1. Gen Chem

    Which provides the greatest increase in entropy for a mole of substance? a)Water melts at 0°C. b)Liquid water is heated from 0°C to 25°C. c)Gaseous water is converted to solid ice at 0.1°C. d)Water is converted from liquid to vapor at 100°C. e)Cannot
  2. Science

    How sediments,fossil, and ice core record Earth's geologic history? It record Earth's geologic history by giving scientist an idea of when certain climates or events happen.(Is this a good answer?) Thanks
  3. chem

    The reaction is Br2 (g) 2Br (g). It occurs at T = 1600 C. When 1.05 mol Br2 are placed in a 2 Liter flask, 2.50% of Br2 undergoes dissociation. Calculate the Kp for the reaction. Okay so i did the ICE table for this, Br2 (g) 2Br (g) I : 1.05/2 ..... 0 C :
  4. science

    350g ofwater at 30 degree celcius is contained in a copper vessel of mass 50g. Calculate the mass of ice required to bring down the temperature of the vessel and its content at 5 degree celcius.
  5. Chemistry

    How do I start an ICE table from the following information: BrCl3(g)+ Cl2(l) -> BrCl5(g) where Kp=7.8*10^-6 and there is originally 0.215 atm BrCl3, 725g Cl2, 0.115 atm BrCl5 - Can pressures be used as initial concentrations?
  6. Spanish

    How exactly will I do this? I seriously need help yet,I can't even attempt this. My teacher hasn't taught me this stuff as yet. So help would be appreciated. This is what I'm working on: Command form(imperative mood)negative familiar/polite. I have to
  7. employment law

    The supervisor comes to your office and wants to see the employee’s file. You provide the supervisor the file. The supervisor asks for the results from the drug test, the medical follow-up for the work-related injury a year ago, and the employee’s
  8. Please review

    Question is what do the terms race and ethnicity man to you? Question is Why are these concepts important to United States Society? Answer: The term race to be means the way a person distinguishes how one looks at ones skin color, facial features, ancestry
  9. computer science

    Use the Library and other resources to write a "work-from-home" policy manual for an insurance company, educational institution, or another organization concerned about protecting an individual's privacy. Your manual should include policies to cover remote
  10. Physics 2414

    An airplane pilot falls 355 m after jumping from an aircraft without his parachute opening. Fortunately, he lands in a snowbank, creating a crater 1.5 m deep, and survives with only minor injuries. Assuming the pilot's mass is 77 kg and his terminal
  11. english

    In the story Animal Farm how is the use of allegory as a rhetorical device different from simply laying out a non-fictional account, or an historical or statistical analysis of the period and the rise of the Communist Party? Answer: Within an allegory
  12. English

    I left out the following questions. Thank you very much, Writeacher. 1) First, the organization collects information. When it has proof that a person is a prisoner of conscience, it hands over that person’s case to a local group. 2)This group send (or
  13. Math 11 Foundations

    Last year, a local hockey association charged $10 a ticket and averaged 12000 in attendance in its 2000 capacity area. The committee calculated that for every $0.50 decreases in the price of the ticket, there would be 100 more tickets sold. what is the
  14. home inspection

    Which of the following is the main purpose of home inspection societies and professional associations? A.To license and regulate home inspectors B.To "self-regulate" the home inspection industry C.To certify people starting out in the home inspection
  15. Writing Evaluation (Writeacher!)

    What do you think? Have I written according to the directions? What improvements do you suggest? Write 2 paragraphs describing Annie Johnson's sitation ("New Directions" by Maya Angelou.) A: Annie Johnson’s situation shows the familiar struggle that many
  16. Chemistry

    I saw that article on Google - that is actually how I got the idea to sublimate the naphthalene. But thank you for the suggestion! It makes me feel much more confident to know that I am on the right track! Thank you! We have a lab where we have to separate
  17. L.A.-Check Answer

    According to "Life Without Gravity" why can astronauts' muscles become weak? a. Without gravity, the blood is rerouted from the legs to the head. b. Without gravity, the body "grows" as much as several inches. c. Without gravity, eating is difficult, so
  18. Chemistry

    Jack occasionally goes to work by bicycle where he exhales once per 3.00 sec. If in Jack’s every exhale is 4.50% CO2 (by volume), he exhales a total volume of 4.6 L each time, and it takes Jack 20.0 minutes to bike to work, how many grams of CO2 has he
  19. math

    at the local clothing store, 3 similar shirts and 4 similar jackets cost $360 and 1 shirt and 3 jackets cost $220. find the cost of each shirt.
  20. math

    at the local clothing store, 3 similar shirts and 4 similar jackets cost $360 and 1 shirt and 3 jackets cost $220. find the cost of each shirt.
  21. algebraic expression

    Whitney is speaking to four different classes at the local grade school . She will spend m minutes with each class, and she will have to wait 30 minutes before seeing the last group. How many minutes will Whitney spend at the school? Thank you.
  22. intermediate algebra

    A local electronics store will sell seven AC adapters and two rechargeable flashlights for $86, or three AC adapters and four rechargeable flashlights for $84. What is the price of a single AC adapter and a single rechargeable flashlight?
  23. Physics

    How much ice at 0 degrees celsius can be melted with 1kg of steam at 100 degrees celsius, assuming no loss of energy to the surroundings? Use specific latent heat values. The specific heat of water is 4200 J kg-1 K-1
  24. Physics

    A 95.1-g ice cube is initially at 0.0°C. (a) Find the change in entropy of the cube after it melts completely at 0.0°C. Hint: The latent heat of fusion for water is 3.33 105 J/kg. answer in J/kg (b) What is the change in entropy of the environment in
  25. chemistry

    if 27 grams of ice at 0 degrees celsius is added to 123 grams of water at 100 degrees celsius in an insulated container, calculate the final temperature. assume specific heat of water is 4.184 J/K g
  26. Chemistry

    I don't understand ice table at all..can anyone please guide me in how to solve the following question? : The pH of a 0.00250 mol/L solution of benzoic acid is 3.65. Calculate the Ka for the benzoic acid. (This question does not state that the given
  27. Math calculus

    An ice cube is 3 by 3 by 3 inches is melting in such a way that the length of one of its side is decreasing at a rate of half an inch per minute. Find the rate at which its surface area is decreasing at the moment when the volume of the cube is 8 cubic
  28. chemistry

    How do I find out how many ml of NaOH i need to titrate H3PO4. I used the ice table to knock off the two protons but im using a .2200M NaOH and do not Know how to determine the volume needed before hand. In other words i need some pre-calculations for
  29. Physics

    an ice skater with a mass of 80kg pushes off against a second skater with a mass of 32kg. both skaters are initially at rest. a. what is the total momentum of the system after the push off? b. if the larger skater moves off with a speed of 3m/s, what is
  30. American Government

    Which of the following is an example of a company trying to influence government to hurt its competition? A. a toy manufacturer seeking help from the Consumer Product Safety Commission B. local chambers of commerce holding fund-raisers for congressional
  31. geometry

    you are to design, draw and label the dimensions of 3 boxes that will hold enough detergent to do 18 loads of laundry. Each scoop of detergent does one load. The size of the scoop is 3in.x2in.x2in. all work must be shown on the work page. At the bottom of
  32. physics

    A stewardess pulls her 70 N flight bag a distance of 200 m along an airport floor at constant speed. The force she exerts is 40 N at an angle of 50 degrees above the horizontal. Find (a) the work she does, (b) the work done by the force of friction, and
  33. Algebra 1

    suppose you can work a total of no more than 20 hours per week at your two jobs. Babysitting pays $5 per hour, and your cashier job pays $6 per hour. youneed to earn at least $90per week to cover your expenses. Write a system of inequalities that show s
  34. legal and ethical issues

    Which element do you think plays the greatest role in influencing employee behavior? Explicit policy or implicit policy. First find out what explicit and implicit mean. Then think about a couple of job situations. Pretend you are the employer, then the
  35. Math

    At a local baseball game, the concession stand has two different meal choices. You can get 3 hotdogs and 1 drinks for $18.00 or you can get 2 hotdogs and 4 drinks for $22.00. If the price of hotdogs and drinks is the same for each meal, find how much it
  36. math

    speakeasy company offers customers a choice between 3 schemes:1st,a monthly charge of $15 + 5cents/ min.2nd,a monthly charge of $5 for the line rental +20 cents/min,3rd a(pay as you go) charge of 35cents/min with no monthly line rental charge.
  37. Business

    My brother and I are trying to start our own wireless indirect agent. We both have experience in managing a wireless store and the kowledge in rate plan and wireless market, but becasue we are a new business it is hard to get fiancing. We have dealed with
  38. Physics

    How many grams of ice must be added to 100 grams of water at 60 degrees so that its temperature drops to 20 degrees celcius? As far as i know I have to use: (Mass)*(specific heat of water) *(finaltemperature - initial temperature = ??
  39. physics

    A hockey puck slides across the ice at a con- stant speed. Which of the following is true? 1. The puck is moving and thus not in equi- librium. 2. The puck can be considered neither at rest nor in equilibrium. 3. It is in equilibrium. 4. None of these 5.
  40. College Chemistry

    Given 400.0 g of hot tea at 80.0C, what mass of ice at 0C must bea added to obtain iced tea at 10.0C? The specific heat of water is 4.18 J/(g*C), The specific heat of water is 4.184 kJ/mol.
  41. Physics

    A 10.3 kg block of ice slides without friction down a long track. The start of the track is 4.2 m higher than the end of the track, and the path traveled is 8.0 m. Find the speed of the block when it reaches the end of the track.
  42. physics

    A 2.50m -long, 450g rope pulls a 10.0kg block of ice across a horizontal, frictionless surface. The block accelerates at 2.50m/s2 . How much force pulls forward on the rope?
  43. physics

    A 5.0 MULTIPLIED BY 10 TO THE POWER OF 2g aluminium block is heated to 350 degrees celcius. determine the number of kilograms of ice at 0 degrees celcius that the aluminium block will melt as it cools.
  44. Physics

    When a block slides a certain distance down an incline the work done by gravity is 300 J. What is the work done by gravity if this block slides the same distance up the incline? a) 300 J b) zero c) -300 J d) It cannot be determined without knowing the
  45. physics/math

    Joe is a former basketball player who is now a work-out junkie, and especially loves to do push-ups. He was a good athlete, but not so good at science in school, especally not good in Physics. He wants you, yes you, to calculate how much work he does, in
  46. Physics

    A 855 N crate rests on the floor. a) How much work is required to move it at constant speed 7.7 m along the floor against a friction force of 180 N? b) How much work is required to move it at constant speed 7.7 m vertically? I really NEED help I am very
  47. TX HISTORY; HELP ASAP

    How did fighting in the civil war change the lives of Texas soldiers ? a) They came to support the cause of secession b) They traveled far from home to participate in bloody battles c) They earned enough money to buy cotton plantations and slaves d) They
  48. Criminal justice

    Write a 700- to 1,050-word paper in which you describe the issues facing police departments in today’s society. · Include a description of how local, state, and federal law enforcement agencies currently interact with the U.S. Department of Homeland
  49. criminal justice

    · Write a 700- to 1,050-word paper in which you describe the issues facing police departments in today’s society. · Include a description of how local, state, and federal law enforcement agencies currently interact with the U.S. Department of Homeland
  50. English Improving writing rough draft

    please check his for me thank you very much :) There are on going problems that need to be addressed.First there is uneven allocation of tasks. While Bonnie and Molly are working overtime at least twice a month, Jack and Rachel often have no work to do.
  51. SAT Essay

    Please critique and let me know how it is and what I can improve. Thank you! Assignment: Do you think that ease does not challenge us and that we need adversity to help us discover who we are? Plan and write an essay in which you develop your point of view
  52. math

    Calvin was at his local grocery store, and saw that they had gummy worms for sale. To satisfy his foreseeable sugar craving, he bought 72 bags of gummy worms. Upon exiting the store, he noticed the the ink on the receipt was smudged, and he could see the
  53. math

    Calvin was at his local grocery store, and saw that they had gummy worms for sale. To satisfy his foreseeable sugar craving, he bought 72 bags of gummy worms. Upon exiting the store, he noticed the the ink on the receipt was smudged, and he could see the
  54. fundamentals of policing

    Post a 350- to 700-word response, describing the duties, functions, and responsibilities of local and state law enforcement agencies and explain the major differences between the two. Then, identify three federal law enforcement agencies. Describe their
  55. physics

    A driver of a 7.50 N car passes a sign stating "Bridge Out 30 Meters Ahead." She slams on the brakes, coming to a stop in 10.0 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and
  56. buisness

    Which sentences highlight a unilateral contract? a. Monique goes to a supermarket and picks up a shampoo. She then goes to the counter and pays for the shampoo. b. John offers a ride back home to Jack in exchange for his favorite music DVD for a day. Jack
  57. English

    For homework I have to answer the following questions regarding Puerto Rican obituary by Pedro pietri but I am horrible at interpreting poems if someone can please help thank you "Puerto Rican Obituary", by Pedro Pietri: What has the American dream turned
  58. Physics

    A skier of mass 110 kg travels down a frictionless ski trial. a.) If the top of the trail is a height 200m above the bottom, what is the work done by gravity on the skier? b.) Find the velocity of the skier when he reaches the bottom of the ski trail.
  59. Chemistry

    Find the entropy change of the universe when 2 moles of water freezes at -10 degrees celsius. The delta G for the freezing of water at -10 degrees celsius is -210 J/mol and the heat of fusion of ice at this temperature is 5610 J/mol.
  60. science

    A 6.90 kg penguin runs onto a huge sheet of frictionless Arctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.47 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.49 N directed along the positive
  61. physics

    A 5.70 kg penguin runs onto a huge sheet of frictionless Arctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.35 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.45 N directed along the positive
  62. college

    At the center of a 50 m diameter circular ice rink, a 75 kg skater traveling north at 2.5 m/s collides with and holds onto a 60 kg skater who had been heading west at 3.5 m/s. How long will it take them to get to the edge of the rink. Where will the reach
  63. physics

    A 4.1 kg penguin runs onto a huge sheet of frictionless Antarctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.57 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.31 N directed along the positive
  64. chemistry

    The Kb of ammonia is 1.8 x 10–5. What is the percent ionization of a solution of ammonia, 0.50 mol L–1 NH3, that contains 0.020 mol L–1 of ammonium nitrate, NH4NO3? when i use the ICE table i don't end up with an unknown so im not sure what to do.
  65. Physics

    An ice skater, hasa rotational inertia of I = 4 kg m2, and spins at 2 rad/sec. Her rotational inertia then undergoes a change to 2 kg m2. Which of the following is true? a. Her angular momentum remains the same b. Her angular velocity increases c. Her
  66. physics

    Which one of these statements regarding non-conservative forces is FALSE? Select one: a. A non-conservative force cannot have a potential energy defined for it. b. The work done by a non-conservative force may be either positive or negative depending on
  67. physics

    Which one of these statements regarding non-conservative forces is FALSE? Select one: a. A non-conservative force cannot have a potential energy defined for it. b. The work done by a non-conservative force may be either positive or negative depending on
  68. math

    List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed
  69. Marketing

    You are interested in opening a SNOW BIZ snow cone shack. The SNOW BIZ company who wants to franchise this business to you has provided the following general information: Cost to make each snow cone: $0.25 ice, $0.05 plastic cone holder, $0.03 plastic
  70. finance

    The banks offers a rate of 8 1/4 percent with a 20percentcompensating balance requirement, or as an alternative, 9 3/4 percent with additional fees of 5,500 to cover services the bank is providing. In either case the rate on the loan is floating ( changes
  71. English

    Hello everybody! I've got some problems with my english homework,and I'd really appreciate our help! My homework is : name a stressfull job eg.:doctor,manager than describe why this job is so stresfull,what can be the causers of sress.Why is this bad if
  72. 11th grade math

    Suppose you earn $7.21 per hour and plan to work "h" hours per week. write an expression using variables that models the amount of money you will earn each week. Then, suppose you earn $10 in tips per week, regardless of the hours you work. How does this
  73. physics

    a book,initially at rest is pushed along a horizontal table top by a horizontal force of 2N. After 1s it has been moved 1.5m. The force of friction is 0.4N a.how much work is done on the book by the 2N force? b.how much work is done on the book by
  74. Math

    In a special local election, one candidate received 288 votes less than twice the number of votes of the opponent. How many votes did each candidate receive if the total number of votes in the election is 136,395?
  75. Algebra :( help me

    The table below shows the weekly earnings of two groups of employees working part-time at a local grocery store. GROUP A:$245, $224, $218, $295, $214, $312, $284 GROUP B:$223, $230, $310, $246, $295, $301, $215 PART A: Which measure best describe the
  76. physics

    What mass of steam at 100¡ãC must be mixed with 388 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 45.0¡ãC? The specific heat of water is 4186 J/kg¡¤K. The latent heat of fusion is 333 kJ/kg, and the
  77. chemistry-Buffer Q

    You have a solution of .5 L of 1.74g of NH3 and 4.15g of (NH4)2SO4. How many ml of 14M HCl is required for a pH of 9.00? I don't know how to go finish this one. I thought about figuring the concentrations of each (NH3, NH4), making an ice table and solving
  78. Math

    The ice rink sold 97 tickets for the afternoon session, for a total of $765. General admission tickets cost $10 and youth tickets cost $5 each. How many of each kind of tickets were sold?
  79. Physics

    A horizontal rope is tied to a 45.0kg box on frictionless ice. What is the tension in the rope if: A) The box is at rest? B) The box moves at a steady vx = 4.40m/s ? C) The box vx = 4.40m/s and ax = 4.60m/s2 ?
  80. College Algebra

    The ice rink sold 90 tickets for the afternoon session, for a total of $700. General admission tickets cost $10 and youth tickets cost $6 each. How many of each kind of tickets were sold?
  81. Math

    The ice rink sold 94 tickets for the afternoon session, for a total of $778. General admission tickets cost$10 and youth tickets cost $7 each. How many of each kind of tickets were sold?
  82. Chemistry

    How much energy does it take to convert 750 grams of ice at 0 degrees Celsius to liquid water at 40 degrees Celsius? (Specific Heat of water = 4.18 J/g*C and the heat of fusion = 334 J/g)
  83. maths

    tom takes 3days to do a piece of work while jerry takes only one day for the same. together, they both can finish the job in 15 days. in how many days tom will finish the work?
  84. English help

    Identify the infinitive phrase in the following sentence. Too many people drive to work when it would be just as easy for them to ride the bus. A. drive to work B. it would be C. just as easy D. to ride the bus I think it is A??
  85. math

    40 MEN CAN DO A PIECE OF WORK IN 30 DAYS,WORKING 8 HOURS DAILY.IN HOW MANY DAYS WILL 60 MEN FINISH THE WORK WHEN WORKING HOURS ARE REDUCED BY 25 PERCENT? A,19 B,30 C 20 1/3 D,26 2/3
  86. Civics

    When Hurricane Andrew struck Florida in 1992, many people were responsible for the safety of its citizens. Which was a primary responsibility of the federal government? Researching technology to detect future hurricanes Restoring water and electricity
  87. social studies

    Sorry...one more question! A feature of the American political system NOT adopted from practice in England is: a)appeal of disputed court decisions to higher courts b) legislative control of government finaces c) local government through town meetings d)
  88. grade 9 GEOGRAPHY

    I am doing a project on the mixedwood plains. I have written this question before but I just want to know if I am on the right track. I need to to find suggestions on how the sensitive tourist can minimize their impact on the local environment and
  89. Civics

    Lloyd enjoys deer hunting. He goes into local store to purchase a new gun. Which amendment to the Constitution ensures Lloyd's ability to purchase a new gun? 5th amendment 1st amendment 9th amendment 2nd amendment
  90. Civics

    Lloyd enjoys deer hunting. He goes into local store to purchase a new gun. Which amendment to the Constitution ensures Lloyd's ability to purchase a new gun? 5th amendment 1st amendment 9th amendment 2nd amendment
  91. accounting

    Y company offers its customers credit of 2/10,n 30. Most customers take advantage of the cash discount, mailing their payment to arrive on the 10th day following the date of the invoice. However X comany, Y largest customer, has recently begun sending
  92. physics

    You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upward acceleration of 19 m/s2. After 23 s, the engine shuts off and the rocket continues rising (in freefall) for a while. (Neglect
  93. Earth Science

    i have a few questions 1)what california geologic features formed as the result of erosion by glaciers? 2)which geologic processes formed most of californias nonmetallic mineral resources? 3)an oil well is usually drilled into? 4)which of the following is
  94. science linear equation

    A theater is presenting a program on drinking and driving for students and their parents. The proceeds will be donated to a local alcohol information center. Admission is $18 for parents and $9 for students. However, this situation has two constraints: The
  95. earth science

    "perhaps more than any other single measurement, atmospheric pressure is the best indicator of current and changing weather conditions." explain and discuss thy this statement is correct. provide some examples (hint: discuss the difference in high and low
  96. HSM 270

    I really need someone to explain this question to me please! Brainstorm ideas for alternative funding for the program you selected from Appendix B. Search the Internet or contact local human services organizations for ideas on obtaining nontraditional
  97. statistics

    The distribution of B.A. degrees conferred by a local college is listed below, by major. Major Frequency English 2073 Mathematics 2164 Chemistry 318 Physics 856 Liberal Arts 1358 Business 1676 Engineering 868 9313 What is the probability that a randomly
  98. university of phoenix

    It has been reported that 40% of children in the United States live in homes where both parents work to make ends meet. A school administrator claimed that more than 40% of children in his school district lived in homes where both parents work to make ends
  99. LOGICAL PUZZLE

    On the first three downs, the local high school football team had the following gains and losses: 6 yard gain, 10 yard loss, and a 12 yard gain. What is the total gain or loss, and did they manage to get another set of downs?
  100. Algebra

    Joylin receives a $50 gift card for the local movie theater for her birthday. She uses the card to purchase tickets and snacks for her family. If Joylin spends $6 more on tickets than she does on snacks, how much does Joylin spend on tickets?