Film Clip Analysis An Ideal Husband - 1947 This scene depicts what appears to be lovers preparing for bed and discussing the political unrest within the mans life‚ set in an extravagant house the couple appear to have returned from a party as they are wearing tuxedo and ball gown. The upper class setting is then further exemplified when the woman calls the maid to post a letter for her (shot 24). This kind of setting represents clearly the wealth that the couple bear‚ further exemplifying the
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All metal ions in solution are ’associated’ with water. The water molecules can also be weakly bonded or more strongly as a ligand to form a complex ion‚ and these can also present in solid ’hydrated’ salts of crystallization. E.g Copper(II) nitrate (Cu(NO3) 2.3H2O). A complex ion has a metal ion at its centre with a number of other molecules or ions surrounding it. These can be considered to be attached to the central ion by co-ordinate (dative covalent) bonds. The molecules or ions surrounding
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experiments‚ I found the metals with the most activity to the least activity. The following metals are ranked from most or lots of activity to least or no activity: 1) Magnesium (Mg) 2) Zinc (Zn) 3) Iron (Fe) 4) Copper (Cu) Magnesium (Mg)‚ Zinc (Zn)‚ Iron (Fe)‚ and Copper (Cu). 2) Reactions for Zinc: Zn + HCl = ZnCl2 + H2 (unbalanced) Zn + 2 HCl = ZnCl2 + H2 (balanced) zinc + hydrochloric acid = zinc chloride + hydrogen (name of
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Cazul Ford Pinto Acesta caz s-a petrecut la sfarsitul anilor ’60‚ cand cererea pentru masini sub-compacte a fost in crestere pe piata. Specificatiile Iacocca pentru proiectarea masinii au fost fara compromisuri: "Pinto trebuia sa fie cu nici macar o uncie mai greu de 2.000 de pounds (aprox. 900 kg) si sa nu coste un cent peste 2.000 de dolari." In timpul proiectarii si productiei‚ totusi‚ testele de coliziune a relevat un defect serios la rezervorul de benzina. In accidente
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of removal of heavy metal ions Cu (II)‚ Zn (II)‚ Co (II)‚ Ni (II)‚ Pb (II) and Cd (II) in the presence of complexing agents with the aminopolycarboxylic acid groups namely EDTA‚ NTA‚
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Equations: 1) Cu + 4H+(aq) + 2NO3-(aq) Cu2+ + 2NO2 + 2H2O 2) Cu2+(aq) + 2-OH(aq) Cu(OH)2 3) Cu(OH)2 + heat CuO + H2O 4) CuO + H2SO4 Cu2+(aq) + SO42-(aq) + H2O 5) Cu2+(aq) + Zn Cu + Zn2+(aq) Stage 1- Dissolution of Copper Mass of vial & copper = 3.537g Mass of vial = 2.505g Mass of Copper = 1.032g Moles of copper = mass (g) ÷ (63.5g/mol) = 0.0162 mol (3s.f) Copper description: Initially‚ the copper was a solid that was
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copper ions. this is the balanced equation for the reaction Cu(s) + 4H+(aq) + 2NO3-(aq)---> Cu2+(aq) +2NO2(g) + 2H2O(l) The reaction of aq copper nitrate with sodium hydroxide was the turning of the solution to a blue color‚ when water was added a cloudy mass of blue was formed below. This precipitate was copper (II) hydroxide. The precipitate was blue because of the copper ions. the balanced equation for this is Cu2+(s) + 2OH-(s) ---> Cu(OH)2O(s) The third reaction copper (II) hydroxide solution
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Chemical Equilibrium ------------------------------------------------- ------------------------------------------------- RESULTS AND DISCUSSION A. Iron-Silver Equilibrium In studying equilibrium between iron and silver‚ 0.10 M FeSO4 and 0.10 M AgNO3 were used. The balanced equation for the reaction is: FeSO4 (aq) + 2 AgNO3 (aq) ↔ Fe(NO3)2 (aq) + Ag2SO4 (s) It has a net equation of: Fe2+(aq) + Ag+(aq) ↔ Fe3+(aq) + Ag(s) This part of the experiment
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apart are the bases if its volume is 108.2 cu. cm? A. 7.8 cm B. 8.9 cm C. 8.3 cm D. 9.3 cm 4. A primatoid has end areas of 5 sq. m and 18 sq. m respectively. If its length is 8 m‚ what is its mid section area (in sq. m) if its volume is 100 cu. m? A. 12 B. 14 C. 13 D. 15 5. A heat engine does 350 J of work and rejects 750 J of heat. What is the efficiency of the engine? A. 0.28 B. 0.40 C. 0.32 D. 0.47 6. What is the volume (in cu. cm) of a regular octahedron whose edge is
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First generation (1970–1974) The Challenger was described in a book about 1960s American cars as Dodge’s "answer to the Mustang and Camaro. It was one of two Chrysler E-body cars‚ the other being the slightly smaller Plymouth Barracuda. "Both the Challenger and Barracuda were available in a staggering number of trim and option levels" and were intended "to compete against cars like the Chevrolet Camaro and Ford Mustang‚ and to do it while offering virtually every engine in Chrysler’s inventory."
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