Questions Asked on
November 27, 2010

  1. physics please help

    One end of a thin rod is attached to a pivot, about which it can rotate without friction. Air resistance is absent. The rod has a length of 0.59 m and is uniform. It is hanging vertically straight downward. The end of the rod nearest the floor is given a

    asked by roni
  2. Math - app of sinusoial derivatives (help+check)

    An oceanographer measured a set of sea waves during a storm and modelled the vertical displacement of waves in meters using the equation h(t)=0.6cos2t+0.8sint, where t is the time in seconds. a) Determine the vertical displacement of the wave when the

    asked by Farah
  3. physics

    a ball moves with a constant speed of 4 m/s around a circle of radius 0.25 m. what is the period of the motion?

    asked by nikkboo
  4. math 12

    Seven year-old Sarah has nine crayons; three blue, one red, two green and three yellow. a) In how many ways can she line up the crayons on her desk? b) She is to pick up some of the crayons. How many different choices of some crayons could she make?

    asked by kitkat
  5. Chemistry

    Draw a model of a solution in which water (h2o) is the solvent and carbon dioxide gas (co2) is the solute?

    asked by Jasmine
  6. physics

    What are the magnitude and direction of the electric field at a point midway between a -7.0 µC and a +6.0 µC charge 2.5 cm apart? Assume no other charges are nearby.

    asked by Anonymous
  7. algebra 2

    a trapezoid has one equal base to its height, x, and the other base is twice as long.write the expression for the area of the trapezoid as a common fraction in terms of x.

    asked by mychelle
  8. Organic chemistry

    In Hydration of 2-Ethyl-1-Butene which is the major product and which is the minor product? possible products are 3-methyl-3-pentsnol with a bp of 123C and 2-ethyl-1-butanol with a bp of 146C. Thank you!

    asked by Mandy
  9. physics help

    A 1210 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1820 N crate hangs from the far end of the beam. The angle between the beam and the horizontal is 30 degrees upwards and the angle between

    asked by james
  10. 10th grade

    A sledge loaded with bricks has a total mass of 18.0 kg nd is plled at constant speed of a rope incllined at 20 degres above the horizontal. The sledge moves a distance of 20.0 m on a horizontal surface. the coefficient of kinetic friction between the

    asked by dom
  11. Math

    A standard number cubes with the numbers 1 through 6 is rolled. Find the probability of rolling a number greater than 2.

    asked by Michelle
  12. Physics

    A baseball catcher puts on an exhibition by catching a 0.15-kg ball dropped from a helicopter at a height of 101 m. What is the speed of the ball just before it hits the catcher's glove 1.0 m above the ground? (g = 9.8 m/s2 and ignore air resistance)

    asked by Matthew
  13. chemistry

    Calculate te calue of Ksp for Ca(NO3)2 using the data below. Ba(aq) delta G0f= -561 kJ/mol NO3 (aq) delta G0f= -109 kJ/mol BaNO3 (s) delta G0f= -797 kJ/mol

    asked by Jeffery
  14. chemistry

    Calculate the molar solubility of MX2, if the Ksp=3.3x10^-8 i already asked this but im confused about one of the steps. Ksp = (x)(2x)^2 = 4x^3 = 3.3X10^-8 x = solubility = 0.00202M. but i don't understand do i substitute the x in 4x^3 3.3X10^-8 and then

    asked by roseanne
  15. math 12

    In Lisa's first-year college program she must take nine courses including at least two science courses. If there are five science courses, three mathematics courses, four language courses and five business courses from which to choose, how many different

    asked by kitkat
  16. chemistry

    Rank the relative nucleophilicity of the indicated species in ethanol. CH3COOH CH3OH CH3COO- CH3S- CH3O- THANK YOU!

    asked by George
  17. Chemistry

    The following isotopes (listed with their half-lives) have been used in the medical and biological sciences. Arrange these isotopes greatest to least decay activity. (Use the appropriate symbol to separate substances in the list.) ^3H (12.2 years) ^24Na

    asked by Jane
  18. physics help

    A 1210 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1820 N crate hangs from the far end of the beam. The angle between the beam and the horizontal is 30 degrees upwards and the angle between

    asked by james
  19. Physics

    A barbell is mounted on a nearly frictionless axle through its center. The low-mass rod has a length d = 0.27 m, and each ball has a mass m = 0.2 kg. At this instant, there are two forces of equal magnitude F applied to the system as shown in the figure,

    asked by Adam
  20. physics please help me

    A ceiling fan is turned on and a net torque of 1.6 N·m is applied to the blades. The blades have a total moment of inertia of 0.25 kg·m2. What is the angular acceleration of the blades?

    asked by yoni
  21. math 12

    The members of City Council are to vote yes or no on each of seven issues. In marking a ballot, each councilor has the option of abstaining on as many as six of the issues, but should not abstain in all seven cases. In how many ways can the ballot be

    asked by kitkat
  22. math

    working together 2 people can mow a large lawn in 4 hours. One person can do the job alone one hour faster than the other person. How long does it take each person working alone to mow the lawn?

    asked by Cerra
  23. Chemistry

    A 25 mL sample of wine is found to have a concentration of acetic acid of 0.23 M. If this was titrated with a 0.16 M NaOH solution how many mL's of NaOH would be required?

    asked by Susan
  24. algebra 2

    An arithmetic progression has 5 terms that have a sum of 200. The sum of the last three terms added to 6 times the sum of the first two terms equals zero. What is the first term?

    asked by mychelle
  25. 11th grade

    A 16.0 kg box is released on a 39.0° incline and accelerates down the incline at 0.267 m/s2. Find the friction force impeding its motion

    asked by Anonymous
  26. Physics

    A bar of aluminum (bar A) is in thermal contact with a bar of iron (bar B) of the same length and area. One end of the compound bar is maintained at Th = 75.5°C while the opposite end is at 30.0°C. Find the temperature at the junction when the energy

    asked by Chelsea
  27. Physics

    Two spheres A and B, where A has twice the mass of B, are projected at the same horizontal velocity off the edge of two different height shelves. Sphere A leaves from a height of 2.0 m. Sphere B leaves a shelf 1.0 m off the floor. If both spheres leave the

    asked by Tracey
  28. 6th grade

    rectangular prism: height 7 feet, width 4 feet and length 3 feet Find the volume Cylinder: radius 3.5 feet and height 7 feet Find the volume Van cargo space measures 8 feet tall by 5 feet wide by 13 feet deep. find the volume instruments will take up about

    asked by kim
  29. math

    A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability of choosing a marble that is not blue? I have seen so many different answers on this site to this question and am not sure. I

    asked by m
  30. math

    Initial Investment?? Annual % Rate= 8 Time to Double?? Amount after 10 years= $20,000 I don't know how to figure out the initial investment and the time to double help me please?

    asked by holly
  31. Chemistry

    In Hydration of 2-Ethyl-1-Butene which alcohol is predominant? Thanks!!!

    asked by Mandy
  32. chem

    balance the formula Cu(OH)2(s) + HNO3(aq) -> H2O(l) + fine the formula here(aq) i did the H20 but i don't know the other formula i thought it was CuNO3 but that's wrong and idk what to do with the extra O

    asked by hannah
  33. Physics

    An FM radio station broadcasts at 80.9MHz. Determine the period of the radio waves. i know period is just 1/freq. so what would i convert 80.9 MHz into???

    asked by Josh
  34. math

    for the sequence:1,6,11,16,...,the 50th term would be:

    asked by clinton
  35. physics

    A 20-lb weight is hung on an 18-in. spring stretching it 6 in. The weight is pulled down 5 in. and 5 lb are added to the weight. If the weight is now released with a downward velocity of y0 in./sec, find the position of mass relative to the equilibrium in

    asked by Viet
  36. math

    A carpeted living room and dining room area measures 32 ft by 10 ft. Mark decides to install wood flooring in the 12 ft by 10 ft dining room. By what percent has he reduced the area that is carpeted?

    asked by Anonymous
  37. MATH

    Rob can complete his bus route in 6 hours. Joan can complete her bus route in 3 hours. If they left the terminal at 3:00 am and after each completed route returned to the terminal, determine the next time they would leave the terminal at the same time.

    asked by Anonymous
  38. English

    In Invisible Man, the main character disproved of Tod Clifton and didn't like that he was selling sambo dolls. Why would he then make Clifton seem like a hero, and give a grand speech about him at his funeral? Was it because he wanted to impress others

    asked by Jordan
  39. Physics

    An FM radio station broadcasts at 80.9MHz. Determine the period of the radio waves. i know period is just 1/freq. so what would i convert 80.9 MHz into???

    asked by Josh
  40. physics

    A diving board length = 6.00 m that weighs 210 N is supported by two pillars. One pillar is at the left end of the diving board, as shown below; the other is distance d = 1.60 m away.Find the magnitude of the force exerted by the left pillar when a 90.0 kg

    asked by Cerra
  41. Chemistry2

    An electrochemical cell is created using gold and magnesium half-cells. a. Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell. You do not need to diagram the

    asked by Adam
  42. math

    You are borrowing $90,000.00 at an annual rate of 5% for 20 years . What is the total amount you will pay ?

    asked by Anonymous
  43. physics

    A rock stuck in the tread of a 57.0 cm diameter bicycle wheel has a tangential speed of 3.00 m/s. When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2. At what time is the magnitude of the rock's acceleration equal to g?

    asked by skywalker
  44. Math

    Write the numeral 436eight in base ten

    asked by Jenny
  45. Chemistry

    In hydration of of 2-Ethyl-1-Butene What important bands (include wavenumbers) would begin to disappear in an IR spectrum and what important bands would begin to appear in the IR spectrum as the reaction progressed?

    asked by Mandy
  46. ALGEBA

    A POLE IS LEANING AGANIST A TREE SO THAT THE TOP OF THE POLE IS AT A HEIGHT OF 22FT.THE BUTTON OF THE POLE IS ON THE GEOUND 6FT AWAY THE TREE.WHAT IS THE SLOPE OF THE POLE LEANING AGAINST THEE TREE

    asked by SAO
  47. physics help

    A 1240 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1970 N crate hangs from the far end of the beamThe angle between the beam and the horizontal is 30 degrees upwards and the angle between the

    asked by maria
  48. Baking

    I have a recipe for a Tunnel of SugarPlum cake. It calls for a small pky of frosting mix (Jiffy). This is no longer available here. I have researched other Tunnel recipes on the web. They also call for the frosting mix. HELP PLEASE. How and what can I

    asked by Jo
  49. physics help

    A uniform plank of length 5.1 m and weight 235 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 458 N walk on the overhanging part of the plank before

    asked by nadia
  50. Physics

    I've got a question: Imagine this scenario where someone releases a marble down an inclined ramp and at the end of the ramp a block is fixed. So the marble will roll down the ramp and it will collide with the block. Since the block is fixed,

    asked by Cheesecake
  51. holy name university

    the pressure of a mixture of nitrogen,carbon dioxide and oxygen is 150 kPa.Wat is the partial pressure of oxygen if the partial pressures of the nitrogen and carbon dioxide are 100 kPa and 24 kPa,respectively?

    asked by january
  52. physics

    A laboratory centrifuge on earth makes n rpm (rev/min) and produces an acceleration of 7.00 g at its outer end. What is the acceleration (in g's, i.e., acceleration divided by g) at a point halfway out to the end?

    asked by jessica
  53. physics help

    An automobile tire has a radius of 0.280 m, and its center moves forward with a linear speed of v = 18.0 m/s. (a) Determine the angular speed of the wheel. (Assume that there is no slipping of the surfaces in contact during the rolling motion.) rad/s (b)

    asked by john
  54. spanish

    "¿Piensan ver ese programa de entrevistas más tarde?" "Sí,_____ después de las noticias." a. la pensamos ver b. pensamos verlo c. las piensan ver d. lo piensas ver C?

    asked by Lily
  55. Chemistry

    Each of the following nuclides is known to undergo radioactive decay by production of a beta particle, ^0_-1e. Write a balanced nuclear equation for each process. (Use 'e' for an electron, 'p' for a positron, and 'n' for a neutron. Omit states-of-matter

    asked by Jane
  56. algebra 2

    A regular polygon has interior angles of 120 degrees. How many siddes does the polygon have?

    asked by mychelle
  57. math

    the dimensions of a rectangular prism are height 7 feet, width 4 feet and length 3 feet find the surface area part 2: dimensions of the cylinder are height 7 feet and radius 3.5 feet solve with a decimal then round to the nearest half foot. part 3 you have

    asked by kim
  58. physics help

    wo thin rectangular sheets (0.13 m 0.52 m) are identical. In the first sheet the axis of rotation lies along the 0.13 m side, and in the second it lies along the 0.52 m side. The same torque is applied to each sheet. The first sheet, starting from rest,

    asked by jason
  59. math

    im working with integers. a running back rushed for 129 yards through 3 quarters.in the 4th quarter the running back lost 5 yards per rush. the runing back rushed 5 times in the 4th quarter. 1) how many yards did the running back complete in the 4th

    asked by kayla
  60. English

    Thank you very much for your help. Here are the last sentences of the day. 1)The opposition between dark and white works in reverse. 2)The poet teaches men how to understand themselves better. The subject (matter?) of poetry is often a normal (common) man

    asked by Franco
  61. Physics

    A weight stretches one spring 3 in. and a second weight stretches another spring 9 in. If both weights are simultaneously pulled down 1 in. below their respective equilibrium positions and then released, find the first time after t = 0 when their

    asked by Viet
  62. English

    I need to find some fallacies in the Martin Luther King Jr. speech.. "I Have A Dream" I am happy to join with you today in what will go down in history as the greatest demonstration for freedom in the history of our nation. Five score years ago, a great

    asked by Nicole
  63. physics

    in pl spectrum what is the red shift and blue shift and also give the interpretaion

    asked by pradee
  64. English

    Can you pleae tell me which alternatives are possible? Thank you very much. 1, They believed a person (better: the individual) should be free from external rules. 2.The Romanics exalted the individual as the centre of life and art.This led to the view of

    asked by Franco
  65. Math

    Bert has a bag with 12 blue marbles, 6 green marbles, 8 purple marbles, and 4 red marbles. If he want the probability of picking a blue marble to be 1/2 what should he do?

    asked by Michelle
  66. algebra

    The formula t(n+1)over 2 will determine a triangular number, where n is a natural number. For what value of n will the triangular number 325 be found?

    asked by mychelle
  67. Eccpmonics

    What % of Americans have a net worth of $750,000?

    asked by Susan
  68. physics

    A laboratory centrifuge on earth makes n rpm (rev/min) and produces an acceleration of 7.00 g at its outer end. What is the acceleration (in g's, i.e., acceleration divided by g) at a point halfway out to the end?

    asked by jessica
  69. home economics

    S and J are trying to split 100 dollars. In bargaining round 1, S makes an offer at cost 0, proposing to keep S1 for himself and J either accepts (ending the game) or rejects. In round 2, J makes an offer at cost 10 of S2 for S and S either accepts or

    asked by Tasa
  70. Physics

    A delivery truck travels 18 blocks north, 25 blocks west and 17 blocks south. What is its final displacement from the origin? Assume the blocks are equal length.

    asked by Grayce
  71. College Math

    Find the vertex and axis of symmetry of the graph of a function. f(x)=x^2+6x+16

    asked by Ginger
  72. 9th grade geography

    What are some negative facts for the Montane Cordillera. Also I am looking for some positive and negative facts for the Prairie Ecozone and Mixed Wood Plain ecozone. Need help please thank you!

    asked by peyton
  73. physics-frictional torque

    A string that passes over a pulley has a 0.321 kg mass attached to one end and a 0.655 kg mass attached to the other end. The pulley, which is a disk of radius 9.50 cm, has friction in its axle. What is the magnitude of the frictional torque that must be

    asked by Cerra
  74. cal 1

    Find the area of the indicated region f(x)=(4-x^2) between(0,2)with 4 equal subintervals (left endpoints)

    asked by help
  75. math

    How would you describe the shape that the word represents?

    asked by MaryAnn
  76. algebra

    If f(x)=g(g(x))-g(x) and g(x)=2x-1, find f(3).

    asked by mychelle
  77. Chemistry

    Hi everyone!!! Can someone please tell me the answer to the following questions? Thank you so much!!!! In Hydration of 2-Ethyl-1-Butene 1. What was the purpose of using NaBH4 in 3 M NaOH? 2. What was the purpose of using diethyl ether in the extractions?

    asked by Mandy
  78. english

    write two paragraphs how interest rates affect our purchasing decisions underlining the topic in each paragraph

    asked by tammy
  79. chemistry

    The electrochemical cell described by the cell notation has an Eo of -0.37 V. Calculate the maximum electrical work (kJ) the cell has done if 331.73 g of Cu(s) (Molar Mass - 63.55 g/mol) reacts. Round your answer to 3 significant figures. Cu(s) l Cu+(aq)

    asked by flame
  80. math

    I need to enclose a section that is 250 square ft with a fence that cost $1.50 per yard, what dimension would i use to minimize the cost?

    asked by Daphne
  81. Science

    What roadblocks might you face, working outside the science community?

    asked by Liz Bell
  82. college, teaching

    Many programs that prepare teachers and paraprofessionals for their new career require students to create a professional portfolio as a record of their professional development. Use Appendix A to help you create a Professional Development Plan—a

    asked by Kay-c
  83. math

    Suppose that a market research company finds that at a price of p=$25, they would sell x= 53 tiles each month. If they lower the price to p=$15, then more people will purchase the tile, and they can expect to sell x = 63 tiles month’s time. Find the

    asked by Anonymous
  84. social studies

    the french and idian war was a deadly war but important. is this a good thesis statement?

    asked by majenta
  85. Game Theory

    I have a question on a fixed cost of bargaining problem. Can somebody help me?

    asked by Tasa
  86. statistics

    SAT scores are normally distributed with a mean of 1518 and a standard deviation of 325. What scores correspond to P20 and P65?

    asked by Jacob
  87. Economics

    S and J are trying to split 100 dollars. In bargaining round 1, S makes an offer at cost 0, proposing to keep S1 for himself and J either accepts (ending the game) or rejects. In round 2, J makes an offer at cost 10 of S2 for S and S either accepts or

    asked by Tasa
  88. math

    S and J are trying to split 100 dollars. In bargaining round 1, S makes an offer at cost 0, proposing to keep S1 for himself and J either accepts (ending the game) or rejects. In round 2, J makes an offer at cost 10 of S2 for S and S either accepts or

    asked by Tasa
  89. Med lab tech

    how many grams of KCL are required to make 5.0ml of a 35% w/v solution?

    asked by billie
  90. English

    Thank you very much for your corrections. Can you help me check these ones, too? 1)The poet had to show other people the truth of real emotions. To manage this task (to achieve this goal?), the poet had to use imagination, purifying (?) human emotions and

    asked by Franco
  91. math

    a running back rushed for 129 yards through 3 quarters.in the 4th quarter the running back lost 5 yards per rush. the runing back rushed 5 times in the 4th quarter. 2) how many total yards did the running back have after the 4th quarter? show work

    asked by kayla
  92. chemistry

    For which of the following will delta S be the most positve? A) Co2(g)->CO2(s) B) C6H12O6 (s)+ 6 O2(g) -> 6 Co2(g) + 6H20(g) C) Na(aq) + Cl (aq)-> NaCl (s) D) Cl2(g) + H2(g) -> 2HCl(g) E) H(aq) + OH(aq) -> H20 (l)

    asked by Jamy
  93. algebra 2

    three numbers in the ratio of 7:3:2 have a sum of 228. what is the difference between the smallest and the largest numbers?

    asked by mychelle
  94. algebra 2

    how many 7-digit phone numbers are possible if the first digit must be non-zero? answer in scientific notation.

    asked by mychelle
  95. Chemistry!!!

    3. Imagine that more than one band appeared in the GC chromatogram, but you were unable to run the standards. Instead you took the RI and corrected it to 20 oC (1.4205). RI can be used to determine the exact mole percentage of an isomeric mixture.

    asked by Mandy
  96. math

    i need to enclose a 250 square ft section with a fence that cost $1.50 per yard what dimensions would I use to minimize the cost?

    asked by Daphne
  97. microeconomics

    In order to maximize profits or minimize losses, a competitive firm will produce at the point where MC = MR. Do you agree or disagree with this statement? * i am thinking that i would agree because firms have to reach a equilibrium to off set the losses

    asked by mary
  98. chemistry

    i am doing problems for chemistry class, and some of them are Calculating square root/ Cube Root but some are 4 and 5 instead of 2 or 3. if in a problem the exponent is 4 or 5 how would i use my calculator to calculate the root?

    asked by jack
  99. Western Civ Please Help : )

    Explain the Difference during the Roman Empire on what Augustus says about himself and what Tacitus says about Augustus

    asked by Kristin
  100. Chemistry

    in Synthesis of para-Methylacetanilide What was the purpose of the sodium acetate solution

    asked by Mandy
  101. spanish

    "Quién hace tu cama?" "Pues, yo ____." a. no hago nada b. lo hago c. la hago d. me gusta hacer D?

    asked by Lily
  102. English

    I still have a few more sentences to check.I hope you can look at them, too. Thank you 1) During the industrial revolution England is interested by a rise in population which caused a growing need for clothes. This led to an increase in production made

    asked by Franco
  103. math

    There are a total of 50 houses with two floor plans. use x to repre4sent floor plan 1 and y to represent flor plan 2 write an equation. The second floor plan has 4 times as many homes than the firs pla. Write an equation to illustrate this situation using

    asked by Cathy
  104. bpa 140

    In health care, can you name some specific examples of how the function of control is implemented?

    asked by carlisa
  105. math

    8. An oceanographic research vessel comes across a volcano under the sea. The top of the volcano is 300 ft below the surface and the sea floor is -7,200 ft. What is the height of the volcano?

    asked by Jayrfoxx
  106. Algebra/ A.S.A.P

    Need help. I want to cut an extremely long problem that I just solved however I am trying to find out how -1.9 = -0.02t equals T= 93.0??? I tried dividing, multiplying and subtracting -1.9 and 0.02 together. 93.0 as the final answer was also rounded to the

    asked by Candy
  107. math

    A lottery game has balls numbered 1 through 15. If a ball is selected at random, what is the probability of selecting a ball showing an even number or the number 12? I thought the answer would be 7 even numbers and 1 for the 12 which would be 8/15 is not

    asked by m
  108. Math

    How do you find the value of x for a regular pentagon with its sides extended. The only information that they give is X to the 6th power inside of the circle at the top of the pentagon with an extended side.

    asked by Arlena
  109. Polynomials

    History of Polynomials. I need to know how polynomials was created. I search for it on google but I can't find the right one.

    asked by Jeannie
  110. algerbra

    Use the graph, showing the yearly food costs of a family. What was the decrease in the cost of food from 2003 to 2004?

    asked by vanessa
  111. math

    find all points on the hyperbola y=1/x, that are closest to the origin on (1/2,2)

    asked by help
  112. math

    a running back rushed for 129 yards through 3 quarters.in the 4th quarter the running back lost 5 yards per rush. the runing back rushed 5 times in the 4th quarter. 3) imagine that instead of losing yardage on each rush in the 4th quarter, the running back

    asked by kayla
  113. calculus

    1. e^ln3 - 2lnx 2. 2(lnx)^2 + lnx - 1 =0 3. d/dx (e^x . e^e^x)

    asked by Linda
  114. Science

    If you thought you had discovered a new element, how could you get the scientific world to accept your discovery?

    asked by Liz Bell
  115. Big Ideas in Science

    If you thought you had discovered a new element, how could you get the scientific world to accept your discovery? What roadblocks might you face, working outside the science community? How could you avoid being labeled a "crackpot"?

    asked by Liz Bell
  116. maths

    what is the empirical formula of a compound containing C(60%), H( 4.44)

    asked by Anonymous
  117. college economics

    What variables other than price and advertising are likely to affect the quantity demanded of a product?

    asked by Meritsa
  118. physics

    Lazydog and his tractor (1330 kg) are pulling a trailer (530 kg) up a 7° hill. The trailer wheels roll freely. What is the magnitude of the force in the coupling between the tractor and trailer when their velocity is 8.7 m/s up the hill and they are

    asked by sandhu
  119. Chemistry

    in Synthesis of para-Methylacetanilide What important bands (include chemical shifts) would begin to disappear in a H-1 NMR spectrum and what important bands would begin to appear in the H-1 NMR spectrum as the reaction progressed?

    asked by Mandy
  120. Chemistry

    How many moles are in 1.64 g hclo

    asked by Adam
  121. Drbob222

    Can you please help me with some questions I have on my Chemistry lab?

    asked by Mandy
  122. College Algebra

    Solve 1/3logP-2logt +2/3logr by condensing it to one

    asked by Anonymous
  123. business math

    what is P if R =37% and B= 300?

    asked by Dedra
  124. physics

    When a woman runs 140 meters north and then 60 meters west, what is the magnitude of her total displacement?

    asked by Tiffany
  125. science

    how does an ice cube melt

    asked by amy
  126. chesmistry

    about how many skittlesium nuclei would remain after three half lives if the intial sample had 500 skittles?

    asked by alex
  127. grade 9 geography

    I am doing a project on three ecozones of canada. The three which I have picked are Montane Cordillera, Praire and Mixwood plains. I am trying to find some info on their cultual and recreational activities. Does anyone know of some great websites. Thanks

    asked by peyton
  128. social studies

    Boston Masscure

    asked by kadesjsa
  129. science

    what is the standard for measuring volumes of fluids

    asked by lee
  130. spanish

    "¿Tienes que reciclar _____ en tu comunidad?" "Sí, lo tengo que reciclar." a. el cartón b. las latas c. las botellas de plástico d. los periódicos A?

    asked by Lily
  131. 9th grade geography

    I am looking for any information on the culture of the mixedwood plains.

    asked by peyton
  132. physics

    A wave with frequency 11.3Hz and amplitude 48.1 mm moves in the positive x direction with a speed of 5.6 m/s. What is the waves wavelength?

    asked by jake
  133. physics

    A wave with frequency 11.3Hz and amplitude 48.1 mm moves in the positive x direction with a speed of 5.6 m/s. What is the waves wavelength?

    asked by jake