Ciaria

Popular questions and responses by Ciaria
  1. Chemistry

    Identify the precipitate in this reaction: calcium nitrate reacts with sodium phosphate. 2Na3PO4 + 3Ca(NO3)2--->6NaNO3 + Ca3(PO4)2 is that right ?

    asked on March 3, 2015
  2. chemistry

    Calculate the hydroxide ion concentration of a solution with pH = 8.25.

    asked on March 11, 2015
  3. Chemistry help please

    What is the oxidation number of phosphorus in P2O3? O mostly always has a -2 charge, three O's = -6. The two P atoms must balance that charge with +6 since P2O3 overall has no charge. If 2 P = +6, then 1 P = +3. is that right ?

    asked on March 11, 2015
  4. I need help with this ALGEBRA

    The velocity of sound in air is given by the equation  , where v is the velocity in meters per second and t is the temperature in degrees Celsius. Find the temperature when the velocity is 329 meters per second by graphing the equation. Round the answer

    asked on March 17, 2015
  5. help

    Tritium (H-3) has a half-life of 12.3 years. How old is a bottle of olive oil if the tritium content is 25% that of a new sample of olive oil? Show all calculations leading to a solution.

    asked on March 11, 2015
  6. Algebra 2

    A sound wave is modeled with the equation . y=1/4cos 2pi/3treta a. Find the period. Explain your method. b. Find the amplitude. Explain your method. c. What is the equation of the midline? What does it represent? A- The period can not be found because

    asked on March 31, 2015
  7. Algebra 2

    What are the points of discontinuity? Are they all removable? Please show your work.  y=(x-5) / x^2 - 6x +5

    asked on March 31, 2015
  8. eNGlish

    What do the dust tracks in the title symbolize? A. poverty in a backwater southern community B. the path to a new way of life C. finding the way home after getting lost D. returning to one's roots B?

    asked on March 25, 2015
  9. chemistry

    A student collected the following data for a fixed volume of gas: Temperature (C) Pressure (mm of hg) 10 726 20 750 40 800 70 880 100 960 150 ??? Fill in the missing data point. Show all calculations leading to an answer. is the answer 1025 ?

    asked on March 12, 2015
  10. Spanish

    Es mejor que Uds. _____ en la excursión hoy porque mañana no hay suficiente tiempo. A. vayan B. van C. va D. vaya

    asked on March 14, 2015
  11. English 2

    is "The Poetic Interpretation of the Twist" by Cornelius Eady a literature poem ?

    asked on March 7, 2015
  12. chemistry

    Complete and balance this reaction: sulfuric acid reacts with barium chloride

    asked on March 3, 2015
  13. personal finance

    Which one of the following is not a financial intermediary? A. Security dealers B. Insurance companies C. Real estate investment trusts D. Pension funds D?

    asked on April 3, 2015
  14. Algebra2 Help please

    Compare the graphs of the inverse variations. Please provide at least 3 comparisons y= (-0.2/x) and y= (-0.3/x) -0.05, -0.075 , -0.1, -0.15 ?

    asked on April 1, 2015
  15. English 3

    A fictional event ... Am I supposed to write about a real story that has happened in MY life ? Or make up a story ? Write a short story that tells about a fictional event in which a central conflict is - or is not.

    asked on March 28, 2015
  16. Algebra

    What are the intercepts of the equation? Graph the equation. -3x + 4y = -12 A. x-intercept: (4, 0) y-intercept: (0, –3) B. x-intercept: (–3, 0) y-intercept: (0, 4) C. x-intercept: (4, 0) y-intercept: (0, –3) D. x-intercept: (–3, 0) y-intercept: (0,

    asked on March 16, 2015
  17. Algebra

    Name the property of real numbers illustrated by the equation. -4(x + 3) = -4x - 12 A. Associative Property of Multiplication B. Associative Property of Addition C. Distributive Property D. Commutative Property of Addition B or A ? I think its B

    asked on March 15, 2015
  18. SPanish

    In the spaces provided, write the vocabulary expression that could replace the underlined words in each sentence without significantly changing the meaning of the sentence. Do not use any of the underlined words again. ¿Viste el artículo en el periódico

    asked on March 15, 2015
  19. personal finance

    Money market funds usually offer all the following advantages except: A. higher returns than savings or checking accounts. B. deposit insurance. C. wire transfer privileges. D. check writing privileges. B?

    asked on April 3, 2015
  20. Physics

    All of the following are advantages of using the services of an investment company except: A. professional management. B. diversification. C. ease in selling shares. D. insurance protection against loss of principal. D?

    asked on April 3, 2015
  21. Algebra2 Help please

    Find the values of the 30th and 90th percentiles of the data. Please show your work. 129, 113, 200, 100, 105, 132, 100, 176, 146, 152

    asked on April 1, 2015
  22. Algebra 2

    Verify the identity , justify each step tanØ+cotØ = 1/ sin Ø cosØ

    asked on March 31, 2015
  23. English 3

    In which sentence is the word punitive used correctly? A. Mario proposed an ingenious, punitive solution to the math problem. B. Teresa’s report was punitive, and she added to its interest by presenting a brilliant slide show. C. The jury’s verdict

    asked on March 27, 2015
  24. Algebra

    The volume in cubic feet of a box can be expressed as (x)=x^3-6x^2=8x , or as the product of three linear factors with integer coefficients. The width of the box is x-2. Factor the polynomial to find linear expressions for the height and the length.

    asked on March 17, 2015
  25. Algebra

    For the given quadratic equation convert into vertex form, find the vertex, and find the value for x = 6. Show your work. y = -2x2 + 2x +2 -(1/2)y=x^2-x-1 (-1/2)y+1=x^2-x (-1/2)y+1=(x-1/2)^2-14 (-1/2)y=(x-1/2)^2-5/4 y=-2(x-1/2)^2+5/2 Is this right ?

    asked on March 17, 2015
  26. Algebra

    Is the inequality below sometimes, always, or never true? -2(2x + 9) > -4x + 9 A. always B. sometimes C. never C ?

    asked on March 15, 2015
  27. spanish

    Si vas al mar, vas a disfrutar del _____ y de _____.

    asked on March 14, 2015
  28. chemistry

    The freezing of water at 0⁰C can be represented as follows: H2O (l) ↔ H2O(s) The density of liquid water is 1.00 g/cm3. The density of ice is 0.92 g/cm3. explain why applying pressure causes ice to melt.

    asked on March 11, 2015
  29. chemistry

    Why must the number of electrons lost equal the number of electrons gained in every redox reaction?

    asked on March 11, 2015
  30. Chemistry

    According to the kinetic theory, gases consist of particles that A. occupy considerable volume. B. are relatively close together. C. exert attractive and repulsive forces on other particles. D. have motion that is constant, random, and rapid. C?

    asked on March 9, 2015
  31. Chemistry

    Why is the first ionization energy of a nonmetal much higher than that of an alkali metal in its same period?

    asked on March 3, 2015
  32. Chemistry

    How many nonbonding electrons does phosphorus have? is it 5 valence electrons

    asked on March 3, 2015
  33. Chemistry

    What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm3.

    asked on March 2, 2015
  34. physics

    A person needing help in planning a retirement program, setting aside educational funds, and deciding where and how much to invest could go to a: A. financial product company. B. financial planning firm. C. bank. D. All of the above organizations provide

    asked on April 3, 2015
  35. physics

    Money managers: A. help people set up budgets to control personal spending. B. typically work for investment banks. C. are on the “sell side” of Wall Street. D. are on the “buy side” of Wall Street. B?

    asked on April 3, 2015
  36. Math

    Given the two-way relative frequency table below, which of the following statements is correct? Autumn Winter Spring Summer Total Male 0.10 0.08 0.11 0.16 0.45 Female 0.14 0.12 0.05 0.24 0.55 Total 0.24 0.20 0.16 0.40 1 A. The largest percentage of people

    asked on April 2, 2015
  37. English

    I have found that when I travel some cities effuse warmth and hospitality while others are very difficult for a stranger to navigate. In this context, “effuse” most closely means A. ignore B. disseminate C. dislike D. earn C?

    asked on April 2, 2015
  38. english

    The friendly _____ looking puppy pawed on the window to attract the attention of the people walking by on the sidewalk. [L.11-12.2.a] A. : B. & C. , D. – C

    asked on April 2, 2015
  39. English

    Which word in the following sentence is spelt incorrectly? “The ambidectrous student was conspicuously popular on the baseball team because he could pitch with either his right or left hand.” A. pitch B. popular C. conspicuously D. ambidectrous D

    asked on April 2, 2015
  40. English

    What is most likely the purpose of King’s Letter from Birmingham Jail? [RI.9-10.6] A. to publicize his personal achievements as a community leader B. to influence others to join the nonviolent civil rights movement C. to provide a legal argument that

    asked on April 2, 2015
  41. English

    Which of the following words has experienced the most significant connotative and denotative shift over time as a result of conversational usage? A. fiery B. tepid C. cool D. warm A?

    asked on April 2, 2015
  42. Algebra 2

    Compare the graphs of the inverse variations. Please provide at least 3 comparisons y= (-0.2/x) and y= (-0.3/x) -0.05, -0.075 , -0.1, -0.15 ?

    asked on April 1, 2015
  43. Algebra 2

    Find the values of the 30th and 90th percentiles of the data. Please show your work. 129, 113, 200, 100, 105, 132, 100, 176, 146, 152

    asked on April 1, 2015
  44. Algebra 2

    Verify the identity . cot ( theta - pi / 2 )= - tan theta

    asked on April 1, 2015
  45. Algebra 2

    Verify the identity . cot (treta-pi/2) = -tan treta

    asked on April 1, 2015
  46. Algebra 2

    Please show your work to find the mean and standard deviation of the data. Round to the nearest tenth. 20, 16, 18, 14, 9, 20, 16 I know i have to add all them and divide the answer by 7. And that's my mean , But Idk how to get the standard deviation ?

    asked on March 31, 2015
  47. Algebra 2

    In  ,

    asked on March 31, 2015
  48. English 3

    Read the following passage from “Coyote v. Acme”: Such injuries sustained by Mr. Coyote have temporarily restricted his ability to make a living in his profession as predator. Mr. Coyote is self-employed and thus not eligible for Workmen’s

    asked on March 27, 2015
  49. English 3

    What part of this selection from The Woman Warrior best illustrates the complications faced by bicultural families? A. Brave Orchid’s memory of Ellis Island and her own immigration experience B. Brave Orchid’s concerns about her son in Vietnam C. the

    asked on March 27, 2015
  50. English

    Which quotation from “The Unknown Citizen” is the clearest example of satirical writing? A. “Except for the War till the day he retire / He worked in a factory and never got fired, . . .” B. “And his Health-card shows he was once in hospital but

    asked on March 25, 2015
  51. ENGlish

    In “A Rose for Emily,” what type of conflict is shown by Homer Barron's not being “a marrying man”? A. internal conflict in Miss Emily's mind B. external conflict between Homer and Miss Emily C. ambiguity about what Homer may have felt D.

    asked on March 24, 2015
  52. English

    Where was Olaudah Equiano story set ?

    asked on March 23, 2015
  53. English

    Was Olaudah Equiano moved to different slave ships trying to escape ?

    asked on March 23, 2015
  54. English 2

    Which statement does NOT describe a major difference between Franklin’s and Cisneros’ life and writing goals? A. He records his own life and she documents the lives of her and her community. B. He wants to achieve moral perfection and she wants to

    asked on March 20, 2015
  55. Us GOVERNMENT

    “The need for collecting large campaign funds would vanish [go away] if Congress provided an appropriation [federal money] for the proper . . . expenses of each of the great national parties, an appropriation ample [large] enough to meet the necessity

    asked on March 19, 2015
  56. U.S Government

    How was President Roosevelt’s proposal?

    asked on March 18, 2015
  57. US GOVERNMENT

    Political parties are a principal means by which the people’s will is made known to the government and government is held accountable to the people. Briefly describe party functions that achieve these goals.

    asked on March 18, 2015
  58. U.S Government

    1. This graph illustrates the fact that there is a ________________ turnout for general elections than for primaries. 2. When the will of the people is translated into public policy directly by the people themselves, ____________ exists.

    asked on March 18, 2015
  59. Help !

    Consider the leading term of the polynomial function. What is the end behavior of the graph? Describe the end behavior and provide the leading term. -3x5 + 9x4 + 5x3 + 3

    asked on March 17, 2015
  60. I need help with these please ALGEBRA

    1. Consider the leading term of the polynomial function. What is the end behavior of the graph? Describe the end behavior and provide the leading term. -3x5 + 9x4 + 5x3 + 3 2. Evaluate : sqrt7x(sqrtx-7sqrt7) show your work. 3. Solve the equation. Check for

    asked on March 17, 2015
  61. Algebra Help please

    In an experiment, a petri dish with a colony of bacteria is exposed to cold temperatures and then warmed again. Find a quadratic model for the data in the table. Type your answer below. show your work. time hours , 0 1 2 3 4 5 6 Population (1000s) 5.

    asked on March 17, 2015
  62. Algebra

    If a function, f(x) is shifted to the left four units, what will the transformed function look like?

    asked on March 17, 2015
  63. Algebra help please

    Simplify:  4sqrt400/4sqrt80 Show your work. 4sqrt400/4sqrt5 = 4sqrt80 4sqrt80=4sqrt16 * 4sqrt5= 2*4sqrt5= 2^4sqrt5 Is this right ?

    asked on March 17, 2015
  64. algebra

    For the function f(x) = x2 - 12, find (f o f-1)(4) A. 0 B. 4 C. 6 D. 10 A

    asked on March 16, 2015
  65. Algebra help please

    Let f(x) = x + 2 and g(x) = x2 Find ( g o f)(-5) A. -3 B. 9 C. 49 D. -10 B?

    asked on March 16, 2015
  66. Algebra help please

    Let f(x) = 3x - 6 and g(x) = x - 2. Find f/g and its domain. A. 3; all real numbers B. 3; all real numbers except x = 2 C. -3; all real numbers except x = 3 D. 1; all real numbers B ?

    asked on March 16, 2015
  67. Algebra help please

    Let f(x) = -5x - 4 and g(x) = 6x - 7. Find f(x) + g(x) A. x + 3 B. x - 11 C. -11x = 3b D. -11x - 11 C?

    asked on March 16, 2015
  68. Algebra

    1. What polynomial has a graph that passes through the given points? (-2, 2) (-1, -1) (1, 5) (3, 67) A. y = -x3 + 4x2 + 2x - 2 B. y = x3 + 4x2 + 2x - 2 C. y = x4 + 4x3 + 2x2 - 2x D. y = x3 - 4x2 - 2x - 2 B? 2. Write -2x 2(-5x 2 +4x 3) in standard form. A.

    asked on March 16, 2015
  69. algebra

    Insert , or = to make the sentence true. SQR3 SQR7 A. > B. < C. = C?

    asked on March 15, 2015
  70. algebra

    Evaluate the expression for the given value of the variable(s). -x2 - 4x; x = –3 A. –17 B. 11 C. –1 D. 3 d ?

    asked on March 15, 2015
  71. Spanish

    Creo que después de terminar el programa de estudios en computación, yo _____ todo lo que necesito para seguir esa carrera. A. supe B. sabía C. sé D. sabré B or d ?

    asked on March 14, 2015
  72. Spanish

    Algún día tendrás que _____. A. seguir una carrera B. ganarte la vida C. graduarte del colegio D. All of the above A or D ?

    asked on March 14, 2015
  73. spanish

    Como me gusta estar al aire libre y hacer ejercicio, creo que me gustaría seguir una carrera como _____. A. científico de laboratorio B. abogado C. cartero D. juez

    asked on March 14, 2015
  74. spanish

    Si quieres trabajar en un laboratorio químico, serás _____. A. arquitecto B. científico C. mecánico D. veterinario

    asked on March 14, 2015
  75. spanish

    Hicimos _____ a una catedral histórica en Madrid. A. un quiosco B. una gira C. un ruido D. una propina

    asked on March 14, 2015
  76. spanish

    Si necesitas dinero en efectivo, hay _____ en muchos lugares en la excursión. A. quioscos B. artesanías C. cajeros automáticos D. vendedores

    asked on March 14, 2015
  77. spanish

    Cuando el empleado del hotel es atento y cortés es bueno darle _____. A. un ascensor B. una llave C. una propina D. un itinerario

    asked on March 14, 2015
  78. Spanish

    Sabemos que Juan A. estudió matemáticas. B. estudió arte. C. estudió literatura española.

    asked on March 14, 2015
  79. Chemistry

    What is the cause of hexagonal structure ?

    asked on March 14, 2015
  80. chemistry

    The Kw of water varies with temperature. Calculate the pH of water at 46⁰C with a Kw = 1.219 x 10-14. Show all calculations leading to an answer.

    asked on March 13, 2015
  81. Chemistry

    If 5.40 kcal of heat is added to 1.00 kg of ice at 0⁰C, how much liquid water at 0⁰C is produced? Show all calculations leading to an answer.

    asked on March 13, 2015
  82. chemistry

    What salt results from the neutralization of acetic acid with potassium hydroxide?

    asked on March 12, 2015
  83. chemistry

    A student collected the following data for a fixed volume of gas:  Temperature(C) pressure(mm of hg) 10 726 20 750 40 800 70 880 100 960 150 ??? pressure is directly proportional to temp in Kelvins. So change temps to K emperature(K) pressure(mm of hg)

    asked on March 12, 2015
  84. chemistry

    What salt results from the neutralization of acetic acid with potassium hydroxide?

    asked on March 12, 2015
  85. Chemistry help please

    A student collected the following data for a fixed volume of gas:  Temperature(C) pressure(mm of hg) 10 726 20 750 40 800 70 880 100 960 150 ??? Fill in the missing data point. Show all calculations leading to an answer.

    asked on March 12, 2015
  86. chemistry

    If 5.40 kcal of heat is added to 1.00 kg of ice at 0⁰C, how much liquid water at 0⁰C is produced?

    asked on March 11, 2015
  87. Chemistry

    The Kw of water varies with temperature. Calculate the pH of water at 46⁰C with a Kw = 1.219 x 10-14.

    asked on March 11, 2015
  88. chemistry

    explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk.

    asked on March 11, 2015
  89. Chemistry help please

    You have two sealed jars of water at the same temperature. In the first jar there is a large amount of water. In the second jar there is a small amount of water. how the vapor pressure of water in the first jar compares with the vapor pressure of water in

    asked on March 11, 2015
  90. Chemistry help please

    What type of radiation is emitted when K-38 decays into Ca-38?

    asked on March 11, 2015
  91. chemistry

    explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk.

    asked on March 11, 2015
  92. chemistry

    why water expands when it freezes? Water expands when it freezes because it starts to bend. when all the water molecules are in this hexagonal structure, the same amount of water takes up more space than when the molecules are randomly arranged. For

    asked on March 11, 2015
  93. Chemistry

    You have two sealed jars of water at the same temperature. In the first jar there is a large amount of water. In the second jar there is a small amount of water. how does the vapor pressure of water in the first jar compares with the vapor pressure of

    asked on March 11, 2015
  94. chemistry

    how perspiration helps keep you cool on a hot day.? Perspiration keep’s you cool on a hot day because your really steamy and sweaty. You have no energy or strength to move. Your sweat drys up from your skin taking a little bit of your body heat with it.

    asked on March 11, 2015
  95. chemistry

    why gasoline wouldn't dissolve in water ?

    asked on March 11, 2015
  96. chemistry

    Absolute zero is A. the temperature at which the motion of particles theoretically ceases. B. defined as 0°C. C. the triple point for water. D. all of the above D?

    asked on March 9, 2015
  97. chemistry

    Perform this operation and report the answer to the correct number of significant figures: What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm3. Show all calculations leading to an answer. Vcube=

    asked on March 3, 2015
  98. Chemistry

    Write the formula for iron (III) sulfate. My answer is Fe2(SO4)3

    asked on March 3, 2015
  99. Chemistry

    If an element has 12 protons and 17 neutrons, how many electrons must it have?

    asked on March 3, 2015
  100. Chemistry

    Why are the atomic masses of elements usually decimal numbers?

    asked on March 3, 2015

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