or the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7? D

22,466 results
  1. chem

    draw the lewis structure for NO2- including any valid resonance structures. which of the following statements are true? a. the nitrite ion contains 2 N-O bonds that are equivalent to 1 1/2 bonds. b. the nitrite ion contains 2 N=O double bonds c. the

  2. Economics

    Two investors are each issued one bond with the same face value, maturity date, and yield. After both bonds have reached maturity, it is discovered that one of the bondholders received a greater total return on her investment. If all expected payments were

  3. Chemistry

    Use the reaction and bond information to answer the question. C2H6 → C2H4 + H2 Reactant bond energies: H–C = 413 kJ/mol, C–C single bond = 347 kJ/mol Product bond energies: H–C = 413 kJ/mol, C=C double bond = 614 kJ/mol, H–H = 432 kJ/mol Based on

  4. Chemistry

    Anthracene is a yellow, crystalline solid found in coal tar. Complete this structure for anthracene, C14H10, by adding bonds and hydrogen atoms as necessary. What type of hybrid orbitals are utilized by carbon in anthracene? >>sp3 How many σ bonds and π

  5. Chemistry

    The chemical potential energy of bond A is greater than the chemical potential energy of bond B. Which statement best explains this observation?(1 point) a-The atoms in bond A are larger than the atoms in bond B. b-The atoms in bond A have fewer bonds

  6. Chemistry

    Rank the carbon-carbon bonds in order of decreasing bond length. Rank carbon-carbon bonds from highest bond length to lowest. To rank bonds as equivalent, overlap them. 1,2,3

  7. Math

    The Garraty company has two bond issues outstanding. Both bonds pa $100 annual interest plus $1,000 at maturity. Bond L has a maturity of 15 years and Bond S a maturity of 1 year. A). What will be the value of each of these bonds when the going rate of

  8. chemistry

    Which of the following happens when an ionic bond is formed? A. One atom pulls an electron from another atom. B. Two atoms attain equal electronegativities. C. One atom becomes more electronegative than another atom. D. Two atoms share an electron. - Which

  9. Chemistry

    1. How much energy must be absorbed to break the bonds of the 2 molecules of HCl? 2. How much energy is released when the bonds of H2 and Cl2 form in the products? 3. What is the total energy of the reaction? (Use the formula: Total bond energies of

  10. Chemistry

    Select the true statements regarding the resonance structures of formate. HCO2 Check all that apply: Each oxygen atom has a double bond 50% of the time. The actual structure of formate is an average of the two resonance forms. Each carbon-oyxgen bond is

  11. Chemistry

    Compare the bond enthalpies of the nitrogen-nitrogen single, double, and triple bonds. Based on this information, what is the average pi-bond contribution to bond enthalpy? single: 163kj/mol double: 418kj/mol triple: 941kj/mol

  12. Chemistry

    Hey guys I’m struggling, the reaction given is 2CO+O2–>2CO2 It says current monoxide and oxygen combine to produce carbon dioxide. The total bond energy of the products is 1472kJ. The bond energy of each carbon oxygen bond in carbon dioxide it is____.

  13. science

    A substance in a solid at room temperature. It is unable to conduct electricity as a solid but can conduct electricity as a liquid. This compound melts at 755 degrees celsius. Would you expect this compound to have ionic bonds, metallic bonds, or covalent

  14. Science

    1) Which of the following is true about photosynthesis? A. It is an exothermic reaction B.It is a endothermic reaction ***** C.It produces carbon dioxide D. It occurs in animals 2) Atomic Theory is A.Subject to change if new information is discovered B.A

  15. Chemistry

    "Given that the bond enthalpy of the carbon-oxygen bonds in carbon monoxide and carbon dioxide are 1073 kJ/mol and 743 kJ/mol respectively, and that of the bond in the oxygen molecule is 496 kJ/mol, calculate the enthalpy change for the combustion of 1

  16. Science

    Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) would be attached to one another. In carbon dioxide (CO2), how is the compound structured? (Use “–” to represent a single bond

  17. Chemistry

    Draw the best Lewis structures for NO+, NO2-, NO2H, and NO3-. Based on the Lewis structures, list all of the the N-O bonds lengths in order of shortest (1) to longest (5). N-O bond length in >>> 2 N-O double bond in NO2H >>> 1 N-O bond length in NO3- >>> 4

  18. Chemstry

    What is the structure of N4O, where the 3 nitrogen bonds have different bond lengths and the N=O bond is a double bond. I just don't get it

  19. chemistry--please check

    1. What type of bond holds the atoms together within a single molecule of water? a. Hydrogen bonds b. Nonpolar covalent bonds c. Polar covalent bonds *** d. Ionic bonds 2. Where are covalent bonds found? a. Both between and within organic and inorganic

  20. science//chemistry

    Use the bond energies to answer the question. H–H = 432 H–O = 467 O–O = 146 O=O = 495 H2 (H–H) combines with O2 (O=O) to become hydrogen peroxide (H2O2) bonded as such: H–O–O–H. Which option shows the difference in total bond energy between

  21. Science!

    To form an oxygen molecule (O little 2) two oxygen atoms share two pairs of electrons. What kind of bonds shown below by the electron dot diagram of O little 2? Choose all that apply. Diagram . . . . O = O . . . . A. Covalent bond B. Ionic bond C. Single

  22. biology/science

    Oxygen attracts electrons more strongly than hydrogen does. What kind of bond forms between the two hydrogen atoms and single oxygen atom that form a water molecule? A. A metallic bond B. A hydrogen bond C. An ionic bond D. A polar bond Currently stuck

  23. Chemistry

    In the correct Lewis structure for SO3 shown below, there are two S-O single bonds and one S-O double bond. Explain why the S-O bond distances are all the same.

  24. chemistry

    A pair of electrons shared by two atoms form a what? a-metallic bond b-double covalent bond c-single covalent bond d-an ionic bond

  25. AP Chem

    use simple structure and bonding models to account for each of the following: A. the bond length between the two carbon atoms is shorter in C2h4 then in c2h6. B.the bond lengths in SO3 are all identical and are shorter than a sufur oxygen single bond. C.

  26. chemistry

    Methane burns in oxygen. the equation below represents this reaction CH^4 + 2O^2 -> CO^2 + 2H^2O O=O bond = 500 k/J C=O bond = 800 k/j H-O bond = 460 k/J 1) Calculate the bond energy in 1 mol of carbon dioxide? 2) Calculate the bond energy in 2 mol of H2O?

  27. Chemistry

    The bond energy of the O2 molecule is 495. a) calculate the minimum frequency and max wavelength of light required to break this bond. b) how many photons of this wavelength would it take in order to break open the bonds of all the oxygen molecules in a

  28. Science

    To form an oxygen molecule (O2), two oxygen atoms share two pairs of electrons. What kind of bond is shown by this? Select all which apply. Ionic Bond Single Bond Double Bond Covalent Bond Triple Bond C and D?

  29. CHEM

    Which answer best describes an O_3/ozone molecule: 1. Each atom in ozone is connected to another atom by 1.5 bonds. 2.The double bond in ozone switches back and forth between the two outer oxygen atoms. 3.An ozone molecule contains one single bond and one

  30. Chemistry

    "For which of the following equations is the value of delta H equivalent to the bond enthalpy for the carbon-oxygen bond in carbon monoxide? A. CO(g)-> C(g) + O(g) B. CO(g)-> C(s) + O(g) C. CO(g)-> C(s) + 1/2 O2(g) d. CO(g)-> C(g) + 1/2 O2 (g)" I'm

  31. Chemistry

    Which option correctly defines an alkyne? a hydrocarbon in which at least one carbon atom makes a triple bond a hydrocarbon in which at least one carbon atom makes a bond with an oxygen atom a hydrocarbon in which at least one carbon atom makes a double

  32. environmental science

    in a glucose molecule, the carbon dihydrogen bond is a… A. Weak energy bond B. strong energy bond C. negligible energy bond D. Unknown energy bond

  33. Chemistry (bond energies)

    Why is it possible to have an accurate value of the energy of a hydrogen-hydrogen bond, but not of a carbon-oxygen bond? I know carbon and oxygen can form both double and single bonds, and hydrogen can only form single bonds. But apparently C=O has two

  34. Chemistry pretty urgent!!!!!!!

    Chemical bonding question! The partial Lewis structure that follows (Figure 1) is for a hydrocarbon molecule. In the full Lewis structure, each carbon atom satisfies the octet rule, and there are no unshared electron pairs in the molecule. The

  35. Chem 1

    Given the bond energy data below, which is the best prediction for the bond energy of the bond between the nitrogen and the oxygen atom in N2O? bond energy (kJ/mol) N-O single bond 201 N-O double bond 607 Indicate if it will be the single bond, double bond

  36. Chemical Bonding

    Predict the type of bond present between carbon and suffer in vulcanized runbber? Is that ionic. Please tell me how I can figure out what bonds are present in different chemical reactions. Like phospherous nad oxygen in a DNA molecule. CS bond is covalent.

  37. Science

    Which is most likely to be a part of an ionic bond? An atom with no valence electrons An atom with one valence electron An atom with two valence electrons An atom with three valence electrons To form an oxygen molecule , Two oxygen atoms share two

  38. chemistry

    Carbon is able to form large numbers of organic compounds because carbon can A.form 4 bonds B.form single, double and triple bonds C.form chains, rings, spheres and sheets D.the carbon-carbon bond is very stable E.all answers are correct

  39. Science

    A picometer (pm) is equal to 1 x 10^-12 m. The O-H bond lengths in water are 95.8 pm,while S-H bond lengths in dihydrogen sulfide are 135 pm. Why are S-H bonds longer than O-H bonds? Is it because Sulfurs mass is greater than Oxygens mass? Please correct

  40. O-Chem 253

    I hydrolized the following compound: cis-norbornene-5,6-endo-dicarboxylic anhydride then took the cis-norborene-5,6-endo-dicarboxylic acid and added H2SO4 to it (warmed it up and cooled it) then added drop by drop water (then I reheated the mixture and

  41. Chem Help!

    The presence of 11-cis retinal, C20H28O, in cells in the eye is important for vision. The structure of retinal includes an aldehyde group, a cyclohexene ring and a long aliphatic side chain, in which a carbon-carbon double bond exists between carbons

  42. Chemistry

    Given a C=O double bond, how do you determine the length of the bond in different molecules using resonance structures? I know single bonds are longer than double bonds...but how do you distinguish between lengths of the same double bond in different

  43. Chemistry

    Which statement about carbon-carbon bonds is correct? A) Carbon has an unusually high proton count. This causes the nucleus to attract bonding electrons more and results in an unusually strong bond. B) Carbon has unusually high electronegativity. This

  44. Science Help!

    Two nonmetals from Group 16 are likely to form a(n) A. Metalic bond. B. Double bond C. Ionic bond D. Covalent bond Is the answer C? Thank you

  45. Chemistry

    Which of the statements correctly describes cis isomers? The carbon chain enters and leaves the single bond on opposite sides of the molecule. The carbon chain enters and leaves the single bond on the same side of the molecule. The carbon chain enters and

  46. Chemistry

    Select the best correct statement below that explains why all three bonds in NO31- have the same length, instead of having a different bond length for the double bond than the single bonds between N and the oxygen atoms. a. bond lengths for double bonds

  47. Bio-Chemistry

    Which compound is capable of donating a proton (H+)? A. Acetic acid B. Sodium hydroxide C. Acetylene D. Pentane E. Cyclohexane Which of the following statements is not true of a C-C triple bond? A. Longer bond length than a C=C double bond. B. 180 degree

  48. Chem URGENT!!

    Which bond is most polar? F-Cl O-P O-S F-F Si-O Which species has the shortest carbon/oxygen bond? carbon monoxide carbon dioxide carbonate anion all carbon/oxygen bonds have same length Plz Help me with this....I need to see if I answered it right I put

  49. chemistry

    in a 300-500 word essay distinguish between an ionic bond, a covalent bond, hydrogen bond, a single bond, a double bond, and a triple bond. Explain the behavior of the electrons in each type of bond. Give examples of compounds that result from both ionic

  50. alkanes!

    What is meant when we say that alkanes are saturated? Carbon has four bonds. When all the bonds are occupied with hydrogen atoms(no double or triple bonds), the molecule is said to be saturated. CH4 is saturataed. CH3CH3 or C2H6 is saturated. There is a

  51. economics

    1. Consider the following four debt securities, which are identical in every characteristic except as noted: W: A corporate bond rated AAA X: A corporate bond rate BBB Y: A corporate bond rated AAA with a shorter time to maturity than bonds W and X Z: A

  52. Chemistry

    Which pair of elements would form a bond with the greatest polarity? Sulfur (S) and oxygen (O) will form a bond with the greatest polarity because they have the least difference in electronegativity, thus, forming a polar covalent bond. Fluorine (F) and

  53. Chemistry

    Can someone tell me if this makes any sense or if I need to start over. I am not sure if it even answers the question. Why is the benzene molecule represented as “a flat cyclohexane with a ring inside?” The benzene molecule is represented as “a flat

  54. chemistry

    Compare the three types of bonds based on valence electrons. Explain why S-H bond lengths are longer than O-H bond lengths. Which element has a greater bond energy, oxygen or nitrogen and why. Determine if the following compounds are likely to have ionic

  55. chemistry

    These are short and simple. :) I've included my answers, tell me if I am wrong please. CH3 is attached to a carbon on a pentane ring. Is the hybridization of the carbon sp3? NH connects a benzene ring to two benzene rings. Is the hybridization of the

  56. finance

    Below are three different pairs of bonds and their recent yields. Pick one pair (pairs are labebed 1, 2 and 3 below) and 1) explain the primary factors that contribute to making the yields of the two bonds in your pair differ. While there may be a single

  57. Chemistry

    Explain the difference in bond lengths of N2, O2, and F2. Ans: I assume it's because of bond order (single, double, and triple bonds). Explain the difference in bond lengths of HF, HCl, and HBr. Ans: I'm not sure about this one???

  58. Finance

    Rainier Bros. has 12.0% semiannual coupon bonds outstanding that mature in 10 years. Each bond is now eligible to be called at a call price of $1,060. If the bonds are called, the company must replace them with new 10-year bonds.The flotation cost of

  59. Finance

    Rainier Bros. has 12.0% semiannual coupon bonds outstanding that mature in 10 years. Each bond is now eligible to be called at a call price of $1,060. If the bonds are called, the company must replace them with new 10-year bonds. The flotation cost of

  60. science

    1. which of the following is true about phtosynthesis? a. it is an exothermic reaction b. it is an endothermic reaction c. it produces carbon dioxide* d. it occurs in animals 2. atomic theory is a. subject to change if new information is discovered b. a

  61. Anatomy

    Olive oil contains unsaturated fat. It is a liquid at room temperature because 1) *** the fatty acids do not contain carbon-to-carbon double bonds. 2) carbon-to-carbon triple bonds exist within the fatty acids. 3) the fatty acids are packed very tightly

  62. chemistry help

    for the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7?

  63. chem post

    or the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7?

  64. Chem repost

    or the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7?

  65. chem

    or the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7?

  66. chemistry please

    or the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7?

  67. Chemistry

    Consider the Lewis structure for the major resonance form of PCS–. (Note that carbon is the central atom.) The structure shows: a. A phosphorus-carbon triple bond and a carbon-sulfur single bond. b. A phosphorus-carbon double bond and a carbon-sulfur

  68. repost chem

    or the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7? D COUNT is electrons in the d orbital, and i

  69. thermochemistry

    what is the enthalpy change in kilojoules for the combustion of 1 mol of ethanol, C2H5OH (l), to form gaseous carbon dioxide and gaseous water? use bond energies to calculate your answer. (hint: there is a double bond in carbon dioxide and oxygen) the

  70. Chemistry (Check)

    True, False, or Sometimes true 1)A bond in which one atom contributes both bonding electron is called a polyatomic covalent bond.(True) 2)Carbon forms four single covalent bonds with other atoms. (Fales) True, False, or Sometimes true 1)A bond in which one

  71. chemistry

    List the following bonds in order of increasing ionic character. (Enter your answer in the format H-O for the hydrogen-to-oxygen bond in H2O. Use the appropriate symbol to separate substances in the list.) the barium-to-fluorine bond in Ba-F the

  72. UCI Chemistry Webworks

    SPARTAN: Using the bond lengths recorded in Table II determine bond order and the major resonance structures of the following: A. For CVOH, the C-C bonds are longer than the bond lengths found in . (Use i, ii, iv, etc. for your answer) B. For CVOH, the C-N

  73. Chemistry-Polarity

    I am having trouble understanding polarity. I think I understand what it is - when a chemical bond occurs and there is or is not a resulting charge on the molecule. And the book says that the amount of polarity is the difference in the electronegativity

  74. physics

    The mass of a carbon atom is 2 x 10 ^ -26. What is the kinetic energy of a carbon atom moving with a speed of 500 m/s? I got 2.5 x 10^-21 which is correct. The second question states: Two carbon atoms are joined by a spring-like carbon-carbon bond. The

  75. Science

    10. Metal cations are atoms that have a positive charge. What type of bond is a metal cation likely to form? (1 point) covalent bond double bond single bond ionic bond my answer is d

  76. finance

    Below are three different pairs of bonds and their recent yields. Pick one pair and initiate a thread in the forum where 1) using the textbook plus other reference material you will explain the primary factors that contribute to making the yields of the

  77. Chemistry

    How do you know if you use a single, a double, or a triple bond when drawing the Lewis structure of a compound? How do you know if a bond is covalent or ionic?

  78. finance

    Consider the following four debt securities, which are identical in every characteristic except as noted: W: A corporate bond rated AAA X: A corporate bond rate BBB Y: A corporate bond rated AAA with a shorter time to maturity than bonds W and X Z: A

  79. Chemistry

    Hope you don't mind I have 3 more that I don't understand 1)Draw the structure of the reaction product of 2-methyl-1pentene with H2 in the presence od platinum catalyst 2)Draw the structure of 4-methylcyclohexanol 3)Draw the structure of 2,3-dibromotoluene

  80. Finance

    Heinz Corporation bonds carry a coupon of 8% and will mature in 5 years at $1,000. Newly issued 5-year bonds with similar characteristics are yielding 4%. Calculate today's market price of the Heinz bond. Compute your answer, submit all your work, then

  81. Finance

    Please help me out this problem! :) suppose that I buy a 10 yr bond today for $1000 and the interest rate when the bond is issued is 5 percent. the day after I buy the bond, the market interest rate on 10yr bonds rises to 7percent. if I keep the bond for

  82. ap biology

    Molecules that result from this bond do not dissociate in water because its atoms are not charged and, therefore, not attracted to the negative or positive ends of the water molecule. H-bond ionic bond nonpolar covalent bond polar covalent bond I am

  83. Organic Chemistry

    Determine bond length and bond strength? The picture of the problem is shown here: oi52[insert dot]tinypic[insert dot]com/jfgnb6[insert dot]jpg I got the following: I think that the strongest bond is the triple bond (A). I think that the shortest bond is

  84. chemistry help

    or the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7?

  85. CHEM HELP :(

    The presence of 11-cis retinal, C20H28O, in cells in the eye is important for vision. The structure of retinal includes an aldehyde group, a cyclohexene ring and a long aliphatic side chain, in which a carbon-carbon double bond exists between carbons

  86. Chemisty

    Describe the bond length and bond energy of carbon-carbon bonds in single, double, and triple bonds.

  87. Resonance structures

    I'm trying to figure out some incorrect answers on my last test. I'll try to explain what the original structure looks like and hope you can decipher it. It is a cyclohexane with two double bonds. Carbon # 1 has a double bond to its left and none to its

  88. Chemistry

    SO2 can be drawn as a molecule which satisfies the octet rule (using one double bond and a single bond) or as an expanded octet (using two double bonds). A measurement of the S-O bond distance demonstrates that the two bond lengths are identical. Does this

  89. Chemistry

    Can someone arrange for the strengths of the bonds below for me please? lone pair, single bond, double bond, triple bond Thanks

  90. Chemistry

    the ending in "-yne" is used for hydrocarbons with A. only single bonds B. at least one double bond C. at least one triple bond D. only double and triple bonds

  91. sci

    Two nonmetals from Group 16 are likely to form a(n) • metallic bond. • double bond. • ionic bond. • covalent bond.

  92. Chemistry

    To clarify, a triple bond between carbon and oxygen is more stable than a triple bond between carbon and nitrogen because oxygen is more electronegative. Is my understanding correct?

  93. Chem- Dr. Bob!

    Posted by Rachel on Thursday, January 20, 2011 at 3:57pm. Does anyone know where I can get an image of the valence bond model for maleic acid? ie. showing the pi and sigma bonds and indicating the hybridization (sp2, sp3.. ) OR could someone describe these

  94. chemistry

    These are short and simple. :) I've included my answers, tell me if I am wrong please. CH3 is attached to a carbon on a pentane ring. Is the hybridization of the carbon sp3? NH connects a benzene ring to two benzene rings. Is the hybridization of the

  95. Economics - Bonds

    The Garraty company has two bond issues outstanding. Both bonds pa $100 annual interest plus $1,000 at maturity. Bond L has a maturity of 15 years and Bond S a maturity of 1 year. A). What will be the value of each of these bonds when the going rate of

  96. Chemistry

    What are charateristic of a ionic bond and a chemical bond? Answered below for characteristics of ionic bonds. I don't understand characteristics of chemical bond since an ionic bond is a chemical bond. Perhaps you can rephrase your question. For my

  97. Chem

    The presence of 11-cis retinal, C20H28O, in cells in the eye is important for vision. The structure of retinal includes an aldehyde group, a cyclohexene ring and a long aliphatic side chain, in which a carbon-carbon double bond exists between carbons

  98. Chemistry

    I have a diagram that I have to identify for homework. The structure shows an "R" connected with single bond to carbon(in the middle)-which in turn is connected to OH with single bond.-The carbon in the middle has a double bond with Oxygen on the top. The

  99. org chem

    describe the hybridization (sp3, sp2, sp) of the following bonds. BH3 (all single bonds) Is it sp2? H-C triple bond C-H Is it sp? A double bond with two methyls connected at each end Is it sp2? Please Help ASAP

  100. Finance

    Heinz Corporation bonds carry a coupon of 8% and will mature in 5 years at $1,000. Newly issued 5-year bonds with similar characteristics are yielding 4%. Calculate today's market price of the Heinz bond. Compute your answer, submit all your work, then

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