luminol lab

2) help with the second question

TRUE OR FALSE All atoms play a role in the physicochemical and pharmacologic properties of a molecule. Sophistication and advancement in technology are the main driving forces of drug development. Organic medicinal chemistry is the study of matter, specifically, all carbon-containing compounds. A functional group will always have the same physicochemical properties, regardless of its neighboring atoms in a molecular structure. Addition of a single methyl group in a drug molecule may result to changes in physical, chemical, pharmacokinetic, and pharmacologic properties. Steric effects occur when bulky and large functional groups are near each other in a molecular structure. Molecules that are highly capable of hydrogen bonding tend to be more soluble in nonpolar solvents.

This last question is different. Just because it is different doesn't make it hard. It's actually very easy. However, you DO have to know simple properties of molecules. Using simple tests, describe one single thing you can do to each pair of compounds in order to tell which is which. ALL YOU ARE ALLOWED TO USE IS: Matches, Water, Dilute NaHCO3, Dilute HCI, and Dilute NaOH. To help you, here is an example of the question, as well as the approach/thought process: "DESCRIBE ONE SINGLE TEST YOU COULD USE TO DIFFERENTIATE BETWEEN NaCl AND C12H2m011. ANS: the one test you can perform involves matches. NaCl is inorganic and will not burn, whereas C12H22O1 WILL burn because it is organic." Simple, yes? Now apply similar thinking to these pairs. OH NH2 & OH ОН b. & OH CODH &

Using the energy balance, also called the binding enthalpy method, determines the variation enthalpy of the reaction below. Use the binding enthalpy table below. Explain your reasoning. Indicates whether this is an endothermic or exothermic reaction. CH3COCl + H2O to CH3COOH + HCl

This class of organic compounds is unsaturated with one or more carbon-carbon triple bonds. O Alkynes O Alkenes Alkanes Arenes The first member of the aromatic hydrocarbons. C6H6 C6H8 C6H10 C6H12 The molecular formula of the compound isolated by Michael Faraday from the oily residue left by illuminating gas in London street lamps. OC6H6 OC6H8 O C6H10 OC6H12

Many free radicals combine to form molecules that do not contain any unpaired electrons. The driving force for the radical- radical combination reaction is the formation of a new electron-pair bond. Consider the formation of hydrogen peroxide. 2 OH(g) → H,0,(g) Write Lewis formulas for the reactant and product species in the chemical equation. Include nonbonding electrons. OH(g) H,0,(g) Rings Select Draw Rings More Erase Select Draw More Erase H.

Methanal can be made through the partial oxidation of methane using O2 in the presence of a catalyst: CH4 (g) + O2 (g) → CH2O(g) + H,O(g) a. Use bond dissociation enthalpies to estimate the enthalpy change for this reaction. Bond ΔΗ (kJ/mol) C-H 413 O=0 498 O=C 745 0-H 463 Enthalpy change = kJ b. Calculate the enthalpy change for this reaction from enthalpies of formation. Substance A;H (kJ/mol) CH4 (g) -74.87 O2 (g) H2 O(g) -241.8 CH20(g) -115.9 Enthalpy change kJ

Please absolute configuration of these compounds .

Balanced chemical equation for the combustion of ethanol as a reference. C₂H5OH (1)+30₂ (g) → 2 CO₂ (g) + 3 H₂O(g) C-H=410 kJ/mol Selected Bond Energies O-H=463 kJ/mol How much energy is required to break the bonds in ethanol? Show your work. C-O=358 kl/mol C-C= 348 kJ/mol H-C

Please help me find the answer to this reaction. Can you tell me step by step to find this answer. Thank you very much.

Calculate the Enthalpy Change (ΔH) from average bond energies, which have been listed below in KJ/mol, for the following reaction and identify the nature of the reaction: CH3COOH + CH3OH → CH3COOCH3 + H2O [C‒H: 413; C‒C: 347; C=O: 745; C=C: 614; Cl‒Cl: 239, C‒O: 358; O‒H: 467]

Answer the questions in the table below about the shape of the phosgene (COCI₂) molecule. How many electron groups are around the central carbon atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central carbon atom? (You may need to use the scrollbar to see all the choices.) 0 (choose one) X Ś

The options  a. Argon  Xenon Helium b.  Liquid silver chloride Solid silver chloride  Silver cation and chloride anions c.  1L of pure hexane  A 1L mixture of hexane, pentane, and octane 1L of pure pentane  d.  Steam Liquid water Ice e.  Pure propane (C3H8) Pure octane (C8H18) Pure pentane (C5H12)

a. CH3CHO(g) + O2(9) CH3COOH(1) b. AgCl(s) + Br2(1) AgBr(s) + c. C12H22011(s) + O2(g) Given: Ethanal, CH3CHO(g) Oxygen, O2(g) Ethanoic Acid, CH3COOH (1) Silver Chloride, AgCl(s) Bromine gas, Br2(1) J/Kmol 3 sig. figs. J/Kmol 3 sig. figs. CO₂(g) + H₂O(1) (+) J/Kmol 4 sig. figs. Chlorine gas,Cl2(g) Silver Bromide, AgBr (s) Sucrose, C12H22011(s) Carbon Dioxide, CO2(g) Water H₂0(1) Cl₂(g) Sm(J/K.mol) 250.3 205.138 159.8 96.2 152.23 223.07 107.1 360.2 213.74 69 91

2 SO2 (g) + 2 H20O (1)- 2 H2S (g) + 3 O2 (g) AH, 1124 &J mol rxn

4.) The dissociation energy of a carbon-bromine bond is typically about 276 KJ/mol. What is the maximum wavelength of photons that cause C---- Br bonds dissociation? and which kind of electromagnetic radiation--ultraviolet, visible, or infrared--does the wavelength you calculated correspond to? Group of answer choices A) 435 nm; Blue visible light B) 570 nm; Green/yellow visible light C) 7.2 x 10-31 m; gamma rays D) 435 nm; Red visible light

What is the name of this structure?

Compare the antioxidants, what is similar about their bonding patterns?

Add electron dots and charges as necessary to show the reaction of calcium and oxygen to form an ionic compound. Neutral atoms Ions Erase Select Draw Rings More Erase Select Draw Rings More || Ca O / Ca O 0 G Ca → Q2 Q G Ca → 0 Q 2 Q