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- PHOTOSYNTHETIC PIGMENTS 1.6 0.7 Qy D 1.4 CH. 0.6 1.2 Soret 0.5 A N- 0.4 0.8 H COOCH3 0.3 0.6 phytyl bacteriochlorophyll a 0.2- 0.4 0.1 0.2 - 300 400 500 600 700 800 700 750 800 850 900 2 (nm) 2 (nm) Figure 4.7 Absorption (left) and fluorescence (right) spectra of bacteriochlorophyll a in diethyl ether. 5. Look at this figure from Blankenship's book, Molecular Mechanisms of Photosynthesis. You can see the structure for bacteriochlorophyll a, along with its absorption spectrum. a. What is the molecular shape around the labeled carbon atom? b. What is the hybridization around that same carbon? c. Based on this structure, would you expect this molecule to absorb light in the visible spectrum? Why or why not? Absorbance Fluorescence (Arbitrary units)!קרט Mn02+4A1 3Mn +2Al.03 and Meducing agent fhom the woud juabe Bunnpa49 (b) please help asap
- Series 9. Mixtures Brass Sand + CuSO4• 5H2O White wine Series 9. Mixtures (continued) Water and BaSO4 Oil and water VinegarSelect the single best answer. Consider the steps in coal gasification: C(coal) + H₂O(g) → CO(g) + H2(g) CO(g) + H₂O(g) → CO2(g) + H2(g) CO(g) + 3H2(g) → CH4(g) + H2O(g) AH'rxn = 129.7 kJ AH°rxn = -41 kJ AH'rxn=-206 kJ Identify the overall reaction for the production of methane, CH4.d) Br NaOCH3 H₂O
- 5cd (simply answer) 1. Why Kevlar are strong materials and have high melting temperature? 2. What is the application of Bakelite?O 2 0:0£ لم يتم الاجابة عليه بعد الدرجة من 2 علم هذا السؤال Which one of the following compounds has ?been named CORRECTLY اختر أحد الخيارات a. Cds cadmium(11) sulfide b. All the names are wrong с. Crog chromium(VI) oxide d. GaF3 gallium trifluoride e. TiO2 titanium dioxide 10 ig لم يتم الاجابة عليه بعد الدرجة من 2 علم هذا السؤال porates at room is described as الوقت المتبقی 5 0:05:5 اخترأحد الخيارات >1. CzH5OH(I) + HCOOH(I) → HCOOCzHs + H2O(I) 2. C₂H5OH(1)→ C₂H4(g) + H₂O(1) 3. C₂H4(9) + Cl₂(g) → C₂H4C12(1) 4. C6H6(1) + Br2(1)→ C6H5Br(1) + HBr(g) 5. 2C4H10(9) + 130₂(g) → 8CO₂(g) + 10H₂O(1) 6. 2C7H8(1) + 150₂(g) → 14CO(g) + 8H₂O(1) Match each equation above with its reaction type. Reaction Type Addition Complete combustion Elimination Esterification Incomplete combustion Substitution Reaction Number from Above → ◆ ◆ Fill in the blanks to complete the following statement. One method used to differentiate between saturated and unsaturated compounds is to add a few drops of orange-coloured aqueous bromine to samples of each organic compound. If the compound is ◆ the orange colour will quickly fade.
- 1) NaNH2 2) CH31 H2, Pd/C/ HBr 1 eq H2O, H2SO4 HgSO4Please answer questions 3a and 3b. Questions are provided in the attached image. Thank you.b) Identify the process/reaction and draw the chemical structure for each below.i. ethene to polyetheneii. hexane to benzeneiii. octane to paraffin and olefiniv. heptane to 2,2 – dimethylpentane