Questions Asked on
March 1, 2018

  1. Chemistry

    Can diborane (B2H6) react with an alkene in a Hydroboration reaction or its BH3 the one that reacts so the splitting of diborane to borane has to be considered because I heard theyre the same?

    asked by Help
  2. math

    a rectangular cardboard, 15 cm by 50 cm is cut into smaller squares. What is the least number of such square pieces?

    asked by marlon
  3. math

    edna sells mangoes in bags 5-kg and 10-kg. she has a total of 250 kg to sell. If she sells twice as many bags of one than the other, and all the mangoes were sold, how many bags of 10 kg mangoes each are sold?

    asked by marlon
  4. As chemistry

    A SAMPLE OF ANTIMONY, Ar=121.8, WAS ANALYSED AND WAS FOUND TO CONSIST OF 60% OF 121Sb AND ONE OTHER ISOTOPE. DETERMINE THE MASS NUMBER OF THE OTHER ISOTOPE IN THE SAMPLE OF ANTIMONY. please help I'm really stuck, Chemistry - bobpursley Saturday, September

    asked by 0oooooooo0
  5. Chemistry

    How many chloride ions are present in 1.7grams of magnesium chloride crystals?

    asked by Favour
  6. Genetics

    Given the following portion of a double stranded DNA molecule, 3’GATCTCGATGTCGAGATC5’ draw the bands as they would appear on a Sanger DNA sequencing gel using the following primer 5’GATCTCGA3’

    asked by Kay
  7. math

    If the difference between 21 and k is 48. Find the value of K #Please anyone to help me this question# Can the value of K be -27.

    asked by kelvin
  8. Language Arts

    It shall flash through coming ages, It shall light the distant years; And eyes now dim with sorrow Shall be brighter through their tears IT shall flush the mountain ranges, And the valleys shall grow bright; It shall bathe the hills in radiance, And crown

    asked by Yay
  9. Math

    Two cones are similar Cone 1 r=5 h=15 Cone 2 r=? h=18 What is the length of the radius of cone 2? is it 7?

    asked by Josh
  10. Grammar

    The trip led to an argument between Helen and ? a. I. b. me. (A) It was ? who demanded an apology from the newspaper. a.we b.us (B) We appreciated ? writing a personal letter to explain his stand on the issue. a.his b.him (B) The most outspoken critics

    asked by Anonymous
  11. English

    Because of _____ our team scored five goals. a. he and I b. him and me (A) Only two photographers, Josh and _____, received field passes. a. she b. her (B) I protested because I felt I was as good a photographer as _____ a. they.b. them. (B) All of _____

    asked by Anonymous
  12. Math

    Mno~pqr for each of the following angles name the angle that is cronguet.please give me the unit test answers for lesson 13 math 7 unit 8-geometry

    asked by Birdie
  13. Math

    If there were approximately 196 million liscened drivers in 2003,which is closest to the number of drivers who were less than 30 years old ?

    asked by Birdie
  14. English grammar

    I have some duties. I must perform them Combine the sentence using to Plus infinitive

    asked by Mohana
  15. Math

    Are you able to classify polygons by their sides and angles

    asked by Dawn
  16. Chemistry

    CO(g) + 2H_2(g) CH_3OH (g) deltaH=-90.7kJ Methanol is prepared industrially from synthesis gas (CO and H_2) Would the fraction of methanol obtained at equilibrium be increased by raising the temperature? Explain. Thank you :)

    asked by Paula
  17. math

    Dominique drove home from work at an average speed of 36 miles per hour. If the distance from her house to her workplace is 5.4 miles, how long did her commute take

    asked by athena
  18. English

    Ok if the source said Parents often want to consult with doctors over the phone in off hours to determine if a child needs to be seen. and I wrote Parents may call pediatricians after hours to see if they should bring in their child. Is that plagiarism.

    asked by wes
  19. Calculus

    A rectangular page is to contain 97 square inches of print. The margins on each side are 1 inch. Find the dimensions of the page such that the least amount of paper is used.

    asked by Ari
  20. Chemistry

    Suppose you had sulfur hexafluoride as your unknown. It has a cost of $200 for 5 pounds of the substance. If your syringe has a volume of 125.0 mL, the room temperature was 78F, and the pressure was 755 mmHg, what would it cost to fill your syringe 3 times

    asked by Jane
  21. English

    how can I rephrase this sentence to avoid plagarism. The hydroboration reaction has hecome an important tool in the repertoire of the synthetic organic chemi~

    asked by help
  22. Math 6th Grade

    If 5 out of 25 people don't like chocolate ice cream, what percent of the people do not like chocolate ice cream? A. 20% B. 5% C. 80% D. 30%

    asked by NapkinNate
  23. Math 6th Grade, Help me!

    If the original bill is $15.50, what will be the final bill after paying a 15% tip? Round to the nearest cent. A. $2.33 B. $17.83 C. $30.50 D. $232.50

    asked by NapkinNate
  24. Art

    4.the orientalizing period was characterized by? A. Greeks borrowing images from oriental cultures•• B.artwork with lots of shading and perspective c.oriental cultures borrowing images from Greek art D.artwork with many reds and golds

    asked by Ryleigh
  25. Programming Logic and Design (help?)

    Design a retirement planning calculator for Skulling Fincancial Services. Allo a user to enter a number of working years remaining in the user's career and the annual amount of money the user can save. Assume that the user earns three percent simple

    asked by Aubrey
  26. algebra 2

    rewrite 32^3/5 as a radical expression and then simplify.

    asked by lexi
  27. algebra 2

    find all the REAL square roots of a.)0.0064 b.)-0.0081 SHOW WORK PLEASE

    asked by lexi
  28. history

    does anyone have information on the declaration of independence plz I need to write a short letter about my experience there as I was there thank you.

    asked by carlee
  29. Math

    Find the function rule (-2,9) (-1,4) (0,-1) (1,-6) (2,-11) I think the function rule is you subtract 5 from the y as you go on.

    asked by math
  30. Chemistry

    In an IR spectrum at wavelength = 1454cm-1 its where a CH2

    asked by help
  31. Chemistry

    In an IR spectrum at wavelength = 1454cm-1 its where a CH2 group is present but then when it come to writing it down do I write v(CH) bend or v(CH2) bend please if your unsure dont answer me its urgent thankyou

    asked by help
  32. Composition II

    Hi, I have to write tesis statement for a reasearch paper we will later write. For my thesis statement, I have to ask a quesiton about an ethical problem in society(not a yes or no question, and something new, not a common issue) and come up with a NEW

    asked by Lora
  33. Physics

    Karen hang a spring vertically and attaches 30g Mass to the springs other end. If the spring stretches 5 cm. What is the spring constant?

    asked by Darylynn
  34. English

    Which sentence from Frankenstein most directly references the title character? A:Cerval spent the evening with us. B:This professor was very unlike his colleagues. C:His limbs were in proportion, and I had selected his features as beautiful.*** D:Before

    asked by anonymous
  35. MATH

    Draw the graph of the equation 4x²-6x+3 using the -2≤x≤3 use a scale of 2cm to 1unit on the x-axis, 1cm to 4units in the y-axis. Find the graphfind; (a) minimum value of y (b) The roots of the equation 4x²-6x-3=0 (c) The value of x when y=5 (d) The

    asked by AGBOR
  36. Science

    How is velocity different from speed?

    asked by D
  37. Social Studies

    Why was Henry Ford able to produce an affordable car? A. He only hired immigrants who would work for low pay. B. He used cheap parts made overseas. C. He developed a less expensive method of production. D. He allowed people to purchase new cars on credit.

    asked by Annonomus,
  38. Social Studies

    Why was Henry Ford able to produce an affordable car? A. He only hired immigrants who would work for low pay. B. He used cheap parts made overseas. C. He developed a less expensive method of production. D. He allowed people to purchase new cars on credit.

    asked by Me
  39. Math

    1. What are the mean, median, mode of the Data sets given the altitude of lakes in feet:- 12,-9,-14,-39,-49,-49,-18, and -43? A. Mean=-28.5,median=-29.1,Mode=-49,range= 40* B. Mean=-29.1, median=-49, Mode=-28.5,range= 41 C. Mean=-49,median=-29.1,

    asked by Bella
  40. Algebra 1

    Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 + 3x – 5 = 0 A.1.19, –4.19 B.–8.75, 5.75 C.1.66, 2.69 D.1.05, –4.05

    asked by Chief4Keef5Sosa6
  41. English

    You know about Gatsby and Daisy in the past in the present -- but what about their future? Thinking about all you have learned -- about their characters, about the social classes that divide the, and about their views of the past -- predict what you think

    asked by |-/
  42. Math Ms. Sue Help

    1. What are the mean, median, mode of the Data sets given the altitude of lakes in feet:- 12,-9,-14,-39,-49,-49,-18, and -43? A. Mean=-28.5,median=-29.1,Mode=-49,range= 40* B. Mean=-29.1, median=-49, Mode=-28.5,range= 41 C. Mean=-49,median=-29.1,

    asked by Bella
  43. Math

    A grandmother needs $50,000 for her here grandsons university in 10 years. She plans to make equal bi-weekly payments to a savings account for the first 6 years at an interest rate of 3.9% compounded bi-weekly. She will then leave that sum to accumulate

    asked by Carolyn
  44. English

    is it right to say through cooling and condensation process if not then how do I say that ?

    asked by help
  45. English

    We were brought up together; there was not quite a year difference in our ages. I need not say that we were strangers to any species of disunion or dispute. Harmony was the soul of our companionship, and the diversity and contrast that subsisted in our

    asked by anonymous
  46. English

    Choose the word that best defines the italicized word from the novel Frankenstein. Their feelings were serene and peaceful, while mine every day became more (tumultuous.) A:assured B:focused C:muted D:troubled*** Which except from Mary Shelley's

    asked by anonymous
  47. History

    In which of the following areas did reconstruction have the most positive effect A:education B:agriculture C:urbanization D:poverty reduction

    asked by Qwertyuiop
  48. Physics

    A disk of radius 0.4 cm and mass 0.7 kg is rotating at 5 rad/s. A second disk of radius 0.5 cm and mass 0.85 kg is rotating at 6 rad/s in the other direction. What is the combined angular velocity of the disks when the second disk is placed on top of the

    asked by Anonymous
  49. English

    I know I'm asking a lot of questions about plagiarism but I'm nervous lol. If I diagram two sentences and they don't look the same I might be free from plagiarism right? Like the two sentences I asked about earlier. From the source Parents often want to

    asked by wes
  50. Math

    How could you determine the length and height if you knew the width was 3 feet and the volume were 4,200 ft sq?

    asked by Cloe
  51. Chemistry

    What are the moles of substances present at equilibrium at 450C if 1 mol N2 and 4 mol H2 in a 10 L vessel react according to the following equation? N2 (g) + 3H_2(g) ⇌ 2NH_3 (g) The equilibrium constant Kc is 0.153 at 450C. Thanks a lot.

    asked by Paula
  52. math

    1. What is the correct classification for the triangle shown below? A triangle has two angles measuring 68 degrees and 22 degrees. (1 point) acute, scalene acute, isosceles --- right, scalene obtuse, scalene 2. What is the value of x in the triangle? A

    asked by Unknown
  53. Math

    How do you solve 8-3|p-4|=2? I got 6 and 2 as an answer

    asked by Oliver
  54. Science

    What would you do to measure the volume of a baseball? I've checked my notes and even opened my book! Please help! (I don't think I need a formula yet, I'm not being taught them in Science)

    asked by Anonymous
  55. physics

    The period of oscillation of a near-Earth satellite (neglecting atmospheric effects) is 84.3 min. What is the period of a near-Moon satellite? (R⊕= 6.37 × 10^6 m; RMoon= 1.74 × 10^6 m; m⊕ = 5.98 × 10^24 kg; mMoon = 7.36 × 10^22 kg.)

    asked by joy
  56. American Government Please Check

    1. Which of the following correctly describes how treaties are made? a. The president negotiates a treaty, and the House must approve funding for it. b. The Senate Foreign Relations Committee negotiates a treaty, and the House and the president must

    asked by girly girl
  57. Jiskha

    The other day I was on this site and my sister saw me. She told me to never go on this site, and she was accused of cheating off of it before. I told her that cheating is prohibited on Jiskha(and that Jiskha doesn't give answers, it just helps), but she

    asked by Anonymous
  58. Music

    Which of the following composers was most famous for writing operas? a. Beethoven b. Haydn c. Schubert d. Mozart

    asked by Anonymous
  59. Literature

    Since I am working on a project based on the poem "here" by Aracelis Girmay, how do people usually feel when reading this? What mood does it create for the readers?

    asked by Katherine
  60. math help please

    while on summer vacation with her family mary spends some time at a resort in the mountains there is a lake that rents paddleboats the paddleboat are rented by the hour.mary and her sister Mona decide to rent a paddleboat for 2 hours at the cost of $25.00

    asked by aye
  61. Mathematics

    the volumeof a right circular cone is 5 litres. calculate the volumes of the two parts into which the cone is divided by a plane parallel to the base one third of the way down from the vertex to the base to the nearest ml

    asked by Faith
  62. Physics

    A person spinning on a platform has a rotational inertia of 4 kg m^2 and an angular velocity of 15 rad/s. The person extends their arms out, and their rotational inertia becomes 7.5 kg m^2. What is their new angular velocity? I think the answer is 8 rad/s.

    asked by Anonymous
  63. PLEASE HELP SOON! (MS. SUE PLEASE)

    Which of the following correctly identifies the methods of heat transfer? A. Convection-Radiation-Conduction B. Conduction-Radiation-Convection C. Convection-Conduction-Radiation*** D. Radiation-Convection-Conduction

    asked by Olive Sue :D
  64. math

    Find the complement of an angle with measure 72 A:162 B:18 C:252 D: 108

    asked by finn wolfhard
  65. world history

    Morocco has coastlines on what two bodies of water? North Atlantic Ocean and Mediterranean sea?

    asked by nicole
  66. geography

    what countries on the arabian peninsula does the Tropic of Cancer pass through? Oman , Saudi Arabia, And United Arab Emirates Does it pass through Yemen too?

    asked by nicole
  67. math

    on a 10 question quiz you correctly answer four one point questions and five two point questions. you earn 87.5% of the possible points on the quiz. a. how many possible points is the quiz worth b. how many questions did you miss c. how many points was

    asked by robin
  68. science

    I need help with finding some sources of error! My experiment is that there is one candle lit and five different sizes of beakers being upside down onto the candle (one at a time) and seeing how long it takes for the candle to burn out for each beaker. I

    asked by Anonymous
  69. math

    Juan has 28 paperback books Each book is 1 1/4 inches wide. will all his books fit on the 2 and 1//2 feet shelf? if not how many will fit and how many will have to go on another shelf?

    asked by patsy
  70. alegbra

    The creator of a new game receives a royalty of 8% of the selling price of each game sold. The company that produces the game receives the remaining amount. If the company receives $10.10 per game sold, what is the selling price of the game?

    asked by Anonymous
  71. algebra

    Contributions to the annual Grayson School fund raising campaign were 10% greater in 2004 that they were in 2003. In 2003, contributions were 15% greater than they were in 2002. If contributions for 2004 total $8855, what was the total in 2002? (remember

    asked by Anonymous
  72. Science Help

    Place the following words into the illustration below gametes, sporophyte, gametophyte, and zygote. Explain how the terms are related. MY ANSWER 1. sporohyte 2. gametes 3. gametophyte 4. zygote I just need to explain my answer but I do not know how to.

    asked by Gurl nerd
  73. math

    1) A tank holds water with a base 2 ft by 6 ft. If a rectangular solid whose dimensions are 1 foot by 1 foot by 2 feet is totally immersed in water, how many inches with the water rise? A)1/6 B)1 C)2 D)3 E)12 ^I got B 2) AB+BA= CDC IF each of the four

    asked by Aline
  74. math

    This tree diagram shows the number of theatres and the numbers of different movies being shown at each theater.According to the diagram, how many possible movie choices are there

    asked by sparkelgurl
  75. educational technology

    which of the following is an acrostic? a. ram b. every good boy does fine c. association d. mnemonic device

    asked by Gigi
  76. BIO PLease help

    Which of the below are mechanisms cells can use to control activity of a gene? A) Regulating mRNA stability B)Regulating protein stability c)Positively regulate gene expression D)Regulating enzyme activity of a protein E)Regulating protein stability

    asked by Jeremiah
  77. algebra

    Margot and Francois were doing their algebra homework when Margot's dog, Pepe, bit off a piece of the paper they were working on. All they had left was a part of the sequence: 6, 12, ... and the fact that 1536 was another term of the sequence. Assuming the

    asked by Anonymous
  78. social studies

    Native Americans agreed to surrender most of the land in what is now Ohio, under the terms of Pinckney's Treaty. (1 point) True? False?

    asked by amandine fernandez
  79. Differential Equations

    We are learning how to solve systems of linear ODE's by elimination. I am not sure how to solve this: x'=-y+t y'=x-t I took the derivative of the second eqn to get y''-x'=-t' and added the two to get y''+y=-t'+t but I don't think thats the right way to

    asked by Jefferson
  80. Physics

    A 50-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 30 m/s. (a) If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately

    asked by jt
  81. chemistry

    C6H12 + 9O2 ---> 6 CO2 + 6H2O C6H12 + 12O2 ----> 6CO2 + 12H2O which is correct?

    asked by Anonymous