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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RECAPITULARE De acum inainte yom incepe lectiile cu prezentate 1. cuno~tintele 0 scurta recapitulare a materialului anterior. Tot aici vor fi de gramatica din lectia urmatoare. Articolul hotiirat the: the tower the school the train the table the car the time the office the apple Daca euvantul care urmeaza dupa artieolul hotiirat ineepe eu articolului hotarat este [DZi]: 2. the applc > [IYi Epl] the eye > rlYi ail 0 voeala‚ atunei pronuntia De cCIe l1111i Illllite ori 1(1I"nHII1l
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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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Executive Summary Outdoor Advertising has proved through the years to be an efficient tool for clients and Agencies in their marketing plans and strategies. As advertising expenditures increase from year to year‚ outdoor advertising is in turn increasing its market share. International budgets are interested in this media‚ considered of high impact worldwide. Where do people spend most of their time? Most countries like Bangladesh throughout the world have traffic problems‚ which lead them to
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(bubbles are a good example of this). The new product formed is the chemical change; it is more than just physical. A. Materials: a. 4 small test tubes b. 100ml beaker c. Stirring rod d. Cu e. Zn f. Mg g. MgO h. NaCl i. Cu(NO3)2 j. CuCO3 k. NaOH (4mL) l. HCl (4mL) m. Burner Fuel n. Test tube clamp o. 24 well plate p. Test tube cleaning brush q. Matches r. 96 well plate
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Title of Experiment: An Activity Series Lab MSDS: Copper‚ Cu(s) Stability- Stable. Incompatible with strong acids‚ active halogen compounds‚ chlorine‚ fluorine‚ iodine‚ bromine‚ ammonia. May react explosively with strong oxidizing agents. Toxicology-Dust may cause respiratory irritation. Personal Protection- Suitable ventilation if handling powder. Zinc‚ Zn(s) Stability-Stable. Incompatible with amines‚ cadmium‚ sulfur‚ chlorinated solvents‚ strong acids‚ strong bases. Air and moisture
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= (D30)2 / [D10 x D60] = 0.1252 / [0.55 x 0.078] = 0.36422 < 1 Cu = D60 / D10 = 0.55 / 0.078 =7.0513 > 6 If a soil is well-graded‚ it should satisfy 1 < Cc < 3 Cu > 4 (for gravels) Cu > 6 (for sand) Note that‚ from our result‚ Cc is much smaller than one. So by the constraints 1 < Cc < 3‚ we can conclude that the testing soil is not well-graded‚ but poorly graded. And the Cu obtained is 7.0513 > 6‚ which implies that the sample should be sand but
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Expense 250 Accumulated Depreciation—Equipment 250 Accounts Receivable 3900 Service Revenue 3900 b) Gil Vagel Adjusted Trial balance on June 30 Debit Credit Cash 6850 Accounts Receivable 10900 Prepaid Insurance 2640 Supplies 720 Equipment 15000 Accumulated Depreciation—Equipment 250 Accounts Payable 4230 Utilities payable 180 Salaries and Wages payable 1250 Unearned Service Revenue 1100 Common Stock 22000 Service Revenue 16300 Salaries and
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