Chemistry Questions and Answers August 03, 2020

E. What is the cell potential for thereaction Mg(s)+Fe2+(aq)?Mg2+(aq)+Fe(s) at 87?C when [Fe2+]= 3.80M and [Mg2+]= 0.210M. What follows were questions that were answered on thesame problem: Consider the reaction Mg(s)+Fe2+(aq)?Mg2+(aq)+Fe(s) at 87?C , where [Fe2+]= 3.80 M and [Mg2+]=0.210 M . Part A What is the value for the reaction quotient, Q ,

What features do all the resonance forms of a molecules or ion have in common? Choose all that apply. a) arrangement of electrons b) formal charge on each atom c) net charge on the molecule or ion d) arrangment of atoms e) none of these are common between resonance forms f) atoms present g) number of electrons

Which of the following combinations of reactants could the diagram represent? Pb2+(aq) + 2I-(aq) 2Ag+(aq) + S2-(aq) Mg2+(aq) + 2Cl-(aq) 2NH4+(aq) + SO4 2-(aq) Consider the diagram. The yellow spheres represent the cation and the red spheres the anion

Which of the following statements BEST describes theMichaelis-Menton constant K M ? (A "BEST" statement wouldbe one that applies nearly all the time, not just part of thetime.) It is a measure of the maximal rate of a catalyticprocess. It is numerically equal to the substrate concentration requiredto reach half maximal velocity for an

The equation for ATP hydrolysis is ATP yields ADP + Pi delta G*= -30.5 kJ/mol ( H20) (a) Calculate ?G for ATP hydrolysis to rank the following conditions from most favorable to least favorable. Assume a temperature of 37.0 ?C. R = 8.315 J/(mol?K). ATP Hydrolysis most favorable ATP hydroysis least favorable The choices are: muscle: [ATP]= 8.1mM;

For the following reaction: KClO2-->KCl + O2 assign oxidation states to each element on each side of the equation. I tried +5 for K, -1 for Cl and -4 for O on the reactants side, butmy homework says it's wrong. Don't know what I'm doing wrong. Itried it again and only need help finding the oxidation number forCl on the reactants side. I got +1

Draw all constitutional isomers forC 4 H 9 Br. Please use skeletal structure. a.) Draw the structure of a compound with a molecular formulaC 8 H 18 that has only primary hydrogens.

The following reaction has an activation energy of 262kJ/mol. C4H8(g) --> 2C2h4(g) At 600.0 K the rate constant is 6.1 108 s1. What is the valueof the rate constant at 840.0 K? please explain in detail. this shits confusing.

Draw the Lewis structure with the atoms arranged as HClO. Do not draw Cl with an expanded octet. The formal charge on an atom =number of valence electrons number of nonbonding electrons 1/2 the number of bonding electrons. There should be a total of 14electrons in each structure and everything should have an octetexcept for H, which has a duet.

Which element does X represent in the following expression 2512X Enter the chemical symbol of the element. 4. A 1.6 kg block of iron at 23 C is rapidly heated by a torch such that 15 kJ is transferred to it. What temperature would the block of iron reach (assuming the complete transfer of heat and no loss to the surroundings) If that same amount

Which of the following occur as the energy of a photon increases? A. the frequency decreases. B. the speed increases. C. the wavelength increases D. the wavelength gets shorter. E. None of these occur as the energy of a photon increases.

Which of the following processes are endothermic? Which of thefollowing processes are endothermic? the reaction associated withthe ionization energy of potassium. the reaction associated withthe heat of formation of CaS. the formation of F2 from its elementsin their standard states. the reaction associated with the latticeenergy of LiCl. None of

In which of the following processes is (delta)H = (delta)E?Why? (a) Two moles of ammonia gas are cooled from 325 C to 300 C at1.2atm (b) One gram of water is vaporized at 100C and 1 atm. (c) A mole of nitrogen gas reacts with a mole of oxygen gas toform two moles of nitric oxide gas in a 40L container. (d) Calcium carbonte is heated to form

Which of the following are correct for zero-order reactions?Check all that apply. View Available Hint(s) Check all thatapply. The concentration of the reactants changes nonlinearly. A higher concentration of reactants will not speed up thereaction. The rate of reaction does not equal the rate constant. The units for the rate constant and the rate

Which of the following complexes will absorb a photon with thelongest wavelength of light? [Co(NH 3 ) 6 ] 3+ [Co(H 2 O) 6 ] 3+ [Co(CO) 6 ] 3+

Which of the following combinations produce a buffer solution? Select all that apply. NH3 and (NH4)2SO4 H2SO4 and Na2SO4 HOCl and NaCl HCN and LiCN HNO2 and KNO2 NH4Cl and NaOH HF and NaF HClO4 and NaClO4

Find the atomic numbers of the as yet undiscovered next twomembers of the series. Express your answers as integers separated by a comma.

Give the structure that corresponds to the following molecular formula and 1H NMR spectrum C4H1002 0 1.36 (3H, d, J 5.5 Hz) d 3.32 (6H, s) 4.63 (1H, q, J 5.5 Hz) can you explain how to get the answer how do you use the shift, d,s,q to figure out the problem and the importance of J

Galvanized nails are iron nails that have been plated with zincto prevent rusting. The relevant reaction is Zn2+(aq)+2e??Zn(s) For a large batch of nails, a manufacturer needs to plate atotal zinc mass of 4.00 kg on the surface to get adequatecoverage. How many coulombs of charge are needed to produce 61.2 mol ofsolid zinc? Express your answer to

Which of these expressions correctly expresses thesolubility-product constant for Ag3PO4 in water? I am confused, forexample, PbCl2 would be Pb^2+ + 2Cl- = Ksp [Pb2+][Cl-] so why isn'tthis one [Ag]^3[PO43-]^4... confusing..

When the following alcohol was subjected to dehydratingconditions, two major organic products were obtained. Draw thestructures of the two major products.

When the following alcohol was subjected to dehydrating conditions, two major organic products were obtained. Draw the structures of the two major products. t HSO4 OH 1 A HO

Which of the following substances would you predict to have thehighest ?H vap ? Group of answer choices: CH 3 Cl HCl HOCH 2 CH 2 OH CH 3 CH 2 OH CH 3 CH 2 CH 2 CH 3

Draw pyruvate as it would occur at the pH of most body fluids.

Which of the following aqueous solutions are good buffer systems?[YOU CAN PICK MORE THAN ONE] 0.31 M ammonium bromide + 0.32 M ammonia 0.21 M hypochlorousacid + 0.12 M sodium hypochlorite 0.39 M hydrocyanicacid + 0.24 M sodium cyanide 0.13 M calciumhydroxide + 0.28 M calcium chloride 0.23 M hydrobromicacid + 0.19 M potassium bromide

In this exercise, you will calculate molar value of H (in kJ/mol) for dissolving NH 4 H 2 PO 4 in Part D of the Calorimetry lab. (a) What temperature change did you find for dissolving NH 4 H 2 PO 4 in Part D of the experiment? (Include the + or - sign in your answer.) +22.69 C (b) What mass of water did you find in Part D of the experiment?

Help me please!

Calculate the standard enthalpy of formation (AH) for nitromethane. Express your answer using one decimal place. IVD, , , reset shortcuts help kJmol

Determine the correct sequence of trials. First Add HCI to water and measure pH Add HCI to buffers and measure pH Add NaOH to water and measure pH Make assigned buffer(s) Add NaOH to buffers and measure pH

16) Consider the following titration curves (labeled a and b) for two weak acids, both titrated with 0.100M NaOH. Hd 14 12 10 8. 6 4 2 0 20 40 60 80 100 Volume of base added (ml.) 0 Hd (b) 14 12 10 8 6 4 2 0 20 40 60 80 100 Volume of base added (mL.) 0 a. Which acid solution is more concentrated b. Which acid has the larger K

Calculate K at 298 K for the following reaction 2 NO(g) Cl(g) 2 NOCI(g) x 10 Standard Thermodynamic Values at 298 K AG Substance NO(g) NOCI(g) NO(g) (Enter your answer in scientific notation.) N(g) Cl(g) 86.60 66.07 51 456 105.0

i CHCO CHCO HI Experiment VIII Glucose Pentaacetate CAUTION OCCH H 00 CH H H O OC CH eDglucose pentaacetate H OCCH O. CH,CO Properties of Starting Materials and Products (From Aldrich CatalogHandbook) CH.CO O OCCH H HI CH 25,3073 aDGlucose, A.C.S. reagent 492626 (dextrose) FW 180.18 mp 153158 la 52.5 to 53.0 (c10, HO trace NH,OH) Bell. 31,83

Review Constants Periodic Table Calculate Kp for each of the following reactions. You may want to reference (Pages 685685) Section 15.4 while completing this problem. Part A NO4 (g) 2 NO (g) Ke Express your answer using two significant figures. Kp Submit Part B Kp Submit Part C N (g) 3 H (g) 2 NH3 (g) Ke 3.7 x 10 (at 298 K) Express your

In Table 4 below, Fe after mixing is obtained by using MVMV This data is to be transferred to Table 5 below as the initial Fe (column 2). Similarly in Table 4 of Data sheet SCN after mixing obtained using MVMV. This data is then to be transferred to Table 5 below as the initial SCN (column 3). Test Tube Fe After Mixing (Initial Fe) 0.0025M 0.0025M

Item 5 Part A What dissolved species are present in a solution of KCN Express your answers as ion separated by a comma. Submit Part B Give Up What dissolved species are present in a solution of NaCIO4 Express your answers as ion separated by a comma. Submit Give Up

Consider the following reaction. H HC H CH HIO H HSO4 Predict the product of the reaction. Include all hydrogen atoms in your structure. Select Draw (2 2 Rings C More 0 H O Erase 2 Q

Classify each of the following diatomic species as ionic, polar covalent or nonpolar covalent. Br 0 Ionic CsBr KF NaCl HBr Polar Covalent Cao N HCI BrF Nonpolar Covalent,Categorize each of the following molecules according to what type of exception to the octet rule it is. Electron Deficient SO, NO AICI, XeF OCI BF, Odd Electron Species BeCl PF PO

When compared to the keto form, the enol form of which of the following compounds is most stable? Which compound's ? H is the least acidic? nitroethane propanenitrile propanal N , N -dimethylacetamide acetone Rank the compounds from strongest acids to weakest. To rank items as equivalent, overlap them.

I. II. CH III. IV OV IV. V. CH

Caffeine is the active ingredient in coffee, tea, and some carbonated beverages. a) Add lone pairs, as needed, to the structure of caffeine. CH3 H3C Xxx N N CH3 H b) Indicate the hybridization of the specified atoms. Be sure to consider any lone pairs you added in part a. CH3 H3C A sp sp spd spd 2 sp sp sp spd O spd H 3 sp sp O spd O spd2

A compound is 80.0 carbon and 20.0 hydrogen by mass. Assume you have a 100.g sample of this compound. Part A How many grams of each element are in this sample Enter the number of grams of carbon followed by the number of grams of hydrogen, separated by a comma (e.g.. 30.0,70.0). mass of C, mass of H 80.0.20.0 g Previous Answers Correct,Part B How

Enter the solubility-product expression for Mg3(PO4)2(s).IncludeChargs. Ksp=

Find the empirical formula of the complex iron salt, KxFey(C2O4)z nH2O using the mass percent of potassium, iron, oxalate and water. H2O=11.023 percent C2O4 =56.85 percent Fe = 11.4 percent K = 20.727 percent

Fill in the missing mass number and atomic number for each of these particles or types of radiation. alpha (?) He beta (?) e gamma y neutron n

Find the molar solubility ofSrCO 3 ( K sp =5.4 ? 10 -10 ) in the following. (a) pure water (b) 0.17 M Sr(NO 3 ) 2

The elementary reaction 2H2O(g)2H2(g) O2(g) proceeds at a certain temperature until the partial pressures of H2O, H2, and O2 reach 0.0750 atm, 0.00700 atm, and 0.00200 atm, respectively. What is the value of the equilibrium constant at this temperature

Consider the E1 reaction of the following tertiary halide add curved arros add curved arrow B is a base draw the organic product

Consider the E1 reaction of the following tertiary halide. ld curved arrow(s). Br CH3 8 Add curved arrow(s). B is a base. Br H HI B H Draw the organic product.

Find the p H of each of the following solutionsof mixtures of acids: a)0.100M in HBr and 0.115M in HCHO2 b)0.170M in HNO2 and 8.0?10 ?2 M in HNO3 c) 0.190M in HCHO2 and 0.230M in HC2H3O2 d)5.0?10 ?2 M in acetic acid and 5.0?10 ?2 Min hydrocyanic acid

Complete the following sentences describing how to solve a weak acid equilibrium problem. assumption reaction table X K initial concentration HA very large OH Kb balanced reaction equation very small final concentration HO HO A quadratic formula Step 1 Write the Step 2 Define usually of Step 3 Construct a and Step 6 Check that your the as the

Consider the following reactionoccurring at 298 K: BaCO3(s)?BaO(s)+CO2(g) A) Show that the reaction is not spontaneous under standardconditions by calculating ? G ?rxn. B) If BaCO3 is placed in an evacuated flask, what partialpressure of CO2 will be present when the reaction reachesequilibrium? C) What temperature is required to produce a carbon

The elementary reaction 2H20(g) 2H2(g)+O2(g) proceeds ata certain temperature until the partial pressures of H2O, H2, andO2 reach 0.0700 atm, 0.00200 atm, and 0.00600 atm respectively.What is the value of the equilibrium constant at this temperature?

Choose all the correct statements about glycolysis. Glycolysis is an aerobic process. Two glucose molecules are needed to initiate glycolysis. Major products of glycolysis include pyruvate, ATP, and NADH. Glycolysis is the process by which glucose is converted to acetylCoA. Glycolysis occurs in the cytoplasm of the cell.

The most common method for the synthesis of unsymmetrical ethers is the Williamson synthesis, a reaction (SN2) of an alkoxide ion with an alkyl halide. Two pathways are possible, but often one is preferred. Construct the preferred pathway for the synthesis of 2-propoxypropane from propene, with propene-derived alkyl halide and alkoxide

The most common method for the synthesis of unsymmetrical ethers is the Williamson synthesis, a reaction (SN2) of an alkoxide ion with an alkyl halide. Two pathways are possible, but often one is preferred. Construct the preferred pathway for the synthesis of 2propoxypropane from propene, with propenederived alkyl halide and alkoxide

2 50 (9) O(g) 2 SO, (g) K, 2 10 At a certain temperature, SO, (g) and O(g) react to produce 80 (9) according to the chemical equation shown above. An evacuated rigid vessel is originally filled with SO (g) and O(g), each with a partial pressure of 1 atm. Which of the following is closest to the partial pressure of O(g) after the system has

Construct the orbital diagram for nickel. Energy 4p 3d 4s 3p 3s 2p 2s 1.s 11 11 11 11 1L 1L 11 11 11 11 11 11 11 1 11 11 11 1 Answer Bank 11 1 O,Construct the orbital diagram of the Fion. Energy 3p 3.s 2p 2s 1s DOO ODO Answer Bank 1 11

Classify each of the following elementary steps as unimolecular, bimolecular, or termolecular. Reaction (a) is O unimolecular O bimolecular O termolecular Reaction (b) is 000 O O O (a) (b) (c) unimolecular bimolecular termolecular Reaction (c) is OO unimolecular bimolecular termolecular

Choose from the conversion factors given to complete the following diagram of amountmassnumber relationships for a compound. molar mass (gmol) of compound atomic mass (gmol) of element chemical formula of compound density (gmL) of compound molar ratio from balanced equation Avogadros number (moleculesmole) MASS (g) of compound AMOUNT (mol) of

Classity each property as associated with a liquid that has strong or weak intermolecular forces. Drag the appropriate items to their respective bins. View Available Hint(s) Submit rch low viscosity high surface tension low vapor pressure Strong intermolecular forces 0 695 e high vapor pressure low surface tension high viscosity low boiling point

Classify the three reactions as ionic or radical. Reaction A Reaction B Reaction C 2 HI light 2 8. continued below...,Reactions A, B, and C are radical. Reaction A is radical, Reactions B and C are ionic. Reactions A and B are radical, Reaction C is ionic. Reaction A is radical, Reactions B and C are ionic. Reactions A and C are radical,

Classify the three molecules as hydrophilic, hydrophobic, oramphipathic (amphiphilic).

Classify the three molecules as hydrophilic, hydrophobic, or amphipathic (amphiphilic). Hydrophilic Hydrophobic HC O HO OH OH O CH 3 CH 3 H Amphipathic OOCCHCCOO NH3

Classify the following linebond formulas as ketones or aldehydes. Drag each item to the appropriate bin. Aldehyde Submit Hints My Answers Give Up Review Part H H Ketone reset help

Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. Drag each item to the appropriate bin. View Available Hint(s) acidic NH CH HNCCOO H Asparagine NH CH CH HNCCOO H Glutamine basic NH CNH, NH CH CH CH HNCCOO H Arginine SH CH HNCCOO H Cysteine neutral polar CH3 HNCCOO H Alanine Reset Help neutral nonpolar,Classify

Complete this table. Note that the atomsions are not necessarily neutral. Element Se Zn Kr Mass number 76 65 83 Number of neutrons 42 36 41 Number of protons 34 31 36 Number of electrons 34 31 36 charge 2 1 0 Incorrect. The number of electrons is not necessarily equal to the number of protons. Check the charge on Se.

Choose the correct reactants and/or catalysts to complete the following reactions: the options are: 1. HBr 2. H2O and H2SO4 3. Br2 4. H2 and Pd 5. CH3Br

Hint XX Select answer Select answer A Select answer Select answer Previous Br H Br OH Un View Solution Check Ana

Complete the Lewis dot (electrondot) structure for the given neutral atoms. If you make a mistake, click the button in the drawing tool that looks like two red arrows to reset the module and clear your work. The eraser tool can also be used to delete unwanted electrons. Magnesium Sulfur click to edit Mg S

Classify each of these reactions. A single reaction may fit more than one classification. Ba(CIO3)2 BaCl,30, CaOCO, combination (synthesis) decomposition displacement doubledisplacement (a.k.a. exchange or metathesis) redox NaNO HCI NaCl HNO combination (synthesis) decomposition displacement doubledisplacement (a.k.a. exchange or metathesis)

Classify the sugars based on whether they show mutarotation or not. trehalose Shows mutarotation mannose sucrose lactose Answer Bank fructose Does not show mutarotation,Disaccharides are joined by glycosidic bonds formed between the anomeric carbon on one monosaccharide and a hydroxyl (OH) group of another monosaccharide. Identify the types of

What is the Ceq at 25C for the gaseous reaction A B 2C when KC25C 16 and A B 1.0 M Report the answer as x.x Enter text here Enter

Which of the ionic compounds below would be expected to have the highest lattice energy? MgO RbBr KF LiF

Classify each titration curve as representing a strong acid titrated with a strong base, a strong base titrated with a strong acid, a weak acid titrated with a strong base, a weak base titrated with a strong acid, or a polyprotic acid titrated with a strong base. Strong acid strong base Strong base strong acid mL of titrant Weak acid strong base

Classify the sugars as either aldoses or ketoses. CHO HCOH HOCH HOCH HCOH CHOH CHO I HCOH I CHOH CHOH CO HOCH HCOH I HCOH CHOH CHOH I CO HCOH I HCOH I CHOH CHO I HCOH I HOCH I HCOH I CHOH CHOH CO I HOCH I CHOH Answer Bank aldose ketose

Classify the following reaction as ionic, radical, or pericyclic.

Classify the following reaction as ionic, radical, or pericyclic. 190C toluene ionic radical Opericyclic H

point is reached. 108. The crystal structure of lithium sulfide (LiS), is pic tured here. The length of the unit cell is 5.88 x 10 pm. For this structure, determine appears until the normal the ions form 08. dec, with fens of Lision locate in the unit cell. holes Laffice (a) the coordination numbers of Lit and S (b) the number of formula units in

First portion are the options, second were my choices and they were labeled as wrong.

Determine whether the compounds below could be used to prepare an buffer solution. Items (6 items) (Drag and drop into the appropriate area below) acetic acid K1.8x105 Categories ammonia Kb1.8x105 carbonic acid K4.3x107 CAN be used Drag and drop here sulfuric acid K11 chlorous acid K1.1x102 CANNOT be used Drag and drop here calcium hydroxide pk1

Determine the hybridization and geometry around the indicated carbon atoms. Atom A sp hybridized sp hybridized sp hybridized linear tetrahedral trigonal planar C H3C CH3 CH B Atom B CH CH3 A sp hybridized sp hybridized sp hybridized linear tetrahedral trigonal planar Atom C sp hybridized sp hybridized sp hybridized linear tetrahedral trigonal

Decide whether the Lewis structure proposed for each molecule is reasonable or not. molecule proposed Lewis structure C103 IF 4 BeH O 0C10 0 HBe H Is this a reasonable structure If not, why not Yes, its a reasonable structure. No, the total number of valence electrons is wrong. The correct number is No, some atoms have the wrong number of

deconstruct the followingdiels-alder adduct. show what reactants, in any order, would beneeded to produce the following:

Question 6 of 10 Incorrect X JANET L. MAXWELL on Hint Deconstruct the following DielsAlder adduct. Show what reactants, in any order, would be needed to produce the following sapling Tearning Previous Give Up View Solution Check Answer Next Map Exit

Build the orbital diagram for the ion most likely formed by phosphorus. Use the buttons at the top of the tool to add orbitals in order of increasing energy, starting at the bottom with the lowest energy orbitals. Click within an orbital to add electrons. View Available Hint(s) 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 6s 6p 6d 7s 7p 7d U 3p 3s

Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HC1 and you decided the hydrogen atom was closest to the negative side of the molecule, youd enter H in the last column of the table.

For the compound MoS, what is the charge of Mo For the compound MoS2, what is the charge of S Draw the Lewis structure for MoS. Hint MoS is an ionic compound, so electrons are completely tansferred. Dont forget to put the ions in square brackets.

(a) Describe the situations when Greek prefixes are used To specify the charge of elements in the names of polyatomic compounds. To specify the number of hydrogen atoms in the formula of simple nonmetal hydrogen compounds. To specify the number of atoms of each element in ionic compounds. To specify the number of water molecules in a hydrate. To

3) Which of the following correctly represents the electron affinity of phosphorus A) P4 (g) 4e 4P (g) 101 B) P (g) P (g) e P (g) P(g) e D) P (g) e E) P4 (g) e P (g) P (g)

Consider two cells, the first with Al and Ag electrodes, and the second with Zn and Ni electrodes, each in appropriate 1.00 M solutions of their ions. a) If connected as voltaic cells in series, which two metals are plated, and what is the total potential Al(s) Ag(s) Zn(s) Ni(s) Al(s) Ag(s) Zn(s) Ni(s) E 5.14 Number b) If connected such that one

Give the conjugate base for each compound below. Acid H,CO, HS Conjugate Base NH U,Classify each of the following reactants and products as an acid or base according to the Brnsted theory CF3COOH HO acid HO CFCOO base HO CF3COO H3O CF3COOH

Spectroscopic Notation Consider the atom having the electron configuration 182s2p 3s3p. Part A Which of the following statements are correct Check all that apply. The atom has electrons in states n 2 and n 3. The atom has six electrons in the state n 2, l 1. The atom has three electrons in the energy level for which n 3. The atom has only one

I can't figure out what I'm doing wrong in the second step. Please help!

Complete the curved arrow pushing mechanism for the following Michael (conjugate) addition reaction. Use curved arrows to show conversion to the next step. H3C L H HE X 8 8 OCH3 CH3 12 Complete the structure and then add curved arrows to show the conversion to the next step. H3C 0 CH3 HOCH3 CH3 1LCH3OH

Complete the curved arrow electronpushing mechanism and predict the major organic product of the reaction when 1chloropentane is treated with hydroxide in ethanol as shown in the image. CH3CHOH H CI H.C. H CH3 D Q. Use curved arrows to show the conversion to the product. Product CI Draw the structure of the organic product formed in the

Complete the mechanism for the following reaction by adding the missing bonds, charges, nonbonding electrons, and curved arrows. 0 1 H 8H H 1L 1 H2O H8 8 0 H Draw only one curved arrow. omit H2O,H H 8 0 H H OH S H 1L HO H H J

Consider the following reactions and their heats of combustion. Compound Combustion Reaction 1butene HCCHCHCH 604CO 4HO CH3 cis 2butene trans2 butene 2methyl1 propene H3C, H HC H H H CH3 60 4CO 4HO 60 4CO 4HO HCC(CH)60 4CO 4HO 2719 kJmol 2712 kJmol 2707 kJmol 2703 kJmol,With the above information and your knowledge of alkenes, select the

Corrosion of iron in contact with water. One region of the iron acts as the cathode and another region acts as the anode. Fe oxidized at anode region of metal FeFe 2e Water drop Select Fe (aq) Electrons from Fe oxidation migrate to region acting as cathode e Fe axidized to Fe, rust (Fe,O) forms O 4H 4e 2 HO or O 2 HO 4e 40H A. What is the

Consider the molecule below. Determine the hybridization at each of the 2 labeled carbons. H H 1 H Submit CI CC C1 spd, C2 spd O C1 sp, C2 sp C1 sp, C2 spd C1 sp, C2 sp2 C1 sp, C2 sp 3 Request Answer CH3 F

Consider the dissolution of CaCl2: An 11.0-g sample of CaCl2 is dissolved in 125g of water, withboth substances at 25.0 degrees Celsius. Calculate the finaltemperature of the solution assuming no heat lost to thesurroundings and assume the solution has a specific heat capacityof .

CaCl 2 Ca 2C1 AH 81.5kJ

For which d orbital(s) do the lobes point directly at the ligands in a square-planar crystal field?

Energy Review Constants Periodic Table d2 Square planar Energies of the d orbitals in a squareplanar crystal field. Part A For which d orbital(s) do the lobes point directly at the ligands in a squareplanar crystal field Check all that apply. dzy da dzz dy dyz Submit Request Answer Return to Assignment Provide Feedback

Classify each of the molecules according to its functional group. alcohol alcohol ketone carboxylic acid aldehyde HC CH, CH H3CCHOH HCCHCHOH H3CCHOCH3 alcohol amide ether Answer Bank ester aldehyde amine halide ester amine alcohol halide ketone ketone carboxylic acid H3CCOCH2CH3 H3CNHCH2CH3 HCH H Br HCCHCH2CH3 NH H3CCH

Classify the following pair of compounds as constitutional isomers, geometric isomers, the same compound, or not isomeric.

Classify the following pair of compounds as constitutional isomers, geometric isomers, the same compound, or not isomeric. HCCHCHCH2CH3 HC CH CH CH constitutional isomers geometric or cistrans isomers the same compound not isomeric

Draw the product obtained by heating each pair of ketones in abasic solution.

0 0

e.

Determine the structures of compounds A and B in the following reaction scheme. Be sure your answer accounts for stereochemistry and regiochemistry, where appropriate. KOBu THF HBr B

Which of the following statements is most likely accuraterelating to greenhouse gases? a. The increase in average temperature of the Earth's atmosphereparallels the increase in carbon dioxide concentration. b. The only significant source of carbon dioxide gas thatcontributes to global warming is fossil fuel combustion. c. The average temperature

Determine the structure of the following compound based on itsmass, IR, and 1 H NMR spectra. Please explainhow you reached your conclusion.

E 24 8 143 71 LIL 27 58 40 60 mz 25 26 27 28 29 3 an 100 7 50 0 0 3.5 4 6 20 www 4000 3800 3600 3400 3200 3000 2800 2600 2400 2200 45 5 1.0 5 2000 Wavelength (um) 6 5.5 1800 1600 Wavenumber (cm) U 0.9 0.8 PPM 4 8 (ppm) 3 7 1400 80 8 M 1200 9 2 100 10 U 1000 11 114 1 120 12 13 W 800 14 15 16 0 myse 600

draw the structure of trans-6-bromo-3-heptene. Be sure the stereochemistry is drawn clearly.

Consider 4NH3(g)+5O2(g) 4NO(g)+6H2O(g). DeltaH=-904.4 kJ. How does each of the following changes affect theyield of NO at equilibrium? Increase, decrease or no change a) increase [NH3] b) increase [H2O] c) decrese [O2] d) decrease the volume of the container in which the reactionoccurs e) add a catalyst f) increase temperature

Draw the structure for chloric acid, HClO3. Optimize formalcharges.

The equilibrium constant for the equationAg+(aq)+2NH3(aq)????[Ag(NH3)2]+(aq) is ????f=2.5103 M?2 at 25.0 ?C .Calculate the value of ??????rxn at 25.0 ?C . ??????rxn= kJ/mol Is thereaction spontaneous under standard conditions? yes no Calculate the value of ?????rxn at 25.0 ?C when [Ag+]=0.00850 M ,[NH3]=0.156 M , and [[Ag(NH3)2]+]=0.00632 M .