1. Chemistry (Check)

    True or False The empirical formula of a compound is always the same as the molecular compound. My Answear: True The empirical formula for acetylene is CH. The molecular formula is C2H2. Another example: The empirical formula for glucose is CH2O. The
  2. Health And Physical Ed

    true or false the main process for digestion takes place in the stomach true false*** regular excersise stimulates_____which keeps the skeletal muscles moving to assist in digestion and excretion. peristalis ures digestion*** villi the main process of
  3. Chemistry

    True or False: A non-spontaneous reaction is converted into a spontaneous reaction in a voltaic cell by the expense of electrical energy. I believe it is true because in a non spontaneous reaction, energy must be induced in order for it to occur. Is this
  4. Chemistry

    For the following redox reaction, identify the oxidizing agent and the reducing agent. Cu(NO3)2 (aq) + Mg(s) ® Cu(s) + Mg(NO3)2 (aq
  5. overview of teaching techniques

    which of the following statements about asking questions is true? (a)low level questions tend to promote academic achievement in students (b)most teachers in classrooms today ask kigh level questions (c)questions should be worded as clearly and simple as
  6. Psychology

    I would like for someone to confirm that my choice of answers for these three questions are correct. If there is a incorrect answer out of the three questions that I chose please advise me to the right choice. Thank you! 1). Dr. Casey is evaluating a
  7. ALGEBRA

    Fill in the blanks. (Round your answers to the nearest dollar.) Interest Principal Rate Time Future Value
  8. math

    jocelyn got 19 correct answers out of 25 questions on her last test. What percent of the questions did she answer correctly?
  9. Chemistry (please check my answer)

    Identify a false statement about how to protect iron from corrosion. A. Coat the surface with oil, paint, or plastic. B. Attach a metal that is more easily reduced. ******* C. Exclude air and water. D. Attach a metal that is a better reducing agent.
  10. Honors Chemistry

    I have two questions on my review study guide that go like this: 1) What is the equation for calculating the energy change that occurs when a substance changes state? 2) What is the equation for calculating the energy change that occurs when a substance
  11. In Science Plant Quiz

    I am in Grade3 looking for Plants Quiz Questions and Answers, like objective type Questions need, please let me know the link where I can find ?
  12. math-binomial prob

    I do not understand the binomial theorem. One of my questions is "there are 5 mutiple choice questions with 4 possible answers each. What is the probability of getting more than 3, exactly 3, and less than 3 correct?" Thanks for any help:)
  13. Calculus

    Answer the following questions for the function f(x) = sin^2(x/3) defined on the interval [ -9.424778, 2.356194]. Rememer that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . b.) A global minimum for this
  14. 3-D Computer Modeling

    1. In the simplest terms, which of the following is 3-D modeling is all about? A. Computers B. Collaboration C. Creativity D. Shapes 2. Only animate objects can be made into three dimensions. A. True B. False 3. Nothing has revolutionized animation like
  15. GOVERNMENT

    Please help. I'm trying to figure these True or False questions. A President's threat to grant amnesty can sometimes convince Congress to make changes in a bill to satisfy the President's objections. T or F I think it's true. Am I right? As the nation has
  16. medical terminology

    I'm taking the medical terminology course and I'm at the part of the course that is working with ICD 9 CM codes. I'm in Chapter 2 of the Medical & Dental Associates, P.C. Insurance Forms Preparation work book and now I'm trying to do the exercises but I
  17. English

    I have written my answers as following. Please improve my answers if needed: The story "The Wedding Gift" by Thomas Raddall makes use of symbolism. A) Explain what the snow represents. The snow in the short story is the representation of the hope and
  18. English

    I have written my answers as following. Please improve my answers if needed: The story "The Wedding Gift" by Thomas Raddall makes use of symbolism. A) Explain what the snow represents. The snow in the short story is the representation of the hope and
  19. English

    1. What class are you in? I'm in the second class. I'm class 2. 2. What year and what class are you in? I'm in the second year and second class. I'm a student in class 2-2. (Are the questions and answers correct? Do you have more questions and answers
  20. English

    True or False. The first-person narrator may slant the presentation of events. -True Is the narrator always the voice of the author? -No, because the narrator could be anyone. Am I right?
  21. Math

    Round the larger factor to the graetest place. 55*4 round 50 *4 993*6 rounds to 1,000*6 735*3 rounds to 700*3 1,914*3 rounds to 2,000*3 4,722*6 rounds to 5,000 495*3 rounds to 500*3 Please ,, My answers : true or false
  22. geometry

    "Determine whether the conjecture is true or false.Give a counterexample for any false conjecture". Given: x = 5 Conjecture: m = 5 PLEASE HELP!!!
  23. Grammar

    Determine if the following sentences employ the correct use of commas and apostrophes. True=correct False=wrong 1. The child was alert upon awakening, nonetheless we felt a full workup was best at this time. Answer: True Looks good to me - flows nice.
  24. Sociology

    Sociologist agreed upon certain explanations for prejudice and discrimination. Which of the following is NOT one of these explanations? socialization scapegoating dependency ratio economic competition Stereotyping is the practice of placing the blame for
  25. Grammar

    True or False Is the following sentence properly functuated. The young appearing patient went to the doctor's office. Answer is FALSE My question is WHY? - Is it BAD sentence structure - we have ruled out that the apostrope is CORRECT. Should there be a
  26. chemistry

    The kinds of interactions that exist between CH3COOH molecules include dipole-dipole (including hydrogen bonding) interactions and London forces.True or False Its false there are no hydrogen bonds?
  27. Chemistry

    1. For the reaction 2N2O(g) ⇋ O2(g) + 2N2(g), what happens to the equilibrium position if the pressure decreases? A. Shift to the right B. Shift to the left C. Doubles D. Does nothing E. Halves 2. if an equilibrium reaction shifts to the right when the
  28. Science

    Instinct differs from learned behavior in that instinctive behavior: A. does not change; learned behavior does. B. is acquired; learned behavior is genetic. C. is adaptive; learned behavior is not. D. All of these answers are true. is it A 2. The carrying
  29. Environmental Science

    True or False: 28. Hydroelectric energy is produced by flowing water turning a turbine which generates electricity. TRUE 32. Geothermal energy is generated when heated water or steam is pumped up from inside the Earth to power a turbine that generates
  30. Computer Science

    I need help with this question please! Please write me step by step instructions or how should I begin the problem. Thank you for your time ;) Write a function that takes an array and returns true if all the elements in the array are positive, otherwise,
  31. SCIENCE

    Sediment cores measured for containment levels have the highest levels of PCB's from the early 1960's. True or false I think this is true? right? Help Yes, it is true in most cases. An examp-le is shown at http://pubs.usgs.gov/circ/circ1171/html/cores.htm
  32. Social Studies

    When (gerrymandered) elections are conducted, all voters in a state choose from the same pool of candidates. Gerrymandered is the underlined term. True or False? I know it's false but I'm not sure which term to replace it with. I think it's at-large
  33. Math

    determine whether each conjecture is true or false. Give a counterexample for any false conjecture Given: Points A and B are collinear. Conjecture: Points A and B form a line.
  34. other Quadratic equations

    The problem is 7x^3-x+1=x^3+3x^2+x. Find all real answers. I came upwith two answers 3x^2=1 and 2x=1/2. The first answer just does not look right. I must be forgeting something! You can check them by putting in x=1/4 (the second answer), and then x=+-
  35. M

    Small muscle usually occurs before large muscle development think false
  36. English

    Hi there. I'm from Poland and I'm studying English. I need some help with a True/False exercise. There's a piece of text and there's a question below it and you need to answer it with true or false. My query is especially aimed at English Teacher's and
  37. math-true/false

    9.)The actual weight of 2-pound sacks of salted peanuts is found to be normally distributed with a mean equal to 2.04 pounds and a standard deviation of 0.25 pounds. Given this information, the probability of a sack weighing more than 2.40 pounds is
  38. Math

    True or false and if false write a true statement 1. A right triangle has three right angles. 2. A triangle that has three sides of the same length is an equilateral triangle. 3. An obtuse triangle has two angles that are acute. 4. In a right triangle the
  39. IPC

    Sometimes thermal energy and sound energy can be harnessed to do useful work. However, these types of energy dissipate rapidly. Thermal energy produced by friction cannot usually be used to do work. A) True B) False my question is; it says they can be used
  40. to kill a mockingbird

    which details help the reaer understand that the jail house is a symbol of maycomb's resistance to progress? These are questions that you should be able to answer directly from the book. Please let us know what you think, and we'll give you feedback. =)
  41. MATH HELP MS SUE OR SOMEONE

    Is the following statement true or false? Justify your answer using what you know about diameters and chords. Every diameter of a circle is a chord. True. Every diameter of a circle is a chord. This is true because every diameter passes through the center
  42. math

    Is the following statement true or false? Justify your answer using what you know about diameters and chords. Every diameter of a circle is a chord. True. Every diameter of a circle is a chord. This is true because every diameter passes through the center
  43. chemistry

    I would love some input on a few problems, listed below. My answers follow the questions 1. Would it be feasable to store a solution of lead nitrate in a container of metallic zinc? Why or why not? No, it would not. A chemical reaction takes place, as the
  44. chemistry

    I would love some input on a few problems, listed below. My answers follow the questions 1. Would it be feasable to store a solution of lead nitrate in a container of metallic zinc? Why or why not? No, it would not. A chemical reaction takes place, as the
  45. Stats

    You are taking a multiple choice test that has 20 questions with 4 possible answers each. You randoming quess each answer. What is the probality of getting 7 questions correct?
  46. Probability

    You are taking a multiple choice test that has 20 questions with 4 possible answers each. You randoming quess each answer. What is the probality of getting 7 questions correct?
  47. ALGEBRA

    I NEED SOMEONE TO CHECK THESE PLEASE!!! IF B IS REPLACED WITH A NUMBER THAT SHOWS THE RELATIONSHIP INDICATED IN THE TABLE, ARE THESE ANSWERS CORRECT? Y = -X + B X Y 1 0 2 -1 8 -7 10 ? 20 ? 40 ? SO,
  48. drivers ed

    when crossing multilane highways, you should treat each side as a one way street. TRUE FALSE??? I would say true. If there is an island in the middle, cross one half of the highway at a time. And nearly all US highways have an island in the middle. I think
  49. Grammar

    Determine if the following sentence employ Correct use of Commas and apostrophes.True=correct False=wrong 1. The child was initially started on ceftriazone, but developed a rash and was therefore changed to chloramphenicol. Answer: TRUE nedd the comma
  50. ALGEBRA

    Fill in the blanks. (Round your answers to the nearest dollar.) Interest Principal Rate Time Future Value $437 $ 5% 8 yr $
  51. U.S. History (Check) (Reed)

    1. When the Vietnam War ended... a) Many Americans wanted to return and win b) Many Vietnamese wanted to leave the county for the safety of America c) Many people still trusted the government and its decisions A: b? 2. Roughly how many soldiers were killed
  52. computer

    When you work with headers and footers in Word, the Header and Footer Tools tab or toolbar displays only when you are actually working within the header or footer. True False True?
  53. science

    According to Peter Saundry, there is no true universal code of ethics because standards ods conduct vary from place to place and time to time. True or False
  54. law please check my answer

    please check my answer thanks :) Dr Bob thinks Sue a minor needs an operation . Sue's parents give their consent to the oeration this is an example of an informed consent True or False I said True
  55. Dog Hunting Training

    Please check my answer thanks :) True or False The Rhodesian Ridgeback in not considered a versatile hunting breed ( however Pointer Weimaraner and Bruttany are versatile hunting breeds) I said that is True
  56. Science

    Lack of oxygen in a pond may be a limiting factor. True or False? Please reply ASAP, thanks. Limiting factor for what? For fish and other animal life, this would be true. I hope this helps. Thanks for asking.
  57. Math -Please help me!!! I'm desperate for help!

    I need help: Emmett has a 15-year $115,000 mortgage at 7.1% His monthly payment is $1,040.09 Find the principal after the first payment. I know to multiply 115,000 by 7.1 divided into 12 months, then subtract that answer by $1,040.09. When I mulitply
  58. General

    Please understand that I am not upset with anyone or whatever I just want to know something. I have some work to be checked and the regular tutors here say that "we will be happy to critque your thinking" right? Ok so when someone comes to this site and
  59. chem

    The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X
  60. chemistry

    The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X
  61. Chemistry

    The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X
  62. Algebra

    2x + 3y = 6 What is the question? You cannot solve for both x and y without a second independent equation, but you can express one variable in terms of the other. For example, 2x = 6 - 3y, so x = -3y/2 + 3 solve each literal equation for the indicated
  63. matha

    Please I am lost on how to find the derivative of function using first principal,could someone please work out an example on how to solve such problem?
  64. American History

    True or False The population of the United States dropped sharply after World War II. -----------------my answer: True Because world war II resulted in more deaths and destroyed more propertey than any other was in history. is it right?
  65. eng 122

    The modification of text with the intent of changing phrases, changing words, or interspacing the student's work into the plagiarized work is plagiarism. (Points : 1) True False answer true
  66. Hospitality

    According to the Farm to Table speaker's, local Farmer's Market's are a key source of produce and other food products for them weekly True False I say, true because food is what farmers produce?
  67. Science

    According to Peter Saundry there is no true universal code of ethics because standards of conduct vary from place-to-place and time to time. True or false
  68. Health/ Basic Clinical Procedures

    please check my answer thanks True or False The purpose of OSHA Bloodborne pathogens Standards is to prevent exposure of employees to bloodborne pathogens I said True
  69. Health/ Basic Clinical Procedures

    please check my answer thanks true or false Mercury glass thermometers are being repalced by disposable,and digital thermometers mainly because the riskof mercury posoning I said true
  70. History

    True False After emancipation, blacks joined the Confederate Army in droves. I guess this would be true but, much more African Americans joined the Union Army.
  71. Career

    1. A job objective should: (1 point) A.)Persuade the reader to hire you B.)State the position you are applying for C.)List your work history D.)Give reference information 2.)The second paragraph of a cover letter is your chance to: (1 point) A.)state why
  72. Strategies for the independent learner

    1.When you approach a text, you should A. survey it, using the technique called SQ3R. B. dive right in at the first page and read the assigned section. C. skip over words you don’t know. D. read only the boldface type. 7.You might want to review as you
  73. Geography

    18. National migration flows can also be thought of as internal migration flows. True False I think it's false?
  74. Biconditional statements

    ™PQR and ™QRS are supplementary if and only if m™PQR = m™QRS = 90°. true or false if false provide a couterexample
  75. world geography

    mexico is the highest indebted developing country?true or false,(false)mexico is the second highest-----.
  76. English Expression

    Q1) I'm sorry. That's all right. Think nothing of it. It's nothing. Not at all. Think nothing of it. Q2) Thank you. You're welcome. Don't mention it. Not at all. It's my pleasure. It's nothing. Are the answers to the two questions all correct? Would you
  77. Math

    A math quiz is made up of 5 multiple choice questions, each with 4 possible answers. How many possible sets of answers are there?
  78. Spanish for María

    Are you sure you understood the answers to the two posts this morning? Please look at my answers and explanations and then post any questions you have. Sra
  79. PLZ HELP!!!! communication

    DEFINITION----Selective listening: Involves focusing only on particualr parts of communication QUESTION---Selective listening is effective because we focus on the most important parts of a message. True or False my only problem is the deffiniton says
  80. English

    True or False A helping verb is the verb that helps the main verb make its statement. True???
  81. equations

    decide whether each equation is true or false.For each true equation,write the number property shown by the equation.0+6=6
  82. AP Chemistry

    2 Questions (Multi-choice and T/F, though not sure if they're right, and these 2 questions have no correspondence to each other) 1.) a.) Consider the following system at equilibrium where Kc = 1.20E-2 and H° = 87.9 kJ/mol at 500 K. PCl5 (g) PCl3 (g) + Cl2
  83. english

    First, it seems clear that even if there are occasional small dips in the consumption of petroleum, the general trend shows no sign of a real permanent decrease. Second, petroleum reserves are not being discovered as fast as petroleum is currently being
  84. Physics

    I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30
  85. Calc

    True or false: a) if f(x) is continuous at a, then the limit of f(x) as x approaches a exists b) if the limit of f(x) as x approaches a exists, then f(x) is continuous at a My answer: a) false b) true
  86. Calculus

    True or false: a) if f(x) is continuous at a, then the limit of f(x) as x approaches a exists b) if the limit of f(x) as x approaches a exists, then f(x) is continuous at a My answer: a) false b) true
  87. "Jiskha" Question

    So who exactly answers any homework questions I have for school? IM just wondering ya'know?How reliable are the answers? ~fanofchan
  88. math

    If a test has 25 questions with 4 possible answers per questions, how many possible answer combinations are there?
  89. STATISTICS

    True or False? A researcher is interested in studying whether there is a correlation of IQ with health. For this purpose he selected a sample of 261 people and asked them to complete two questionnaires: one for IQ and one for health. After evaluating the
  90. biology

    In a pre-lab for nutrient food testing , I was assigned to answer these questions, but I have no idea what they are talking about. And no, we have not discusses the answers in class. Here are the questions: Answer the following questions: 1. What is a
  91. Statistics (2 mc probs)

    I have the following two multiple choice questions that are really throwing me for a loop: 1. Based on 500 people a researcher calculates the 95% confidence interval for the population proportion p: 0.123
  92. physics repost

    True/False A hot object has more thermal energy than a similar cold object only because of greater kinetic energy. answer:true
  93. physics

    True/False A hot object has more thermal energy than a similar cold object only because of greater kinetic energy. answer:true
  94. Science/Health

    please check my answer thanks True or False You spleen helps in blood clotting. If imparied this will affect your blood clotting ablity. I said true
  95. financial securities

    Cat Bonds An insurance company has sold insurance to cover damage that arises from hurricanes in the South Texas area. If a hurricane occurs, the insurance company is faced with losses as it pays out claims. The magnitude of the losses will depend on many
  96. Math

    Sarah correctly answers 45 questions on her history test. There are 50 questions on the test Enter the percent of the questions sarah answered incorrectly
  97. Science 6 th grade

    Can you plz check this :0 True/False 1. Kilometers per hour describes the speed of an object. (1 point) true false * Multiple Choice 2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? (1
  98. math

    Subtract 8/9 - 7/12 write your answer as a fraction in simplest form my answers 33/108 and 11/36 Questions 2: Multiply 2/9 * 18 My answers =36/9 =4/1 =4
  99. early childhood

    if anyone has the answers to exam 00382900 Facilities and staff. I would like you to review my answers. I can't post all of the questions of i would. 1.B 2.A 3.C 4.A 5.A 6.D 7.C 8.B 9.B 10.B 11.D 12.B If any of them are wrong please let me know so i can
  100. Math

    On a multiple choice test you guess he answers to two questions. Each question has five choices. What is the probability that you both answers correct?