explain the following observation , when glucose reacts with bromine water , the color of the...
A sealed glass tube is filled with NO2(brown) and N2O4(colorless). When the tube is inserted in an ice bath color becomes lighter, but it turns dark brown when the tube is put in a hot water bath. Explain this observation. Is this reaction exothermic or endothermic? (10 points) NO2(brown) ⇌N2O4(colorless)
What type of reaction occurs when glucose reacts with the Benedict's solution. Explain what chemical change glucose and reagent in Benedict's solution undergoes. Give the names of products.
FesCN (aq), and LeChâtelier's Explain in terms of the equation, Fe" (aq) + SCN (aq) Principle (4 ) Observation after adding KSCN: turned darker more red like original solution brown Explain in terms of the equation, Fe (aq) + SCN (aq) + FeSCN- (aq), and LeChâtelier's Principle. (ps.) Observation after adding AgNO3: Turned milky white + thieverf less transparent Using the ions present in the solution, write a net ionic equation that would explain the precipitate observed Use the above...
analyze results why did the color change of Eugenol when the bromine and ferric test took place? please explain the picture and results explain positive and negative test of bromine and ferric test c Bra ells
8. When glucose reacts with oxygen in living systems, carbon dioxide and water are produced, and a great deal of energy is liberated. C6H12O6(s) + 6 O2(g) 6 CO2(g) + 6 H2O(g) What weight of carbon dioxide can be produced from the reaction of 10.0 grams of glucose with 10.0 grams of oxygen? (a) 2.29 g (b) 2.44 g (c) 13.8 g (d) 14.7 g (e) none of these 9.Based on the balanced chemical equation shown below, determine the...
Given the following lipids, predict the results for the Solubility and Bromine Tests for various types of lipids. Enter your predictions for each What type of lipid? Fatty Acid, Triacylglycerol, Glycerophospholipid, Wax or Steroid Will the lipid be soluble in Water? Yes or No Will the lipid be soluble in CH,CI,? Yes or No . In the Bromine Test, bromine adds to carbon-carbon double bonds in carbon chains. If the bromine reacts, the red-orange color will fade. For each, will...
2. A colorless crystalline compound when dissolved in water formed a colorless solution . This compound was heated in a clean, dry test tube. This heating produced several drop- lets of water on the upper region of the test tube. The residue was dissolved in water and formed a yellow-brown solution. a. Determine if this colorless crystalline compound is a true hydrate or not. b. Give reasons.
4. CuO (s) + HCl(aq) → CuCl2 (aq) + _ H20 (1) net ionie equation: Observation: turned wwe Reaction Type: What is in the solution after the reaction is complete? 5. Mg(s) +_ CuCl2 (aq) → __Cu (s) + _ MgCl2 (aq) _ Mg(s) + HCl(aq) → H2(g) + __MgCl2 (aq) net ionic equation for each of the above reactions: reactions: Observation: Changing color turned light blue Reaction Type: What happens when magnesium is added? ob teed pill due turned...
2. (a) What is the formula and color of the complex that forms when Fe" reacts with 1,10- phenanthroline? (b) This complex absorbs strongly at which wavelength (in nm) of visible light? Indicate the color of light having this wavelength. (c) Is the color of the complex the same as th color of the light of maximum absorption? Would you expect them to be the same? Explain 3. What is the molar mass (in g/mol) of Fe(NH)(SO4): 6 H,0? 4....
C. Complex Ion Equilibria 5.Explain the color change that occurred when water was added in Step 2 of the procedure. 6.Explain the color change that occurred when the diluted solution was heated. i.How did increasing the temperature affect the value of Kc? ii.What is the sign of ΔH in Reaction 7? Co(H2O)6^2+ (aq) + 4Cl- (aq) <——> CoCl4^2+ (aq) + 6H2O