1. Organic chemisty(Please check)

    When drawing a kekule structure for CH3CH2OH(alcohol) do I leave the OH at the end just like it is (OH) or would it be shown as O-H? I know that to start of it would be -C- with an H on the top and the bottom as well as the left side and then connected to

    asked by Hannah on September 12, 2012
  2. organic chemistry

    Provide a structure for the following compound: C9H10O3; IR: 2400–3200, 1700, 1630 cm–1; 1H NMR: δ 1.53 (3H, t, J = 8 Hz); δ 4.32 (2H, q, J = 8 Hz); δ 7.08, δ 8.13 (4H, pair of leaning doublets, J = 10 Hz); δ 10 (1H, broad, disappears with D2O

    asked by Joseph on February 19, 2015
  3. organic chemistry

    Provide a structure for the following compound: C9H10O3; IR: 2400–3200, 1700, 1630 cm–1; 1H NMR: δ 1.53 (3H, t, J = 8 Hz); δ 4.32 (2H, q, J = 8 Hz); δ 7.08, δ 8.13 (4H, pair of leaning doublets, J = 10 Hz); δ 10 (1H, broad, disappears with D2O

    asked by Joseph on February 20, 2015
  4. chemisry

    A solid metal is described as having "AN ARRAY OF POSITIVE IONS IN A SEA OF ELECTRONS". Write down the electronic structure of a magnesium atom and use it to explain what this PHRASE means? can you please help me with this question thanks

    asked by abdul ali on August 20, 2012
  5. Chemistry

    Use principles of atomic structure to Explain why in aqueous solution, (a) potassium forms 1+ but not a 2+ ion (a) Ti3+ is colored but Sc3+ is not. (b) Ti2+ is a reducing agent but Ca2+ is not.

    asked by Lily on October 21, 2012
  6. science

    Relate their structure of a neuron to the anatomy of the cerebral cortex and spinal cord. Be sure to discuss the locations of soma, axons, dendrites, and supportive cells in each area.

    asked by no need to worry on October 29, 2012
  7. Chemistry URGENT

    I have to match the items to the statements below, and I'm stuck! My answers are in parentheses, but I know that some of them are wrong. Please help if you know how...I would GREATLY appreciate it! A Dilute B Unsaturated C Saturated D Supersaturated 1.

    asked by Lindsay on April 25, 2007
  8. Early Child Ed.

    Would you please check these questions and my answers? If they are wrong-- please let me know. 1. Early childhood professionals know that the beginning step in assisting non-mainstream children to develop literate style oral language is to: A) identify

    asked by Anonymous on November 9, 2007
  9. Calculus please help me

    f(x) = \frac{ x^3 }{ x^2 - 25 } defined on the interval [ -18, 18 ]. Enter points, such as inflection points in ascending order, i.e. smallest x values first. Enter intervals in ascending order also. The function f(x) has vertical asympototes at (? )and

    asked by Anonymous on November 4, 2014
  10. Physics

    A wind turbine has blades that sweep an area of 2000m2. It converts the power available in the wind to electrical power with an efficiency of 50%. What is the electrical power generated if the wind speed is 10ms–1? (The density of air is 1.3 kg m–3.)

    asked by Me on June 3, 2014
  11. science

    Suppose an ideal car jack has an input work 2750 J. It lifts a car 0.35 meters in 8 seconds. a. What is the output work of the jack? b. How much power is required to lift the car? c. What is the efficiency of the jack?

    asked by Anthony on March 14, 2017
  12. AP Chem

    An aqueous solution contains 4.50 g of calcium chloride, CaCl2, per liter. What is the molarity of CaCl2? When calcium chloride dissolves in water, the calcium ions, Ca^+2, and chloride ions, Cl^-, in the crystal go into the solution. What is the molar

    asked by Anna on November 4, 2008
  13. life science

    An organism's ability to maintain steady internal conditions despite changes in its external environment is called biogenesis homeostasis osmosis respiration In an organism, a virus enters, and reproduces within, a(n) host cell infection interferon

    asked by joe on May 12, 2010
  14. phy

    An engine absorbs 2000j of heat from a hot reservoir and expels 750j to a cold reservoir during each poerating cycle, (i)what is the efficiency of the engine (ii)How much work is done during the cycle? (iii)What is the power output of the engine if each

    asked by kate on July 4, 2013
  15. Differential Calculus

    The base of an isosceles triangle is 10 feet long and the base angles are decreasing at a rate of 2° per second. Find the rate of change of the area when the base angles are 45°.

    asked by Serena on May 11, 2016
  16. Math

    The length, l mm of an elastic string at time t seconds is given by l=t^3 / 3 - 4t +10 Find the instants (that is, the value of t ) when a) The length is increasing at a rate of 5 mm/Sec b) The length is decreasing at a rate of 4 mm/Sec

    asked by Aaqib zaman on January 28, 2015
  17. Calc

    For the function f(x) = 5x^6 + 6x^5 - 15x^4 a.) find where the function is increasing & decreasing b.) find where the graph if concave up & concave down c.) name all inflection points d.) find all relative extrema

    asked by Amy on February 7, 2011
  18. programming concepts

    Write a program that allows the user to input a total dollar amount for an online shopping order and computes and outputs the shipping cost based on the following schedule: Order Total Ship within USA Ship to Canada Less than $50.00 $6.00 $8.00

    asked by Anonymous on February 10, 2014
  19. programming concepts

    Write a program that allows the user to input a total dollar amount for an online shopping order and computes and outputs the shipping cost based on the following schedule: Order Total Ship within USA Ship to Canada Less than $50.00 $6.00 $8.00

    asked by Anonymous on February 10, 2014
  20. progamming concepts

    Write a program that allows the user to input a total dollar amount for an online shopping order and computes and outputs the shipping cost based on the following schedule: Order Total Ship within USA Ship to Canada Less than $50.00 $6.00 $8.00

    asked by Edgar on April 29, 2014
  21. Chemistry

    The order of the boiling points for the hydrogen halides, except for HF, is HI > HBr > HCl. The reason for this order can be attributed to a) the relative covalent bond strengths. b) differences in hydrogen bonding. c) differences in dipole-dipole

    asked by Ashley on February 1, 2012
  22. Technology for Biobased Products

    QA.A bio-PDO production process will also produce microbial biomass. A huge surplus biomass of roughly 10% of the PDO mass should be expected. A good use of this microbial biomass could be food of feed. Which organism properties disqualify their use in

    asked by Ann on November 5, 2014
  23. chemistry

    The first ionization energy of a carbon atom is 1.81 aJ. What is the frequency and wavelength, in nanometers, of photons capable of just ionizing carbon atoms? v=______s^(-1) lambda =_____nm Assuming an ionization efficiency of 47.0%, how many such photons

    asked by Anonymous on April 2, 2013
  24. chemistry

    The first ionization energy of a carbon atom is 1.81 aJ. What is the frequency and wavelength, in nanometers, of photons capable of just ionizing carbon atoms? v=______s^(-1) lambda =_____nm Assuming an ionization efficiency of 47.0%, how many such photons

    asked by Anonymous on April 2, 2013
  25. English

    1. She helped it happen for me to drive a car. 2. He let it happen to break the window. (What about these sentences? Can we use these structure?)

    asked by rfvv on November 4, 2016
  26. Engllish Grammar

    Help me to identify the sentence structure of this sentence. "Holmes is called in to help solve a mysterious problem"

    asked by Ram on March 23, 2011
  27. science

    I am in seventh grade. I need to draw the structure of a lipid, protein, carbohydrate. Is there a simple way to draw these? Thank you.

    asked by rochelle on October 26, 2008
  28. American Government, Lesson 1 Unit 3

    When the Framers created the legislative branch of government, why did they decide that this branch would have a bicameral structure?

    asked by Samantha on October 10, 2016
  29. English

    I have to do a plot outline, can someone tell me, "what the traditional pyramidal structure to map the important parts of the plot" is?

    asked by Michael on January 26, 2008
  30. English

    The family structure is by far the greatest cause of people's social dysfunctioning. do you agree or not agree with this statement and why?

    asked by priya on November 12, 2008
  31. organic chemistry

    Looking at a diagram of cortisone, where are all the stereocenters? I know there are 6 of them, I just don't know where they are in the structure. Sorry I can't provide a diagram, but I'm sure they can be found online.

    asked by Dre on February 8, 2011
  32. chemistry

    convert the condensed formula to a complete and skeletal structure of the following formula (ch3)2chch2ch3

    asked by hensha on November 1, 2014
  33. Chemistry

    What is the Lewis structure formula, electron pair geometry and the molecular geometry for SO4^2-

    asked by rose on August 7, 2013
  34. Chemistry

    What is the difference between an amino acid and a protein? How does this difference in structure affect biological function?

    asked by Laura on February 24, 2009
  35. Physic II

    a carnot heat engine operates between reservoirs at 550K and 300K, discarding 1500J of heat in each cycle. A) What is the engine's efficiency? B) How much heat is supplied to the engine by the hot reservoir in each cycle?

    asked by rujiye on April 30, 2014
  36. Calculus

    In the case of a decreasing, concave down parabola in the intervals 0 to 1 with all of the y values positive, would the actual area be less or more than the estimated area using the trapezoid rule? And would it be less or more than using the midpoint rule?

    asked by Kait on April 9, 2018
  37. science

    Suppose an ideal car jack has an input work 2750 J. It lifts a car 0.35 meters in 8 seconds. a. What is the output work of the jack? b. How much power is required to lift the car? c. What is the efficiency of the jack? I can't give a answer because I am

    asked by Anthony on March 14, 2017
  38. Algebra

    A machine has a work output of 28ax^5 joules and a work input of 7a^2x^6 joules. What is the efficiency of the machine?

    asked by Lizzie on August 5, 2012
  39. chemistry

    Choose the correct integrated rate law for each reaction order.? Choose the correct integrated rate law for each reaction order. Reaction Order Answer zero ____ first _____ second _____ a. l/[A]t = kt + l[A]0 b. log[A]t = kt +log[A]0 c. ln[A]t = –kt +

    asked by amy on May 15, 2008
  40. Reading

    The Kepler spacecraft was designed to investigate humanity last unexplored frontier the far reaches of space. The NASA space telescope looks deep into the Milky Way galaxy for the sign of habitable planet where a human can potentially thrive, in the

    asked by Anonymous on February 15, 2018
  41. social studies

    1.The new structure of the government will lead to tyranny. (5 points) Federalists Anti-Federalists

    asked by aliyah on November 10, 2012
  42. chemistry

    Draw the line structure for the compound: 2,5-dimethyl-3-hexane I believe the compound is C8H16...i am not sure!! :(

    asked by annonymous on January 31, 2011
  43. chemistry

    Draw the line structure for the compound: 2,5-dimethyl-3-hexane I believe the compound is C8H16...i am not sure!! :(

    asked by annonymous on January 31, 2011
  44. Chemistry

    Why, in terms of atomic structure, is the radius of an Na atom larger than the radius of an Na+ ion?

    asked by danny123 on November 20, 2010
  45. Physiology

    Compare and Contrast the structure and function of the epithelium of the skin and the epithelium of the intestion

    asked by ivy on May 15, 2011
  46. Organic Chemistry

    Draw the structure of: (E)-1,2-dibromo-3-isopropyl-2-hexene Can this please be explained, I don't know how to draw it.

    asked by Bebo on February 7, 2010
  47. Science

    How does this ( hypotheses) study compare to scientists who study the structure of the atom or evolution?

    asked by Kaity on September 18, 2008
  48. finance

    why is WACC important to an organization? b. What impact does WACC have on capital budgeting and structure?

    asked by kim wilson on October 29, 2007
  49. English

    Are these sentences correct: The littel boy handed Santa a list that said he wanted: a truck, a train, and a million dollars. Her mind flew so quickly-she had so much to remember-that she forgot to stop at the light First sentence: ~~correct the spelling

    asked by Lynne on July 20, 2007
  50. chemistry

    When the reaction is run in a buffer solution, however, it is pseudo-first-order in CH3I. rate = k[CH3] What is the half-life of this reaction in a pH 10.00 buffer if the pseudo-first-order rate constant for this reaction is 7.3 x10-9 s-1?

    asked by anglo on June 5, 2009
  51. chemistry

    The rate constant, k, for each reaction order is equal to _____ from the linear plot. Reaction Order Answer zero:___ first: ___ second: ___ a. slope (m) b. y-intercept c. x-intercept d. negative of the slope (-m) e. 0

    asked by jen on May 11, 2012
  52. philosphy

    1.The attorneys for the prosecution were not able to establish beyond a reasonable doubt that Hinckley was sane when he fired at President Reagan. We know this because Hinckley's own lawyers declared that at the end of the trial. So, we have no choice but

    asked by PETRA on September 28, 2017
  53. CIS

    Chocolate Delights Candy Company manufactures several types of candy. Design a flowchart using Visual Logic for the following: A program that accepts a candy name (for example, “ chocolate-covered blueberries”), price per pound, and number of pounds

    asked by Rose on August 11, 2013
  54. literature

    beyond tone a poets attiude toward his or her subject reveals to us a poems A.diction B.subject C.structure D.theme

    asked by Anonymous on July 23, 2012
  55. Organic Chemistry

    Draw the most important resonance contributor of the following structure or compound. I'd think that the double bonded carbon would be the most important? Am I right? Thank you! h t t p : / / a c e o r g a n i c. p e a r s o n c m g. c o m / e p o c h - p

    asked by MacKenzie on September 17, 2012
  56. Chemistry

    What is the name of the structure and the formal charges? All unshared valence electrons are shown. :O:: | H3C-N-CH3 | CH3

    asked by Anonymous on November 12, 2012
  57. Bio Medical Science

    What are the differences and similarities of the social structure and family values of persons from Bosnia and persons from Poland?

    asked by Sandy on February 26, 2011
  58. Social Studies

    What are the differences and similarities of the social structure and family values of persons from Bosnia and persons from Poland?

    asked by Sandy on February 26, 2011
  59. chemistry

    Carbon reacts with chlorine and hydrogen to form the compound CH3Cl. (a) Construct the structure of CH3Cl.

    asked by adex on March 12, 2013
  60. criminal law

    conspiracy is an ______ crime a. accessory after the fact b. general intent c. specific intent d. structure is it B

    asked by john on October 26, 2011
  61. science

    Sorry to ask again, but I really need to know this answer. What structure in a plant helps it to move...water or sugars?? We think that it is water..but are not 100%. Thanks, 1234

    asked by 1234 on December 17, 2009
  62. English

    What is the difference in academic papers and memos? How does it affect the tone and structure of the two papers? Im stuggling with this assignment. Please help.

    asked by Joe on March 6, 2010
  63. chemisstry

    1. Show the e- dot structure for CuCl2, I2 and H2O. State the bond type and name. Show charges where necessary.

    asked by lisa on January 8, 2012
  64. Poetry

    Beyond tone, a poet's attitude toward his or her subject reveals to us a poem's A. subject. B. structure. C. diction. D. theme.

    asked by Linda on October 15, 2011
  65. chemistry

    1. Show the e- dot structure for CuCl2, I2 and H2O. State the bond type and name. Show charges where necessary.

    asked by lisa on January 8, 2012
  66. Literature-Help me Ms. Sue

    Beyond tone a poet's attitude toward his or her subject reveals to us a poem's? A. theme B. subject C. diction D. structure I think it's A.

    asked by Unmei on July 4, 2014
  67. Government

    The structure of the lower federal court system is established by. A. congress B.the constitution. C.the Supreme court. I think c

    asked by Calvin on December 30, 2011
  68. science

    because they are the simplest units of structure and function capable of life, cells are often called the ______ of life.

    asked by cassie on March 27, 2008
  69. Eng B

    Beyond tone, a poet's attitude toward his or her subject reveals to us a poem' A. structure. B. theme C. diction D. subject It's "B"

    asked by Gen on May 4, 2013
  70. English

    Scholarly articles contain loosely related paragraphs, without a formal structure. True False I say False

    asked by Tim on October 1, 2016
  71. biology

    1) I can't finish my homework due to this one question, please tell me where I can find this question, thanks! What are levels of protein structure of Angiosperms?

    asked by Jessica on February 14, 2012
  72. Langauge

    Underline the complete compound predicate. Circle the verbs.. 1/ Millworkers peel logs or cut boards. Complete pradicate: peel logs or cut boards. Verb: peel 2/ truckers load the boards and deliver them. C.p: load the board and deliver them. V.: load 3/

    asked by Nnh on October 27, 2014
  73. science

    solar,wind,nuclear,and hydroelectric energy sources are similar in which of the following ways? A. they are all nonrenewable energy sources B. they all require an indirect use of sunlight in order to make electricity C. they are all considered alternative

    asked by help plzz on April 29, 2014
  74. math

    A TOY STORE IS ORDERING 3,000 REMOTE CONTROL CARS.THE STORE CAN ORDER THE CARS IN SETS OF 10.HOW MANY SETS OF 10 DOES THE STORE NEED TO ORDER?

    asked by VR on September 30, 2013
  75. Science

    1.Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? -a solar eclipse -a lunar eclipse -a total lunar eclipse -a penumbra 2.Which of the following statements about a lunar eclipse is true? -A lunar eclipse

    asked by Jasmine on January 15, 2014
  76. Science

    1.Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? -a solar eclipse -a lunar eclipse -a total lunar eclipse -a penumbra 2.Which of the following statements about a lunar eclipse is true? -A lunar eclipse

    asked by YRN DJ on January 4, 2016
  77. Economics

    a firm in a purely competitive industry is currently producing a 1000 unir per day at a total cost of $450. if the firm produced 800 units per day, it total cost will be $300, and it it produced 500 units per day, it total cost will be $275. Requirements:

    asked by Mary on January 27, 2013
  78. science

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements

    asked by could you check these on October 29, 2014
  79. ms. sue

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements

    asked by could you check these on October 29, 2014
  80. Science help ms sue.

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements

    asked by josh on February 25, 2014
  81. Science Help!!!!

    Solar,wind,nuclear,and hydorelectric energy sources are similar in which of the following ways? A. They are all nonrenewable energy sources. B. They all require an indirect use of sunlight in order to make electricity. C. They are all considered

    asked by callie on December 15, 2014
  82. Biology

    The type of cartilage associated with bone function and development is what? I know that the elastic cartilage contains elastin which allows for elasticity and maintains shape of certain structures. Fibro is strong and rigid (strongest of 3) Hyaline

    asked by Lena on September 27, 2010
  83. Math

    In an experiment, a pair of dice is rolled and the total number of points observed. (a) List the elements of the sample space (b) If A = { 2, 3, 4, 7, 8, 9, 10} and B = {4, 5, 6, 7, 8} list the outcomes which comprise each of the following events and also

    asked by mark on March 25, 2007
  84. Grammar

    Choose the best answer: 1. (You're, Your) sister-in-law's car is parked in (its, it's)space. Answer: Your sister-in-law's car is parked in its space. 2. Four patients (was, were) sutured with 3-0 silk, and (its, it's) their responsibility to return for

    asked by Leslie on May 13, 2011
  85. physics

    An electric motor runs at a constant rotational frequency of 3000 r/min and has the load of 75 Nm and a 5,0 Nm extra load of friction and gear. The efficiency of the motor is 78%. a) What is the input power of the motor? b) What is the work done by the

    asked by ade on September 16, 2014
  86. Physics

    FIGURE: h t t p : / / g o o . g l / a 7 j C F The figure is a PV diagram for a reversible heat engine in which 1.0 mol of argon, a nearly ideal monatomic gas, is initially at STP (point a). Points b and c are on an isotherm at T = 423 K. Process ab is at

    asked by Schnitzel on December 2, 2010
  87. Physics

    FIGURE: h t t p : / / g o o . g l / a 7 j C F The figure is a PV diagram for a reversible heat engine in which 1.0 mol of argon, a nearly ideal monatomic gas, is initially at STP (point a). Points b and c are on an isotherm at T = 423 K. Process ab is at

    asked by Elgoog on December 1, 2010
  88. Physics

    An electric motor runs at a constant rotational frequency of 3000 r/min and has the load of 75 Nm and a 5,0 Nm extra load of friction and gear. The efficiency of the motor is 78%. a) What is the input power of the motor? b) What is the work done by the

    asked by Anonymous on August 25, 2016
  89. history

    What effect did Samuel Slater's actions have on the U.S. economy? Tariff revenues on imported clothing increased. The efficiency of American textile production increased. The price of clothing produced in the United States increased. Wages for workers in

    asked by abby on April 15, 2016
  90. Physics

    I eat a 500 Calorie lunch and go hiking up a mountain afterwards. Assuming that chemical energy is converted to gravitational potential energy with 50% efficiency, approximately how many miles up the mountain can I go before I need my dinner? 0.5 miles 1

    asked by StressedStudent on October 7, 2012
  91. physics

    The pulley in the figure represents different pulleys with outer radius and inner radius indicated in the table. The horizontal rope is pulled to the right at a constant speed that is the same in each case, and none of the ropes slips in its contact with

    asked by help123 on August 8, 2011
  92. Calculus

    If any body can solve this I would be greatly appreciative. I spent an hour in the tutoring center and no one could solve. Here goes: A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a

    asked by Linda on October 6, 2011
  93. Chemistry

    Consider the reaction N2(g)+3H22NH3(g). What is the effect of decreasing the volume on the contained gases The reaction shifts toward the product gas The system reacts by increasing the number of gas molecules*** the pressure on the gases decreases

    asked by Jordan on May 4, 2016
  94. Economics.

    I need help with these question! What are three main goals sought by policymakers in the economy? Also, I have to write an essay on ways the government can effect the economy. Which is the way that provides the most impact on the economy and why. ^I need

    asked by Kasey on April 30, 2007
  95. Ms. Sue PLZ HELP!!!(Civics)

    Assume the Chilean peso is decreasing in exchange value compared to the U.S. dollar. Who will benefit most in this situation? A Chilean company that imports oil from Venezuela A Chilean family visiting relatives in the United States A Chilean exporter who

    asked by Anonymous on May 17, 2015
  96. another civics

    Assume the Chilean peso is decreasing in exchange value compared to the U.S. dollar. Who will benefit most in this situation? a. A Chilean company that imports oil from Venezuela b. A Chilean family visiting relatives in the United States c. A Chilean

    asked by another person on May 30, 2017
  97. chemistry - Bonding

    #1) Draw the following ions using a Bohr diagram: b)oxygen: i got [oxygen:2)8)]-2 (the -2 is an exponent) but the answer said [oxygen: 2)8)8)]-2...is this right? d)fluorine: i got [fluorine:2)8)]-1 and the book says [fluorine: 2)8)8)]-1..again, is the book

    asked by Sarah on May 10, 2008
  98. math

    how can you get the answer 16 using these numbers 4,3,2,1=16 you can not use any number more than one time. Help! 3-1=2 2x2=4 4x4=16 Bold face type show numbers in the problem. please help You need to post a question before we can help. Just click on the

    asked by lorraine on September 14, 2006
  99. Math

    What is the approximate percentile rank of a lightbulb that failed at 9000 hours if the number of lightbulbs is 400? The number of lightbulbs that lasted between 5400 and 9000 were about 326 lightbulbs. The mean is 7800 and the standard deviation is 1200

    asked by alice on December 5, 2012
  100. ice skater world problem

    A skater spins with an angular speed of 12.4 rad/s with her arms outstretched. She lowers her arms, decreasing her moment of inertia by a factor of 8.00. Ignoring friction on the skates, what will be the skater's final angular speed?

    asked by Tessa on April 27, 2010