. Remember‚ sodium and copper are metals‚ too. B. Suppose you inserted a piece of copper into a solution of nickel chloride and observed no reaction. Then if you inserted a piece of iron into the solution of nickel chloride a nickel deposit formed on the bottom of the well in the well plate. Where does nickel fit into your activity series? The chemical reactions for the preceding question B are: Cu (s) + NiCl2 (aq) à no reaction
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Contact Persons Details: Name Designation Mobile No. Mobile No. P & T No. Fax No. e-mail address e-mail address SMS Alerts Interested in (Please tick): Ferrous / Non ferrous / Store/ Idle assets/ Chemicals/ Iron Ore Seller Y/ Material of interest N Bhilai Matl Y/N Matl Y/N Matl Plate Pooled Iron (CI) Ammonium
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4-1 shows that a hardness of HB 400 could be obtained by quenching in water and tempering in 700°F while still having 207f elongation for gciod ductility. 33. AISI 200 and 300 series 34. Chromium 35. ASTM A992 structural steel 37. Gray iron‚ ductile iron‚ malleable iron 41. Stamping
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(REMOVING IRON AND SULFUR) Cu2S(s) + flux solution + O2 (g) + heat (furnace) Fe(s) +flux slag (silica flux chemically binds with Fe‚ and removed) Slag O2(g) +S(g) SO2 (g)(S combines with O2 and is released through exhaust) SO2(g) Cu2S(s) +FeS(s) Cu2SFeS(s) (60% copper sulphide 40%iron sulphide) CONVERTING (removing of remaining traces of Iron and Sulfur)
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