Most popular questions and responses by Savannah
  1. cheistry

    Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.

    asked on November 17, 2011
  2. Physics

    A boat moves through the water with two forces acting on it. One is a 1500 N forward push by the motor, and the other is an 1400 N resistive force due to the water. (a) What is the acceleration of the 1100 kg boat? m/s 2 (b) If it starts from rest, how far

    asked on October 7, 2011
  3. chemistry

    Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reaction:

    asked on December 19, 2012
  4. Chemistry

    The reaction has an equilibrium constant of Kp=2.26x10^4 at 298 K. CO(g) + 2H_2(g) CH_3OH(g) Calculate Kp for the reactions and predict whether reactants or products will be favored at equilibrium. A. CH_3OH(g) CO(g) + 2H_2(g) B. 1/2CO(g) + H_2(g)

    asked on April 16, 2014
  5. chemistry

    The air within a piston equipped with a cylinder absorbs 570J of heat and expands from an initial volume of 0.12L to a final volume of 0.88L against an external pressure of 1.0 atm. What is the change in internal energy of the air within the piston?

    asked on December 19, 2012
  6. Math

    Write a rule for the function represented by the table. x y 0 14 1 29 2 44 3 59

    asked on December 8, 2015
  7. chemistry

    The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to span a distance of 4.33 mm?

    asked on September 25, 2011
  8. Physical science

    A hot iron ball is dropped into 200g of cooler water. The water temperature increases by 2.0 degrees C and the temperature of the ball decreases by18.6 degrees C. What is the mass of the iron ball?

    asked on October 16, 2012
  9. Chemistry

    Which reaction below represents the second ionization of Lr?

    asked on November 15, 2016
  10. chemistry

    Identify the element that has a ground state electronic configuration of [Ar]4s23d104p 4

    asked on November 15, 2016
  11. English

    Which type of figurative language is used in the following line from John !@#$%^&ennedy's inaugural address to the nation? "The torch has been passed to a new generation of Americans." A. Allusion B. Simile C. Personification D. Metaphor

    asked on November 13, 2015
  12. geometry

    I would love for someone to check my work on the seven problems that I did. I would be eternally grateful. I am going to list my problems and answers. Even if you only want to check one of them, that would be great. 1. Write an equation of a line in point

    asked on August 2, 2015
  13. chemistry

    calculate the wavelength (in nm) of the red light emitted by a neon sign with a frequency of 4.74 x 10^14 Hz. i have no idea how to even set this up. please someone help.

    asked on January 21, 2013
  14. Physics

    A car with good tires on a dry road can decelerate at about 5.0m/s/s when braking. If the car is traveling at 55miles/hour, how much time does it take the car to stop? 55 mph = 80.7 ft/s = 24.6 m/s Divide the initial speed by the deceleration rate to get

    asked on September 18, 2006
  15. Science

    Why is the use of the inquiry process a practical way to approach science?

    asked on August 30, 2015
  16. chemistry

    How much heat is necessary to change a 52.0 g sample of water at 33 degrees celsius into steam at 110 degrees celsius?

    asked on December 17, 2012
  17. Chemistry

    The total mass that can be lifted by a balloon is given by the difference between the mass of air displaced by the balloon and the mass of the gas inside the balloon. Consider a hot air balloon that approximates a sphere 5.00 m in diameter and contains air

    asked on December 16, 2012
  18. Calculus AB

    A particle is moving along the x-axis so that at time t its acceleration is a(t)=ðcos(ðt) At time t=1/2, the velocity v of the particle is 1/2. Find the velocity of the particle at any time t. I think I got that right, as sinðt + C. Now it wants the

    asked on January 20, 2012
  19. Educational Tech

    Before Katie turns in the paper she typed she wants a peer to review it and give her feedback. Katie uses her all in one printer to scan her edit,prints, and send them to her friend. An all in one printer is Choose two. 1. Input device 2. Output device

    asked on August 23, 2016
  20. Chemistry

    What mass of Carbon dioxide is produced from the complete combustion of 4.60x10^-3g of methane?

    asked on October 24, 2013
  21. Chemistry

    A solution of NaOH with pH 13.68 requires 35.00 mL of 0.128 M HClO_4_ to reach the equivalence point. How do you calculate [Na^+^] and [ClO_4_^-^] at the aquicalence point? (volumes are additive)

    asked on March 8, 2012
  22. Art

    Which style of art is often described as a comic book style? A. Cubism B. Fauvism C. Op Art D. Pop Art ••• D is my answer.

    asked on January 17, 2017
  23. Math

    If a car travel 12 miles on 0.3 gallon of gas. How far can it travel on 1gallon?

    asked on August 30, 2016
  24. Algebra 2

    Hi I’m having trouble with a math question. If someone could help me out on how to do the whole problem it would be greatly appreciated. The math problem is below: One pump can drain a pool in 5 minutes. When a second pump is also used, the pool only

    asked on August 10, 2019
  25. Chem

    Explain why chemists might want to prepare substituted hydrocarbons. Give two examples of possible substitutions.

    asked on February 4, 2010
  26. Chem

    Does any solid PbCl2 form when 3.1 mg NaCl is dissolved in 0.228 L of 0.12 M Pb(NO3)2. Find the Qsp.

    asked on November 4, 2011
  27. social studies

    Which could be a reason for the Southern economic worth being so much higher than that of the New England and the Middle Colonies?

    asked on September 28, 2017
  28. chemistry

    Blue copper sulfate pentahydrate (CuSO4.5H2O) crystals were heated to give the white monohydrate. What percentage of water was lost? (molar mass of CuSO4.5H2O is 250.5 g/mol)

    asked on November 14, 2016
  29. math

    Lia has 5 basketball courts that she is dividing each into 's for a tournament. How many sections will she have?

    asked on January 11, 2016
  30. Math

    The surface area of the top surface of the water in a circular swimming pool is about 206 square feet. Estimate the radius of the pool, to the nearest foot.

    asked on July 22, 2019
  31. physics

    Two objects with masses of 3.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley (a) Determine the tension in the string. .N (b) Determine the magnitude of the acceleration of each mass. .m/s2 (c) Determine the distance

    asked on October 14, 2011
  32. Physics

    Please help me learn how to do this problem, step by step please. Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 4.1 km/s while moving

    asked on September 7, 2013
  33. chemistry

    Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and perchloric acid are combined.

    asked on November 17, 2011
  34. Physics

    A place kicker kicks a football at an angle of 42 degrees above the ground with a speed of 22 m/s. A) find time to max. height? B) find time to the ground? C) find max. height of the ball? D) find the horizontal displacement of the kickoff?

    asked on October 8, 2019
  35. Physics

    9)A car, moving along a straight stretch of highway, begins to accelerate at 0.0153 m/s 2 . It takes the car 29.2 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s

    asked on November 4, 2012
  36. math

    Which statement is true? A.The sum of two positive integers is sometimes positive, sometimes negative. B.The sum of two negative integers is always negative. C.The sum of a positive integer and a negative integer is always positive. D.The sum of a positive

    asked on September 24, 2013
  37. physical science

    What mass of NaCl do you need to make 71g of Cl2?

    asked on November 15, 2009
  38. Math Posttest Connexus 09:Posttest 9:Solving Two-

    Your school is planning a banquet. The cost of renting a function room is $240. The cost of food is $13 for each person attending. Write an expression for the total cost for p people. Then evaluate your expression for 58 people.

    asked on November 13, 2017
  39. math

    if albert baked 60 cookies and gave 7/12 away how many cookies does he have left

    asked on April 7, 2010
  40. 6th grade science

    How do the differences in the way land and water absorb and release energy cause local winds?

    asked on October 27, 2013
  41. Math

    Six people shared 3/5 pound of peanuts equally. What fraction of a pound of peanuts does each person receive

    asked on December 7, 2016
  42. chemistry

    The mass of a sample of boron atoms is 5.60 g. How many boron atoms are in this sample? Show your work here.

    asked on December 19, 2012
  43. math

    At a given time, the height of an object is directly proportional to the length of the shadow that is cast on the ground. A person 6 feet tall casts a shadow 1 foot long at noon. a) What is the length of the shadow cast by a flagpole known to be 20 feet

    asked on January 26, 2012
  44. Algebra 1

    How do I find the minimum and maximum possible measurements of an ostrich egg that is 1.6 kilograms to the nearest tenth of a kilogram

    asked on April 5, 2017
  45. chemistry

    When 0.558g of biphenyl (C_12H_10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.7^\circ C to 30.1^\circ C. Find DeltaE_rxn for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined

    asked on December 19, 2012
  46. physics

    A woman at an airport is towing her 21.0 kg suitcase at constant speed by pulling on the strap at an angle of è above the horizontal (Fig. P4.40). She pulls on the strap with a 34.0 N force, and the friction force on the suitcase is 11.0 N. (a) What angle

    asked on October 14, 2011
  47. Chemistry

    The total mass that can be lifted by a balloon is given by the difference between the mass of air displaced by the balloon and the mass of the gas inside the balloon. Consider a hot air balloon that approximates a sphere 5.00 m in diameter and contains air

    asked on December 14, 2012
  48. Algebra

    The area of a circle is given by the formula A+pier^2, where r is the radius. If increasing the radius of a circle by 1 inch gives the resulting circle an area of 100pie square inches, what is the radius of the original circle?

    asked on March 12, 2012
  49. Math

    I have a rectangle and i have to find the area using scientific notation and standard form. The length is 1.2 x 10^5 and the width is 2 x 10^2. Thanks!

    asked on April 29, 2019
  50. Physics

    You are in a boat that is traveling across a river from east to west at 4.0 m/s. the river runs north at 3.0 m/s. what is the resultant velocity of the boat?

    asked on December 11, 2012
  51. chemistry

    A patient is prescribed 0.210 mg of a drug that is available in 70 μg tablets. How many tablets are needed? (Remember that the number of significant figures does not matter because the number of tablets is being counted.)

    asked on February 1, 2017
  52. Statistics

    Suppose a bag contains 7 red chips, 8 black chips, and 3 green chips. You draw two chips (without replacement) from the bag. Find the probability that you drew a red chip first and then a black chip second.

    asked on April 30, 2010
  53. math

    what is 150 divided by 2

    asked on April 7, 2010
  54. Literature

    I need help writing 3 paragraphs for the epic beowulf

    asked on November 13, 2018
  55. chemistry

    Calculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.503 nm(wavelength of maximum solar radiation) i need help please!

    asked on January 25, 2013
  56. MATH

    Explain how x = 5 is different than x > 5.

    asked on February 10, 2019
  57. chemistry

    The air within a piston equipped with a cylinder absorbs 570J of heat and expands from an initial volume of 0.12L to a final volume of 0.88L against an external pressure of 1.0 atm. What is the change in internal energy of the air within the piston?

    asked on December 19, 2012
  58. Chemistry

    The entire volume of a balloon is filled with air. However, over time, the balloon becomes soft as the air pressure inside it decreases. According to the gas laws, which answer choice best describes the cause for the decrease in the balloon's air pressure?

    asked on September 20, 2018
  59. physics

    Two particles moving along parallel paths in the same direction pass the same point at the same time. Particle A has an initial velocity of 8.7 m/s and an acceleration of 1.2 m/s^2 Particle B has an initial velocity of 4.3 m/s and an acceleration of 7.7

    asked on November 4, 2012
  60. Calculus AB

    The rate of growth dP/dt of a population of bacteria is proportional to the square root of t, where p is the population size and t is the time in days (0

    asked on December 16, 2011
  61. Math

    There are 27 animals in a barn. There are a combination of cows and roosters. Altogether there are 78 legs. How many of each animal?

    asked on February 8, 2019
  62. math

    how many 4 1/2-feet pieces of rope can be cut from a 48-foot piece of rope?

    asked on November 3, 2014
  63. physics

    The figure below shows a general situation in which a stream of people attempt to escape through an exit door that turns out to be locked. The people move toward the door at speed v = 4.1 m/s, are each d = 0.30 m in depth, and are separated by L = 1.75 m.

    asked on September 3, 2011
  64. contemporary Math

    If there are 2 red disks numbered 1 through 2, and 6 yellow disks numbered 3 through 8, find the probability of selecting a red disk, givent that an odd-numbered disk is selected?

    asked on November 17, 2010
  65. Social Studies

    Question 1 (1 point) How have residents of Canada's eastern coast dealt with changes in the fishing industry? a They have banned aquaculture. b They concentrated on other economic activities. c They have completely given up fishing. d They only fish for

    asked on March 17, 2017
  66. Biology ASAP

    1.)Neurons are classified bye the... (Answer) Direction they carry impulses. I think its because the impulses go to different places, to its different neurons. 2.) Your alarm wakes you up in the morning and reminds you to get ready to go to school. Which

    asked on May 28, 2015
  67. chemistry

    How many orbitals are contained in the n=2 level? Give the l and ml values of each of them.

    asked on January 28, 2013
  68. chemistry

    A solution of NaOH with pH 13.68 requires 35.00 mL of 0.128 M HClO_4_ to reach the equivalence point. What is the volume of the NaOH solution?

    asked on March 8, 2012
  69. chemistry

    are this 2 equations the same NIE? and if not how come? Write a net ionic equation for the reaction that occurs when aqueous solutions of ammonia and acetic acid are combined. Write a net ionic equation for the reaction that occurs when aqueous solutions

    asked on November 17, 2011
  70. anthropology

    I am so confused!! Can anyone help me by explaining what it means by international development? Provide 2 reasons in support and 2 against the position that anthropologists should be involved in applying their knowledge and skills to the goals of

    asked on September 26, 2017
  71. Physics

    A train is moving parallel and adjacent to a highway with a constant speed of 27 m/s. Initially a car is 41 m behind the train, traveling in the same direction as the train at 39 m/s and accelerating at 4 m/s 2 . What is the speed of the car just as it

    asked on November 4, 2012
  72. Trigonometry

    2cos^2(x) = 13sinx - 5 How do i solve for x? I think i have to use the sin^2x + cos^2x = 1, but I'm not sure how to use that. I thought about maybe doing 2(1-sin^2x) = 13sinx - 5 but then i get stuck. Any suggestions?

    asked on January 16, 2012
  73. physics

    A hockey puck is hit on a frozen lake and starts moving with a speed of 10.6 m/s. Five seconds later, its speed is 6.10 m/s. (a) What is its average acceleration? m/s2 (b) What is the average value of the coefficient of kinetic friction between puck and

    asked on October 14, 2011
  74. Accounting

    What is the maturity value of a 120-day, 4 % note for $ 18,000

    asked on June 12, 2011
  75. algebra

    if a function consists of the set of ordered pairs {(0,1),(1,2),(2,5),(3,10)}, what is the range of the function? -{0,1,2,3} -{0,2,5,10} -{1,2,5,10} -{1,1,3,7}

    asked on February 16, 2018
  76. Algebra 1

    how do i work out the equation S= B + 1/2Pl solving for l

    asked on November 3, 2010
  77. Math

    Whole Number Math Riddle Clue 1: Double my tens digit and get my ones digit. Clue 2: Double me and I am less than 50

    asked on April 4, 2011
  78. Math

    What kind of graph is two circles put together called?

    asked on November 30, 2010
  79. spanish

    ¿Cómo se llama tu maestra favorita y Qué clase enseña?

    asked on January 22, 2013
  80. Math Posttest Connexus 09:Posttest 9:Solving Two-

    During a three-day premiere, a theater must sell an average of 200 tickets per night to make a profit. For the first two nights, 206 and 185 tickets were sold. How many tickets must be sold for the third night for the theater to make a profit? A) 197 B) 5

    asked on November 13, 2017
  81. POL201 American National Government

    Question 1.1. Despite the greater federal authority in the federal relationship, federalism is still important for all the following reasons except that (Points : 1) it provides the best means of developing a vast country because it allows for

    asked on April 15, 2015
  82. Physics

    The acceleration of gravity at the surface of a newly discovered planet is 5.2 m/s^2. An astronaut throws a rock straight up at 10.5 m/s on this planet. How high will it go? Please help!!!

    asked on September 25, 2012
  83. Physics

    If a ball has an initial downward speed of 24 m/s, how far does the ball drop during the 4 s to 5 s interval

    asked on September 23, 2012
  84. Physics

    Lai threw a ball downwards with an initial velocity of 11.0 m/s. What is in meters the displacement of the ball during the 2.9 seconds after she threw it? (don't include units in the answer, use 10.0 m/s2 for g and use the upward direction as positive)

    asked on January 13, 2012
  85. chemistry

    The mass of a single silver atom is 1.79E-22 grams. How many silver atoms would there be in 112 milligrams of silver?

    asked on September 25, 2011
  86. algebra

    i have got a lot of math problems to do...if you can just help me with 3 of these problems...i could do the rest...thank you so much!! factor each expression::: 1. 20xy 2. 36g^2h^2 3. 44m^2n

    asked on August 18, 2010
  87. Chemistry

    What are some examples of homogeneous and heterogeneous substances?

    asked on August 19, 2008
  88. chemistry

    You have 14.0mL of a 0.12M NaOH solution. How many moles of HCl will it take to neutralize this solution?

    asked on March 1, 2015
  89. Chemistry

    Calculate Kc. CH_4(g) + H_2O(g) CO(g) + 3H_2(g) Kp= 7.7 x 10^24 at 298K. Should I use the formula Kp= Kc(RT)^Deltang If so I have no idea where to start.

    asked on April 16, 2014
  90. Math

    Find the difference: 3-(-9) A. -12 B. -6 C. 6 D. 12 I got the answer on (D)12 but I am not 100% sure becuase they ask the difference, not the sum.

    asked on September 24, 2013
  91. algebra

    the houston texans sell styrofoam fingers to make a profit. Profit made from styrofoam fingers sales is function of numbers sold. Which of the following is the independent quantity in this function?

    asked on October 3, 2012
  92. Marketing

    Can you give me an example of a product and its marketing mix? By marketing mix, I am referring to the 4 P’s of Marketing- Price, Product, Place and Promotion For example like Yoplait, but I am not sure how the company uses the 4 P’s

    asked on January 29, 2012
  93. Business Communications

    Which of the following would be the MOST useful strategy for learning to communicate effectively with international employees working in your overseas divisions? a) Devote time to learning the rules for communicating with people from each of the countries

    asked on February 24, 2011
  94. 6th grade

    what did egyptian pharoahs of old kingdoms build for their tombs?

    asked on December 17, 2009
  95. Pre-Algebra - 7th Grade

    How do you add a negative number and a positive number. For example: -9 + 7 = ?

    asked on September 4, 2008
  96. scince

    what is 8 cm in inches?

    asked on December 5, 2007
  97. romeo and juliet

    Hi. I have a question. Wasn't the play Romeo and Juliet by William Shakespeare based off of a poem by Arthur Brooke? This is what I was taught in school and have read on several websites, but someone else told me that what I know is completely wrong, but

    asked on April 4, 2007


    asked on July 31, 2017
  99. Entrepreneurship

    What are the main components of Operations Plan in a business plan? Please state the content of the following A. A description of the company's operation B. Flow of Orders for Goods and Services

    asked on July 27, 2017
  100. Basic Physics

    What is the force of gravity between two spheres that have a mass of 8 kg and are separated by 27 m?

    asked on January 9, 2013


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