1. Dr.Bob (thx) Check my work for this one pls

    What is the molar solubility of Sr3(AsO4)2 and the concentration of Sr^2+ and AsO4^-3 in a saturated solution at 25 deg Celsius? The Ksp is 1.3E-18. Show the balanced reaction. Below, I write M.S. (molecular solubility) 1)Sr3(AsO4)2<---> 3Sr^2+ +
  2. psychology - revised

    Question How accurately do you think these exercises evaluate self-concept and self-esteem? How do self-concept and self-esteem influence your self-identity? How do self-concept, self-esteem, and self-identity differ? When it comes to accuracy, self-esteem
  3. Chemistry

    What happens to the mass of a beaker of water with a teaspoon of sugar in it measured on a balance pan compared to a teaspoon of sugar and a beaker of water separated on a balance pan? does the mass increase, decrease or stay the same? and why?
  4. Spanish

    Can someone proofread this for me. I know I don't have the accents in- its for a presentation not a paper. Thanks. Hola. Me llamo Danilo. Soy de Massachusetts. Tengo catorce anos. Mis cumpleanos es el trece de febrero. Mi clase favorita es las ciencias
  5. COM

    Read essay below and explain how effectively did the author persuade you and why? _______________________________________ The United States is the only modernized Western nation that does not offer publically funded health care to all its citizens; the
  6. erosion

    Explain why erosion is less of a problem in the west than the east Erosion by water is less in the west, because there is less rain. In the west, erosion by wind is greater, however, wind erosion is very small when compared to water erosion.
  7. English; Help..

    Imagine that you are an agent who is interested in publishing new authors. Choose any book you like and present the book to a publisher in New York. You want to be the person responsible for putting the book on the shelf. You should convince the publisher
  8. English

    Ben Smith on Obama: 'Lipstick on a pig' Comment on Ben Smith's commentary on the "lipstick on a pig" remark copied below. Write about commenting on the motives of Obama's surrogates joking that Palin's record can't be concealed with lipstick, and the
  9. Public HEALTH

    Please check if my answers are correct. Thanks 1. The purpose of environmental epidemiology studies is to prove that an environmental agent is the cause of a particular adverse effect. (Points: 3) True False 1=false 2. Which of the following is not an
  10. IT

    Hi, Can anyone tell me if I have picked the correct TRUE statements .. From the pairs of terms given below, choose the option that offers, in the correct order, the most appropriate pair for the blanks in the following statement. _______DHCP_ is a protocol
  11. proofread introduction

    i'm writing a informative essay on a festival i celebrate in my culture. i decided to separate the history of the festival and the introduction of the essay into too paragraphs. so my question is if my introduction sounds okay without the history because
  12. Science

    13.)How can substance A and B be compared? Choose all that apply. A.)The particles of substance A have more energy than the particles of substance B.*** B.)The particles of substance A are more tightly held together than the particles of substance B.
  13. U.S. GOVERNMENT

    1)The federal government has more expressed powers than implied powers. A) True B) False 2)Two inherent powers of the federal government are to regulate immigration and deport aliens. A) True B) False 3)Implied powers are essentially granted through the
  14. Probability

    We are told that events A and B are conditionally independent, given a third event C, and that P(B∣C)>0. For each one of the following statements, decide whether the statement is “Always true", or “Not always true." A and B are conditionally
  15. Language arts

    A Surprising Point of View: A Television Play in Two Acts Characters: (in order of appearance) 1. JASON: a boy of about 14. He is a student in Ms. Smith’s English class. He regularly misbehaves in order to get attention, and he doesn’t apply himself to
  16. English III

    what is the rhetorical appeal in this sentence? Pathos or ethos? "A geek, according to Webster's New World Dictionary, is a street performer who shocks the public by biting off heads of live chickens. It is a telling fact about our language and our culture
  17. Math- repost

    This is a geometry question about disjunctions. The symbol "v" represents "or". "~" stands for "negation of" Here are two questions I need help with: 1. When p v ~q is false, then p is ______ and q is _____. I think "false" belongs in both spaces. 2. When
  18. statistics

    10. You have proposed a hypothesis that right-handed (RH) subjects will be superior in spatial analysis compared to left-handed (LH) subjects. Spatial analysis skills are being assessed on a scale which yields scores on a linear numerical scale. Given the
  19. Math

    A survey given to a random sample of 250 students at a small University asks which facility they use most often. The results are shown in the table above. If the results of the sample are projected to the entire student population 1,000 students, which of
  20. Chemistry

    Choose the true statements regarding the charge-minimized Lewis structure(s) of the BrO2- ion. (selet all that apply) a. There is only one charge-minimized structure for this ion. b. There are two charge-minimized resonance structures for this ion. c. The
  21. economics

    some study guide questions i am stumped on 1 uncertainty about the future is likely to a increase current spending b either increase or decrease c decrease current spending d no impact on current spending think it's d 2 as the general price level increases
  22. Visual Basic Programming in Visual Studio 2015

    I have an application program to submit help tickets. The problem is the error messages are only supposed to pop up when someone doesn't format it correctly but it either don't or comes up after typing when there is no errors. The next issue is my msgbox
  23. physics

    You know that you can safely stand on the hang-over end of a heavy plank that rests on a table. How far depends on your mass and the mass of the plank. Suppose you can stand on the end of a plank that overhangs the edge of the supporting table 1/4 its
  24. physics # 8

    8. A large explosion is heard by two people. The first is located 10 meters away and the second is located 40 meters away. By which factor is the intensity of the second observer compared to the first? a.) 16 b.) 4 c.) 1/4 d) 1/16 e.) 1/900 Ever heard of
  25. Algebra 1

    Can someone please check my answers? Thanks! :) 1.) Which of the following inequalities is true for all real values of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤94x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: B. 2.) Which of the following
  26. Spanish

    Una noche, cuando yo era chica, miré por la cerradura de una puerta y esto es lo que ví: ví una mesa, ví una silla, ví un cojín, y ví una vela. La mesa estaba sobre el piso, la silla estaba sobre la mesa, el cojín estaba sobre la silla, y la vela
  27. volume,mass,weight

    if you travelled to a planet that had twice the force of gravity of earth and you have taken a small mass that is 1kg what is the mass weight and volume of the 1kg object on the new planet compared to earth
  28. Macroeconomics

    What is the primary difference between normative and positive economics? A. Positive economics makes value judgments inappropriate to scientific research. B. Normative economics is more firmly rooted in scientific tradition. C. Governments use normative
  29. History- check my essay!

    Can someone tell me what they think of what I wrote? Here is the question and my answer: (This homework question was removed due to a copyright claim submitted by K12 Inc.) Answer: Winston Churchill, a strong leader who told it like it was. He was a true
  30. Health

    1.)It is important to choose simple carbohydrates for breakfast to get you started for your day. A.)True or B.)False My answer: A 2.)Each meal must include a food from each food group in MyPlate. A.)True or B.)False 3.)When choosing a snack it it important
  31. science

    1.Is the following statement true or false?Solar panels collect energy from the sun that can then power a lamp in a home. A.True B.False 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B.engines C.mines
  32. math

    (a). Is it true that for all set of positive integers a, b, c. gcd(a,c) + gcd(b,c) = gcd(a + b,c). Explain (b) Is it true that there exist a set of positive integers a,b,c, such that gcd(a,c) + gcd(b,c) = gcd(a + b,c). Explain
  33. Calc 1

    True or False. Explain. If lim f(x)=L x → a then f(a)=L
  34. math

    what could i use to determine the probability that i will get at least 8 of 15 true or false questions right?
  35. Literature

    If you consider The Call of the Wild to be an Allegory,which one of the following statements would be true?
  36. english

    Plot is the artificial ordering of events true?
  37. Math

    Which of the following statements must always be true of two similar non congruent triangle?
  38. english

    The novel followed the drama as a major form in England. true?
  39. math

    what is true of all values of x that will make divisible 2*x by6
  40. Anonymous

    Which of the following statements is true regarding the construction of the transcontinental railway
  41. algebra

    percent means hundredth true or false?
  42. math

    Place parentheses in the following equation to make it true. 6 + 6 ÷ 6 x 6 - 6 = 0
  43. Help Please

    True or False? Beer and wine are less intoxicating then whiskey.
  44. science

    if the expiremenal density of something is 2.66 but the true is 2.7 what is the percent error?
  45. Math

    I don't understand how this statement is true: If AB = BC then B is the midpoint of AC
  46. Physics (HELP)

    Lenses can be either converging or diverging. True False
  47. algebra

    Insert<,>or=to make the sentence true -1/3-2/5 answers are. = < >
  48. Philosophy

    What does Socrates argue that death is, and why do true philosophers welcome it?
  49. math

    Find a number that makes the statement true 1/2 < /8
  50. history

    Which of the following statements is true regarding the construction of the transcontinental railway?
  51. CRT205

    Which of the following, if true, would best explain the material presented in the table?
  52. Science

    Carbon could be classed as a metal true or fales
  53. math

    4=4*6-2+3 Where should I put the grouping symbols to make this true??
  54. Math

    how do you know whether an equation is true, false, or an open sentence?
  55. math

    is eash expression true?write yes or no. 1.6X3+4=22
  56. english

    Free verse is poetry that has no rhythm true?
  57. algebra

    $6 for two pounds is an example of unit rate. True or False?
  58. Math

    True or false or conclude the functions f(x) = x squared - x + 7
  59. Math

    I have a question. My teacher wrote down that 0 is less than or equal to 10 is true. Why is that?
  60. math

    6 6 6 6 = 5 fill in the expressions to make this equation true
  61. Geometry

    The quadrilateral with these following vertices is a parallelogram. (-4, -3), (2, -3), (4, -6), (-4, -6) True False
  62. Technical writing

    Always use a comma before somebody's name in a sentence. A.true B.false B
  63. Calculus II

    If {an} (a sequence) is decreasing and an > 0 for all n, then {an} is convergent. True/False?
  64. statistics

    A correlation of 0 always means there is no relationship between x and y true or false?
  65. Math

    2/3>3/ number that makes the statement true.. I am confused
  66. Math Geometery

    Is this true? It is possible for two rectangles to have the same area without having the same perimeter??
  67. chemistry

    Is the following sentence true or false? The value of an error must be positive.
  68. Geometry

    If in Line AB you have points K and L,no distances are given- Which statement is true? AK<KB, AL<LB, AL>BK,KL<LB, or AL=BK>AB. Why can't I get this? Thanks
  69. math

    what percent of the total population believed saying to be true?
  70. English

    What is the "true story" element in the memoir, I am Malala?
  71. Math

    True or False. A quadrilateral with these following vertices is a parallelogram. (-4,-3),(2,-3),(4,-6),(-4,-6)
  72. English

    true or false all the words in could have been prevented are verbs.
  73. math

    True or false? Explain, all multiples of 3 are composite
  74. GEOMETRY

    True or false? Any two concurrent lines are coplanar
  75. Math

    The circumference of a circle with radius r is πr2 Is this true?
  76. Math

    A cube is both a polyhedron and a prism. This isn't true right?
  77. Math

    Where do u place the grouping symbols to make this true? 3×5-8+7-3÷6=13
  78. physics

    is the expression f=ma, true in all cases.give reasons
  79. Math

    where would you put the parentheses to make this true 124-6 x 0 + 15 = 34
  80. Algebra 1A

    Could someone solve this for me please? (-3).(-7)>(-3)(-4) and also determine whether the inequality is true or false.Thank you
  81. literature

    if you consider the call of the wild to be an allegory which one of the following statements would be true
  82. Math

    Choose the sign that makes this sentence true 7/9 2/3
  83. Math

    The circumference of a circle with radius r is πr2 Is this true?
  84. math logs - please help

    True or false: 2 ln x / ln 5 = ln x^2 - ln 5 for all positive values of x.
  85. math

    Use parenthesis to make statement true 2x8+5-3=36
  86. english

    if you consider the call of the wild to be an allegory which one of the following statements would be true?
  87. Chemistry

    if in a solution the [H+]= 1x10-5M, then the [OH-] equals the same. true or false
  88. History

    which of the followin was true of the Jusiciary act of 1801?
  89. Math Statistics

    True or false? The value of the correlation coefficient can be between 0 and 1.
  90. Chemistry

    Condensation is considered an exothermic process is this true?
  91. ALGEBRA

    what are five ordered pairs that make this equation true Y = 20 + X/3 (that's x OVER 3)
  92. Grammar

    “Follow up” is never a verb. A) True B) False I answered F
  93. Math

    Every Square is a rhombus. True or False? This one has me confused.
  94. math

    Which symbol is used to make -6? |-8| a true statement? A. > B. < C. = Is the answer B? Thank you
  95. math

    The function f(x)=(x-2)^4 has an inflection point at x=2.It is true or false.
  96. Literature

    if you consider the call of the wild to be and allegory, which one of the following statements would be true?
  97. probability

    How many ways are there to roll out a 3 question True or False?
  98. math

    How many ways are there to roll out a 3 question True or False?
  99. Calculus

    Is this statment true? Please explain. At a relative extrema, f'(x) = 0
  100. math

    Insert parentheses to make the statement true; 6 x 5 - 2^2 = 45