Most popular questions and responses by kat
  1. Social studies

    1. which is the most important effect of the Bessmer Process?

    asked on February 16, 2017
  2. Science - Please Look!

    The senses are used to make which of the following? inferences predictions evaluations ((**observations**)) You walk into the kitchen and see a broken egg on the floor. Which of the following is an inference you can make based on this observation? ((**The

    asked on August 22, 2016
  3. Math

    The coordinates A(0, 0), B(0, 3), C(4, 3) and D(4, 0) are graphed and connected together. What 3-dimensional shape will be created when this shape is rotated about the y-axis? Provide an explanation and proof for your answer to receive full credit. My

    asked on June 9, 2017
  4. Chemistry

    Which of the following reactions are spontaneous (favorable)? A] 2Mg(s) + O2(g) -> 2MgO(s) Delta G = -1137 kJ/mol .. B] NH3(g) + HCl(g) -> NH4Cl(s) Delta G = -91.1 kJ/mol ... C] AgCl(s) -> Ag+(aq) + Cl-(aq) Delta G = 55.6 kJ/mol .. D] 2H2(g) + O2(g) ->

    asked on March 8, 2012
  5. S.S

    What was a common theme shared by the maya and the aztec civilizations?

    asked on September 10, 2018
  6. Heath and PE

    According to the dietary guidelines for Americans, which of the following is important in order to maintain a healthy weight? Get all the nutrients your body needs Balance calories eaten with activity level Wash hands when preparing food Eat nutrient-dense

    asked on February 16, 2018
  7. Spanish

    Suppose you are babysitting your little brother. In Spanish, tell him to do three things using the verbs hacer, ir, and ser. Example: Ver a tu cuarto. I need help! Someone please help me!

    asked on October 3, 2018
  8. Business/Finance

    A $120,000, 5% 200-day note dated June 6 is discounted on October 8. The discount period is _______ days. a. 142 b. 67 c. 124 d. 76 C is wrong

    asked on August 31, 2014
  9. college physics

    a 7500 kilogram rocket blasts off vertically upward from the launch pad with a constant acceleration of 2.25 m/s squared and feels no appreciable air resistance, when it reaches the height of 525 meter its engine suddenly fail so that the only force acting

    asked on July 19, 2010
  10. please check my english

    1. Which phrase, in "The Prisoner Who Wore Glasses," best describes Brille? (1 point) easygoing and generous with his friends intelligent, yet shortsighted in his political views intuitive and calculating in his appraisal of others quick­thinking and

    asked on December 4, 2014
  11. 8th Social studies

    Explain why Lincolns assassination put the future of the nation in question?

    asked on February 24, 2017
  12. physics

    an object weighs 10N on earth .what is the objects weight on a planet one tenth the earths mass and one half its radius?

    asked on July 12, 2013
  13. Chemistry

    a change in pressure would have the greatest effect on the solubility of a A. solid in a liquid B. gas in a liquid C.liquid in a liquid D.liquid in a solid in an aqueous solution of potassium chloride, the solute is A. Cl B. KCl C. H20 D. K B for the

    asked on March 26, 2007
  14. science, biology

    1. What is/are the main factor(s) that determine(s) that your plants will grow into bean plants (or other fast-growing plants that you used for your experiment) and not some other type of plant (genetics, environment, or both)? Explain your answer.

    asked on October 22, 2015
  15. Chemistry

    You wish to know the enthalpy change for the formation of liquid PCl3 from the elements shown below. P4(s) + 6 Cl2(g)--> 4 PCl3(l) ΔH°f = ? The enthalpy change for the formation of PCl5 from the elements can be determined experimentally, as can the

    asked on May 1, 2011
  16. intro to computers

    You create a formula in A8 that adds up the numbers listed in A1 through A7. You copy the formula and paste it into C8. What happens in C8? A. The sum of cells A1 through A8 appears. B. The sum of cells C1 through C8 appears. C. The sum of cells A1 through

    asked on February 20, 2016
  17. social studies

    Questions about Henry Ford the inventor: 1. Why was Ford not satisfied with the Model T at first? 2. How would working in a factory like the Highland Park Plant be dangerous? 3. What plan did Henry come up with to make the workers happier and to reduce

    asked on February 10, 2011
  18. Math

    Sam is 2 years and his mother is 28 years old. In how many years will Sam's mother be 3 times as old as he will be?

    asked on December 6, 2015
  19. Chemistry

    Zinc carbonate, ZnCO3(s), dissolves in water to give a solution that is 1.7 multiplied by 10-5 M at 22°C. Calculate Ksp for ZnCO3(s) at this temperature.

    asked on May 24, 2011
  20. chemistry

    Write and balance the equation for the reaction between nitric acid and potassium iodide. The products are potassium nitrate, iodine, nitrogen monoxide, and water. 2HNO3 + KI = KNO3 + I + 2NO + H2O (Did I write the equation correctly?)

    asked on April 14, 2016
  21. chemistry

    Arrange the following 0.1 M solutions in order of increasing pH and state why you placed each solution in that position: NaCH3COO HCl HCN NaOH NH3 NaCN KNO3 H2SO4 NH4CL H2SO3 NaHCO3 Na3PO4 CH3COOH

    asked on March 27, 2011
  22. Chemistry

    Write a balanced net ionic equation to show why the solubility of Ca(OH)2(s) increases in the presence of a strong acid and calculate the equilibrium constant for the reaction of this sparingly soluble salt with acid.

    asked on May 27, 2016
  23. English12

    In Pope's essay on Man, how does the speaker cast humankind's relationship to both God and His creation?

    asked on December 9, 2015
  24. algebra

    Samir begins riding his bike at a rate of 6 mph. Twelve minutes later, Chris leaves from the same point and bikes along the same route at 9 mph. At any given time, t, the distance traveled can be calculated using the formula d = rt, where d represents

    asked on October 17, 2014
  25. Ed Tech

    The famous social reformer Fredrick Douglas was born in 1818 in Tuckahoe, Maryland. He was raised mostly by his grandmother. Douglas was born a slave and remained to be so until 1838, when he escaped slavery by using borrowed papers of a freed slave and

    asked on October 17, 2017
  26. Chemistry

    OF2(g) + H2O(g) -> O2(g) +2HF(g) ΔH°rxn = -318 kJ Using bond energies, calculate the bond dissociation energy of the O-F bond, in OF2. This is the question and I got 438 as the answer, which is wrong. I don't know what I did wrong??

    asked on May 1, 2011
  27. Math. Plz walk me though

    A picture of the Sun has 12 identically matched points. Suppose you line up two suns directly on top of each other. What is the least number of degrees that you can rotate the top sun so that so the two Suns are perfectly aligned again. Can someone please

    asked on April 3, 2017
  28. physics

    A car (m = 1870 kg) is parked on a road that rises 12.1 ° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires?

    asked on August 12, 2015
  29. Chemistry

    which solution has the highest boiling point? a. 1 mole of NaNO3 in 500 g of water b. 1mole of NaNO3 in 1000g of water c. 1mole of NaNo3 in 750g of water d. 1mole of NaNo3 in 250 g of water The boiling point of water is elevated by about 0.5 degree for a 1

    asked on March 26, 2007
  30. Chemistry

    Cyclohexane, C6H12, a hydrocarbon, can isomerize or change into methylcyclopentane, a compound of the same formula (C5H9CH3) but with a different molecular structure. The equilibrium constant is 0.12 at 25°C. If you had originally placed 0.036 mol of

    asked on May 24, 2011
  31. Biology check please

    1. Who most influenced Darwin's idea that life could change slowly over a long period of time? (1 point) Malthus Hutton and Lyell Lamarck livestock breeders and farmers 2. Who most influenced Darwin's idea that some offspring are better suited to survival

    asked on January 9, 2015
  32. Business Math

    Lee and Fred are elementary school teachers. Fred works for a charter school in Pacific Palisades, California, where class size reduction is a goal for 2013. Lee works for a noncharter school where funds do not allow for class size reduction policies.

    asked on December 13, 2018
  33. English12

    What do the speakers of Sir Thomas Wyatt's "Whoso List to Hunt" and Edmund Spenser's "Sonnet 30" have in common? How are they different?

    asked on December 8, 2015
  34. Science- Earth

    Under which circumstances do neap tides occur? HELP NEED ASAP!!

    asked on February 22, 2017
  35. PE

    Kobe Bryant is a very famous basketball player who helped his team win many national champion ships. When people use him to advertise their line of athletic wear, what type of advertising are they using? Band wagon emotional appeal price appeal testimonial

    asked on February 24, 2017
  36. science

    Specific heat capacity of solid ethanol is 2.419 J/g C. Melting point temperature of ethanol is -114.4 C/ 158.8 K. Enthalpy of fusion of ethanol is 106.4 J/g. Specific heat capacity of liquid ethanol is 2.440 J/g C. 44.0 g of solid ethanol at -134.4 C is

    asked on November 23, 2015
  37. geometry

    Points D, E, and F are the midpoints of sides \overline{BC}, \overline{CA}, and \overline{AB} of \triangle ABC, respectively, and \overline{CZ} is an altitude of the triangle. If \angle BAC = 71^\circ, \angle ABC = 39^\circ, and \angle BCA = 70^\circ, then

    asked on July 23, 2014
  38. alebra

    Let f(x)=2x^2+x-3 and g(x)=x-1. Perform the indicated operation then find the domain. (f*g)(x) a.2x^3-x^2-4x+3; domain:all real numbers b.2x^3+x^2-3x; domain: all real numbers c.2x^3+x^2+4x-3; domain: negative real numbers d.2x^3+x-3x+3; domain: positive

    asked on February 18, 2018
  39. math

    At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 80 meters and a diameter of 40 meters. It takes the wheel seven minutes to make one revolution. Write the sinusoidal function, f(t), that models the height of your

    asked on November 21, 2014
  40. Chemistry

    OF2(g) + H2O(g) -> O2(g) +2HF(g) ΔH°rxn = -318 kJ Using bond energies, calculate the bond dissociation energy of the O-F bond, in OF2. This is the question and I got 438 as the answer, which is wrong. I don't know what I did wrong??

    asked on May 1, 2011
  41. Algebra

    Ribbon is sold at 3 yards for $6.33. Jackie bought 24 yards of ribbon for a project. How much did she pay? I am pretty sure it is $50.64 PLEASE CHECK MY ANSWER

    asked on October 23, 2017
  42. English

    Which detail belongs in paragraph five to help support the main idea of the paragraph? A) places to receive acupuncture are increasingly easy to find all across the United States ***B) not everyone is necessarily fond of acupuncture some patients for for

    asked on May 13, 2019
  43. Math

    The diameter of a car's tire is 60cm. While the car is being driven, the tire picks up a nail. At what times in two complete cycles is the nail at a height of 1cm above the ground. So far, I have calculated the circumference of the wheel (188.5) and I do

    asked on January 24, 2016
  44. Chemistry

    How many moles of oxygen are required for the combustion of 25.5 g of magnesium?

    asked on November 26, 2012
  45. General Chemistry

    The photogenic work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function equals 4.34 x 10^-19 J. What is the minimum frequency of light for the photoelectric effect in

    asked on January 13, 2008
  46. Chemistry

    In the Laboratory, a student mixes aqueous solutions of NiSO4 and NaOH. whatwill be the result of this experiment? Ni(oh)2 precipitates out of solution ..IS that right? yes. But I would right is as Ni(OH)2

    asked on March 26, 2007
  47. Social Studies

    What do the 15th, 19th, and 26th amendments have in common? A. Voting Rights B. Religious Rights C. African American Rights D. Women's Rights

    asked on October 17, 2017
  48. AP Physics

    A 25 degree incline sits on a 1.2 meter high table. a ball rolls off the incline with a velocity of 4 m/s. how far does the ball travel across the room before reaching the floor?

    asked on January 18, 2016
  49. 12th grade

    Which acid is stronger: HClO2 or HClO3? Can you also explain why?

    asked on July 27, 2010
  50. History

    During the Protestant Reformation, which church used new genres such as the Anglican chant, the anthem, and the long and short services? a) Calvinist Movement b) Lutheran Church c) Catholic Church d) Church of England I think it might be A but I'm not

    asked on October 19, 2017
  51. help asap

    7. Verify that parallelogram ABCD with vertices A(–5, –1), B(–9, 6), C(–1, 5), and D(3, –2) is a rhombus by showing that it is a parallelogram with perpendicular diagonals. (3 points)

    asked on December 9, 2014
  52. math

    e. Felix Baumgartner is a daredevil famous for breaking the sound barrier during a freefall on October 14, 2012. Aided by a weather balloon, he climbed to a height of 128,100 feet. More than 24 miles in the air, he was so high up that he could see

    asked on June 17, 2014
  53. chemistry

    what is the molarity of a solution of KNO3(molecular mass=101) that contains 404 grams of KNO3 in 2.00 liters of solution? A. 1.00M b. 2.00M c. 0.500M d. 4.00M The definition of molarity is #mols/Liter of solution. Convert 404 g KNO3 to mols (mols =

    asked on March 26, 2007
  54. Chemistry

    How many moles of H2SO4 are needed to prepare 5.0 liters of 2.0M solution of H2SO4? a. 5.0 b. 10 c. 2.5 d. 20 Go back to the definition of molarity. M = #mols/L is the answer d If M = # mols/L, then L x M = #mols. 5.0L x 2.0M = 10 mols.

    asked on March 26, 2007
  55. Math

    How long will 875 double itself at the rate of 8% simple interest?

    asked on October 16, 2018
  56. geometry

    How do I describe a transformation of a triangle that maps ABC onto A'B'C'. So if you can just explain the steps to me that would be great. Thanks

    asked on August 26, 2016
  57. Algebra

    Does the data in the table represent a direct variation or an inverse variation? x 1 3 4 7 y 5 15 20 35 Write an equation to model the data in the table

    asked on May 2, 2016
  58. chemistry

    A solution is made by dissolving 10.20 grams of glucose (C6H12O6) in 355 grams of water. What is the freezing-point depression of the solvent if the freezing point constant is -1.86 °C/m? Show all of the work needed to solve this problem.

    asked on March 29, 2013
  59. Chemistry

    3. The diagram shows an electrochemical cell with a gold strip (left) and aluminum glasses (right). In your response, do the following: • Label the cathode and the anode, including the charge on each. • Show the flow of electrons. • Describe what

    asked on May 13, 2016
  60. Legal

    Ideas on how to start this essay question? Discuss whether current Australian law is effective in protecting people by i) criminalising certain kinds of behaviour and communication on social media and ii) providing “stronger” criminal punishment and

    asked on May 16, 2019
  61. Algebra

    Suppose that you work part time as a sales representative at a car dealership. You earn a base salary of $125 per week plus a 18% commission on all sales that you make. Your best friend has exactly the same job at another car dealership but earning a base

    asked on November 15, 2016
  62. Chemistry

    The diagram shows an electrochemical cell with a gold strip (left) and aluminum glasses (right). In your response, do the following: • Label the cathode and the anode, including the charge on each. • Show the flow of electrons. • Describe what type

    asked on May 13, 2016
  63. Chemistry

    The electron in a hydrogen atom, originally in level n = 8, undergoes a transition to a lower level by emitting a photon of wavelength 3745 nm. What is the final level of the electron? a) 5, b)8, c)9, d)6

    asked on April 23, 2019
  64. Math

    about 24.8 million people live in texas. about 0.6 million live in vermont. how many times as many people live in texas than in vermont. round to the nearest tenth if necessary. i got 41.333 (41) as my answer.am i correct

    asked on January 14, 2015
  65. Calculus

    Haha you got me oobleck, it was technically just for studying tho v.v Well, I was hoping you could check the answers and explain to me which ones are wrong (I got a c on it and want to be ready for the next one TT) (I know it looks like a lot but there is

    asked on February 24, 2019
  66. physics

    A girl delivering newspapers travels 3 blocks west, 4 blocks north, then 6 blocks east. What is her resultant displacement? what is the total distance that she travelled? and how do I graph this??

    asked on January 9, 2013
  67. Social Studies

    how are religion and culture connected?

    asked on January 22, 2015
  68. physics

    A 85 kg pole-vaulter falls from rest from a height of 6.4 m onto a foam-rubber pad. The pole-vaulter comes to rest 0.48 s after landing on the pad. (a) Calculate the athlete's velocity just before reaching the pad. m/s downward (b) Calculate the constant

    asked on April 21, 2013
  69. math

    whts d answer 4 d pizzazz workseet that says "did u hear about...."

    asked on September 30, 2010
  70. algebra

    what are the classification of polynomials according to the number of terms they have.

    asked on October 17, 2012
  71. accounting

    Doug Maltbee formed a lawn service business as a summer job. To start the business on May 1, he deposited $1,000 in a new bank account in the name of the proprietorship. The $1,000 consisted of a $600 loan from his father and $400 of his own money. Doug

    asked on March 2, 2007
  72. Pre algebra

    A fair charge an admission fee of $6 for each person. Let C be the cost of admission (in dollars) for P people. Write an equation relating C to P. Then graph your equation using axes

    asked on May 6, 2017
  73. Physics

    At an amusement park, a swimmer uses a water slide to enter the main pool. If the swimmer starts at rest, slides without friction, and descends through a vertical height of 2.28 m, what is her speed at the bottom of the slide?

    asked on October 4, 2010
  74. Math

    Ms. Jones borrows 3.120M for 5.5% interest compounded monthly. What is the periodic payment needed after 15yrs?

    asked on November 3, 2018
  75. chemistry

    When surface water dissolves carbon dioxide, carbonic acid (H2CO3) is formed. When the water moves underground through limestone formations, the limestone dissolves and caves are sometimes produced. CaCO3(s) + H2CO3(aq) Ca(HCO3)2(aq) What mass of limestone

    asked on February 9, 2010
  76. Math

    Joe borrowed $2000 from the bank at a rate of 7% simple interest per year. How much interest did he pay in five years?

    asked on November 17, 2015
  77. math

    You have a bag of lots of red and white marbles. In the worst case, how many would you have to pull out to get two marbles of the same color? Four? Generalize by finding a formula for predicting the maximum number of marbles that you would have to pull out

    asked on February 14, 2011
  78. College algebra

    Things did not go quite as planned. you invested $8,000, part of it in a stock that payed 12% annual interest. However the rest of the money suffered a 5% loss. If the total annual income for both investments was $620.

    asked on January 29, 2014
  79. physics

    Assume that if the shear stress in steel exceeds about 4.00 108 N/m2, the steel ruptures. (a) Determine the shearing force necessary to shear a steel bolt 1.40 cm in diameter. (b) Determine the shearing force necessary to punch a 1.75-cm-diameter hole in a

    asked on November 10, 2012
  80. math

    how do you plan to use the points you have earned in imagine math? A.customize my avatar B.donate them to charity C.save them I need help fast and quick

    asked on May 22, 2019
  81. Gen Science 2

    lightning is actually an enormous display of the concept of? A) chemical heating B) solar energy C) magnetism D) groundind

    asked on January 19, 2015
  82. geometry

    Points D, E, and F are the midpoints of sides \overline{BC}, \overline{CA}, and \overline{AB} of \triangle ABC, respectively, and \overline{CZ} is an altitude of the triangle. If \angle BAC = 71^\circ, \angle ABC = 39^\circ, and \angle BCA = 70^\circ, then

    asked on July 23, 2014
  83. chemistry

    A 265- mL flask contains pure helium at a pressure of 747 torr. A second flask with a volume of 485 mL contains pure argon at a pressure of 721 torr .If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial

    asked on September 30, 2010
  84. Physics

    A 200 gram sample of hot water at 89°C is mixed with 200 grams of cool water at 16°C. Assume there is no loss of heat energy to the surroundings, what is the final temperature of the mixture when they reach thermal equilibrium?

    asked on February 24, 2017
  85. trig

    an airplane leaves the airport and flies due west 150 miles and then 240 miles in the direction 200°40'. Assuming the earth is flat, how far is the plane from the airport at this time( to the nearest mile)?

    asked on March 26, 2010
  86. Geometry-properties of tangents of a circle

    Circle L has segment LJ and segment LK as radii. Those 2 segments are perpendicular. Segment KM and segment JM are tangent to circle L. Is triangle JLM congruent to triangle KLM? Please explain.

    asked on March 25, 2010
  87. social studies

    How did textile factories improve the economy of South Carolina?

    asked on February 8, 2018
  88. Driver's Ed

    Driver's licenses can not be suspended for more than 365 days. A) True. B) False. In 2002, two out of every three drivers under the age of 21, involved in a single vehicle crash, were killed at night. A) True. B) False.

    asked on July 22, 2013
  89. Astro

    A newly discovered planet orbits a distant star with the same mass as the Sun at an average distance of 118 million kilometers. Its orbital eccentricity is 0.5. A.Find the planet's orbital period. B.Find the planet's nearest orbital distance from its star.

    asked on March 4, 2015
  90. Social Studies

    Which Korean War outcomes are still in place today? A) The U.N gave Russia power over North Korea, and US troops left South Korea. B) North and south Korean leaders signed a treaty, and North Korea became a democracy. C) North and South Korea became one

    asked on May 13, 2019
  91. Geometry

    I need help with this paragraph proof I have no clue what I am doing. Given: QS bisects angle PQR. Angle PQS equals 45 degrees. Prove: PQR is a right triangle. I really need help, I don't want to fail.

    asked on September 13, 2016
  92. Finance

    If a father wants to have $100,000 to send a newborn child to college, how much must he invest annually for 18 years if he earns 9 percent on his funds?

    asked on January 27, 2010
  93. Chemistry

    What Occurs as a salt dissolves in water? the number of ions in the solution increases and the freezing point decrease the number of the ions in the solution increase and the freezing point increase the # of ions in the solution decrease and the freezing

    asked on March 26, 2007
  94. Calculus

    Hello!! I'm trying to create a study sheet to help myself! If someone could give and explain the correct answers, It would be very helpful for me and appreciated! gyazo.com/0dccabaac7b9ed649b06d394ce306ff5 gyazo.com/471e9983d44105f9673e437c6ab56609 (sorry

    asked on February 24, 2019
  95. Math. plz help or try.

    I would love it if you helped me. 1. Determine the median of this data set. 5,6,3,2,2,4,8,9 A. 2 B. 4.5 C. 5.5 D. 5 2. What is the mode of the data set? 27,35,57,36,44,57,33,34,66,30,33,42,57,23,35 A. 35 B. 33 C. 42 D. 57 3. Sam conducted a survey in which

    asked on February 25, 2017
  96. 8th grade algebra

    A gardner at a nursery is filling pots with soil to prepare to transplant seedlings into these larger pots. Each new pot needs about 27 cubic inches of soil. The amount of soil s (in cubic inches) it takes to fill p pots is given by the function s=27p. a.

    asked on December 7, 2018
  97. Math

    A squirrel jumps into the air with a velocity of 7 m/s at an angle of 20°. What is the maximum height reached by the squirrel? I have my answer as 29.2 Am I right?

    asked on October 17, 2018
  98. Chemistry

    An equilibrium mixture of PCl5(g), PCl3(g), and Cl2(g) has a partial pressure of 217.0 torr, 13.2 torr, and 13.2 torr, respectively. A quantity of Cl2(g) is injected into the mixture, and the total pressure jumps to 263.0 torr. The appropriate chemical

    asked on March 6, 2012
  99. Chemistry

    The molar solubility of silver iodide in a 0.186 M potassium iodide solution is __________ M.

    asked on May 27, 2016
  100. algebra

    I don't quiet know where to start can anyone help guide me? Bonnie has a container in the shape of rectangular pyramid. The formula for the surface area of the enclosed space is S=lw+0.5Ph. Solve for P? P= S - lw- 0.5h P= S + lw + 0.5h P= S-lw/ 0.5h P=

    asked on October 5, 2015


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