1. chemistry

    true or false: when water which is used to dissolve glucose is heated from 25 degrees to 80 degrees the solubility of the glucose is increased.

    asked by tonya on August 3, 2010
  2. math 8

    Martin graphed the lines for a system of equations. His graph resulted in 2 lines with different slopes. Which of the following is true about this graph?

    asked by rober on July 1, 2011
  3. Physics

    Center of mass of a body coincides with its center of gravity irrespective of its mass and size 1. True 2.False

    asked by SAGAR on July 21, 2016
  4. Math

    Mr.Jensen is buying 2 dozen donuts for $10.98. True or False. The expression 8.5 x 2/10.98 could be used to represent the cost of 8.5 dozen donuts.

    asked by Ashley on February 16, 2011
  5. Basic english

    Which of the following statements is not true? A. "Whom" can serve as the object of a preposition. B. "Whom" is an object pronoun. C. "Who" and "whom" are personal pronouns. D. "Who" is a subject pronoun.

    asked by Anonymous on November 16, 2011
  6. computer science

    In form view you can view a forms records but cannot change the layout or design of the form true or false

    asked by Anonymous on September 26, 2013
  7. geometry

    if a scale factor of four is used, the points in the image will be eight times as far from the origin as at he pre-image points true or false

    asked by Barb on June 28, 2013
  8. Statistics

    True or False If a sample of at least 30 scores is randomly selected from a normal population, the sample mean will be equal to the population mean.

    asked by Lyndyc on December 9, 2013
  9. Chemistry

    Hello everyone I need your help at once. How many grams of CO2 are needed to neutralize a 5 L tank of water with a pH of 11.5? my answer is around 220 grams of CO2. is that true or not?

    asked by Ramtin on April 13, 2014
  10. Math

    True or false, A solution of a system of linear equations is an ordered pair that satisfies one of the equations in the system?

    asked by Megan Ruff on March 1, 2011
  11. calculus

    test the series for convergence or divergence using the alternating series test the sum from n=1 to infinity of (-1)^n/(3n+1) I said it converges, is this true?

    asked by laura on February 28, 2008
  12. Calculus

    A function f(x) is continuous for all x and has a local minimum at (1,8). Which must be true? A. f'(1)=0 B. f' exists at x=1 C. The graph is concave up at x=1 D. f'(x) is less than 0 if x is less than 1, f'(x) is greater than 0 if x is greater than 1 E.

    asked by Anonymous on March 14, 2015
  13. statistics

    Suppose the temperature of a cup of coffee is normally distributed with a mean of 142 degress F. If a cup of coffee has a z score of 1.5, which of the following is true?

    asked by PLZ HELP on February 19, 2016
  14. Grammar

    When a sentence has a prepositional phrase, it is best to ignore the prepositional phrase when determining what the subject is. A) True B) False Answer is B

    asked by Marie on November 28, 2012
  15. Algebra

    I don't get how you would know which way to shade the inequality when it's true or false. For example the inequality 2x+3y> 12 When I solve it it's y>-2/3x+4 But when I graph the line how would I know which side to shade?

    asked by Emma on December 12, 2012
  16. Calculus check

    A function f(x) is continuous for all x and has a local minimum at (1,8). Which must be true? A. f'(1)=0 B. f' exists at x=1 C. The graph is concave up at x=1 D. f'(x) is less than 0 if x is less than 1, f'(x) is greater than 0 if x is greater than 1 E.

    asked by Anonymous on March 15, 2015
  17. Calculus (limits)

    Let f be defined as follows, where a does not = 0, f(x) = {(x^2 - 2ax + a^2) / (x-a), if x does not = a 5, if x = a Which of the following are true about f? I. lim f(x) exists as x approaches a II. f(a) exists III. f(x) is continuous at x = a. A. None B.

    asked by Cleewef on February 4, 2018
  18. calculus

    test the series for convergence or divergence using the alternating series test the sum from n=1 to infinity of (-1)^n/(3n+1) I said it converges, is this true?

    asked by sarah on February 27, 2008
  19. Math

    True or False. If possible kindly explain why so that I can understand it. Thanks much. 1. f(x) = 1^x is not an exponential function. 2. Every exponential function is strictly increasing.

    asked by Millie on February 4, 2015
  20. Calculus

    Determine whether the statement is true or false. If it is false, give an example for which the statement fails. a) if f has a relative maximum at x0, then f(x0) is the largest value that f(x) can have

    asked by Anonymous on December 21, 2015
  21. pre calc

    A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2 is a factor of n2 + 7n

    asked by allexelle on October 9, 2015
  22. geometry

    From the given true statements, make a valid conclusion. If the dogs get out of the yard, the catcher will take them to the pound. The dogs got out of the yard.

    asked by bob on October 3, 2007
  23. chemistry

    Given the chemcal equation:2 Ca+O2>2 CaO,if 2 moles of CaO are formed in this reaction,then 2 moles of O2 must have reacted. True or False?

    asked by Kimberly on April 15, 2013
  24. Math

    When you add the same number to both sides of an inequality, is the inequality still true? Explain how you know that your conjecture holds for subtracting the same number.

    asked by Anonymous on October 2, 2017
  25. Science

    Which statement is true about the products of cellular respiration? They contain oxygen. They contain glucose. They become the products of photosynthesis. They become the reactants of photosynthesis.***

    asked by Will on February 7, 2019
  26. Math

    A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn:   2 is a factor of n2 + 7n

    asked by Anonymous on March 4, 2016
  27. pre calc

    A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2 is a factor of n2 + 7n

    asked by allexelle on October 10, 2015
  28. calculas

    if the length is decreasing at a rate of 2 in./min. while width is increasing at a rate of 2 in./min., what must be true about area of the rectangle

    asked by Anonymous on December 7, 2010
  29. C++

    True or false: A function call statement transfers control of the program to the last statement in the body of a function.

    asked by Bob on November 8, 2013
  30. pre-calc

    A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn:   2 is a factor of n^2 + 7n

    asked by cam on May 4, 2017
  31. math

    If f is a function such that the limit as x approaches a of the quotient of the quantity f of x minus f of a and the quantity x minus a equals 7, then which of the following statements must be true?

    asked by Anonymous on November 26, 2016
  32. chemistry

    Given the chemcal equation:2 Ca+O2>2 CaO,if 2 moles of CaO are formed in this reaction,then 2 moles of O2 must have reacted. True or False?

    asked by Kimberly on April 15, 2013
  33. biology

    Define and distinguish between self-fertilization, cross-fertilization, true-breeding organisms, hybrids, the P generation, the F1 generation, and the F2

    asked by Anonymous on August 8, 2011
  34. algebra 1 help

    5) give one solution to the inequality 12x-3x+11

    asked by hips on April 25, 2013
  35. Physics

    True/false. Light reflected from a glass surface is polarized along the plane perpendicular to the glass surface

    asked by Tiffany on December 16, 2009
  36. science

    True or False: If you rub a balloon across your shirt several times on a dry day, the balloon will stick to your shirt.

    asked by Kyle on November 16, 2018
  37. Animal Farm (civics)

    True o False Both times that the windmill was destroyed was actually because of an earthquake. i known 1 time was caused by an earthquake by i forgot the other time

    asked by Anonymous on October 30, 2013
  38. chemistry

    Given the chemcal equation:2 Ca+O2>2 CaO,if 2 moles of CaO are formed in this reaction,then 2 moles of O2 must have reacted. True or False?

    asked by Kimberly on April 15, 2013
  39. english

    is true a noun? if so is it an abstract noun?

    asked by jason on September 10, 2007
  40. Geometry

    True or False: If x>4, then x>0 ? If false please explain.

    asked by John on September 26, 2013
  41. Statistics

    The complement of P(B | A) is 1 - P(B | A). Is it also true that 1 - P(B | A) = P(B' | A), where B' means the complement of B?

    asked by John on June 13, 2014
  42. Math

    Which of the following is a true statement? A. -9 > -4 B. | -10 | > |2| C. | -3| < |1| D. 6< - 12 Compare using , or = -2 ----- -4 A. < B.> C. = Compare using , or = -| 2-5| ----- (8 – 11) A. < B. > C = PLEASE HELP!!!

    asked by Priscilla on April 20, 2015
  43. @damon physics

    I was wondering if you can help me with these two questions. Thank you Question # 1 A horse is pulling a heavy cart up a hill. The cart has 400 kg of mass inside it. The horse is pulling the cart with 10 N of force. What is the magnitude of the force on

    asked by Teal on April 22, 2012
  44. Cultural Anthropology 101

    Theocracies are: (Points : 1) 9A)****determined by the religious beliefs of the society. based on the accumulation of wealth by individuals. a group of elected officials. are sanctioned by Big Men. 2. Chiefs within chiefdoms generally gained their

    asked by mandy on December 16, 2012
  45. Introduction to Business Environment Chapter 2

    The world's population is growing more slowly than expected, and there are some industrial countries in which growth might be so slow that there will be too many old people and too few young people to support them. (Points : 1) True False 2. In a free

    asked by David on March 10, 2013
  46. History

    1. Why did settlers find the land grants in Texas so appealing? Select all that apply. A) Settlers didn’t have to pay taxes for six years. B) The price of land was cheap compared to other places.** C)Land grants ensured the settlers’ success in

    asked by HelpingBudxyツ on October 16, 2018
  47. English Essay REDONE

    You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must describe one

    asked by Camilla on July 9, 2014
  48. Chemistry

    In our text book, the formula for finding the formal charge of an element in a compound is c(sub f) = X - (Y + Z/2) where x = the number of valence electrons y= the number of unshared electrons owned by the atom z= the number of bonding electrons shared by

    asked by Alexa on December 6, 2006
  49. physics

    Chinook salmon are able to move through water especially fast by jumping out of the water periodically. This behavior is called porpoising. Suppose a salmon swimming in still water jumps out of the water with velocity 6.41 m/s at 44.1° above the

    asked by sam on September 1, 2013
  50. Physics

    The existence of the planet Pluto was proposed based on irregularities in Neptune's orbit. Pluto was subsequently discovered near its predicted position. But it now appears that the discovery was fortuitous, since Pluto is small and the irregularities in

    asked by Karina on July 6, 2015
  51. Law

    It is __________ private-sector correctional providers, especially of prison facilities, are more effective than public-sector providers. A. doubtful that B. untrue that C. unknown at this time whether D. true that is it D

    asked by Amy on June 25, 2014
  52. geometry

    I need help on this question. Write the contrapositive,converse,and inverse of the statement.Determine if its true or false.If its false give a coynterexample. If I live in Redlands,then I live in California.

    asked by Damon on September 18, 2012
  53. Science

    A new plant, growing from a single leaf, is an example of sexual reproduction. True or False? Thanks. Sexual reproduction involves two sexes. Does that answer your question? I hope this helps. Thanks for asking.

    asked by Marry on May 18, 2007
  54. health

    Which of the following statements about schizophrenia is true? a. Schizophrenia can be cured. b. Schizophrenia is a biological disease of the brain. c. Schizophrenia is caused by an environmental factor. d. Symptoms most commonly appear in early childhood.

    asked by leslie on January 25, 2012
  55. English

    Sorry, but the same sentences have been sent to you twice, or even three times!! I just have a question to you. 1) Amnesty fights for the release of any prisoner who opposes violence. TRUE. I thought Amnesty does not fight only for prisoners who oppose

    asked by Matthew on April 15, 2012
  56. chemistry

    What is the oxidizing agent in the following reaction? Sn(s) + 2HCl(aq) → SnCl2(aq) + H2(aq) HCl H2 Sn SnCl2 . Question 2 The following is an oxidation-reduction reaction: H2CO3(aq) → CO2(g) + H2O(l) True False

    asked by larlee on October 2, 2017
  57. Geography

    Infant mortality is the same as child mortality. True or False false which country has the lowest life expectancy? A. USA B. Japan C. Russia D. Brazil E. Spain C?

    asked by Geo on November 5, 2015
  58. physics

    true or false . refraction always involves a change in the speed and direction of a wave wat is required in order for diffraction to occur? wat causes wave interference?

    asked by ana on April 6, 2012
  59. math

    you are given two equations which are both true , and yiu are asked to solve for both x and y. you plane to solve this set of eqiutions by substituting part of one equation into the other so you end up with an equation that contains only x's or y's. the

    asked by lee on July 5, 2010
  60. Math

    The line x=c is a veritcal asymptote of the graph of the function f Which of the following statements cannot be true? A. Lim as x approaches c from the left f(x)= infinity B. lim as x apporaches infinity f(x)=c C. f(c) is undefined D. f is continous at x=c

    asked by Anonymous on September 3, 2018
  61. math

    Peter uses the equation mc015-1.jpg to model the number of miles that he has walked in x hours. Which statement is true about the proportional relationship that is modeled by Peter’s equation?

    asked by Tish on June 23, 2017
  62. accounting

    True or false ? The columns of the employee earnings record consist of the amount columns in a payroll register and accumulated earnings column? Can you help me answer this question ? thank you.

    asked by mike on March 15, 2011
  63. HISTORY

    True False Following the conclusion of the war, Lincoln’s second term in office was much more peaceful. Not sure about this question, because Lincoln talked about peace in his speech but his term was so short because he was shot.

    asked by Anonymous on December 4, 2014
  64. Chemistry

    The question asks me to find the absolute error using the true value=.1025M, and the mean=.1077 The answer I got was .0052...how would I convert this to 4 significant figures? (since the values have 4 significant figures)

    asked by kristine on September 28, 2013
  65. math

    The inequality 10x + 20y > 500 models all of the combinations of scores of 10 and 20 points that will give a total greater than 500 points in a game. What is not true about the values for x and y?

    asked by Anonymous on February 27, 2014
  66. Bridge Math

    The inequality 10x + 20y > 500 models all of the combinations of scores of 10 and 20 points that will give a total greater than 500 points in a game. What is not true about the values for x and y?

    asked by Taylor on May 6, 2013
  67. Social Studies

    Which is not true of both city and county government in Georgia? a. both can collect taxes b. both can become municipalities*** c. both provide public health services d. both provide police and fire services

    asked by Anonymous on January 29, 2018
  68. Grammar

    When a the subject of sentence has 2 or more nouns or pronouns connected by “or” or “nor,” the verb must agree with the noun or pronoun that appears closest to the verb in the sentence. A) True B) False I answered A

    asked by Marie on November 28, 2012
  69. Trig/Precal

    An airplane flies on a compass heading of 90° at 310 mph. The wind affecting the plane is blowing from 332° at 40 mph. What is the true course and ground speed of the airplane?

    asked by Lauren T on July 6, 2012
  70. Economics

    Q1) whether the following statement is true or not? some reasons plz~! "a monopolist produced 1 million units last year. If a $10 per unit tax is imposed, the profits of the monopolist will decrease by $10 million"

    asked by ZIO on April 21, 2008
  71. Chemistry

    is this true or false? 5) Density has units of grams per cubic centimeter. It may have units of g/cc. But the unit used is strictly up to the individual calculating. It may be in kg/cubic meter or any of a number of other conversions.

    asked by Bryan on February 1, 2007
  72. Statistic/Psychology

    Joe had a score of 72 on the Counseling Aptitude Scale, and the standard error of measurement of the scale is 3. Where would we expect Tom's true score to fall 99.5 percent of the time? a.71 to 73 b. 69 to 75 c. 66 to 78 d. 63 to 81

    asked by Crystal on July 27, 2013
  73. physics

    Two identical cars are traveling at the same speed. One is heading due east and the other due north, as the drawing show. What is true regarding the kinetic energies and momenta of the cars?

    asked by jo on October 23, 2010
  74. English

    I have to explain why Ivan's musings over winning the lottery ticket do or do not reveal his true character and feelings towards others. But I just can't seem to find the examples. This is from the short story, "The Lottery Ticket".

    asked by AL 87 on March 3, 2010
  75. CORRECTIONAL PRACTICE AND POLICY

    It is __________ private-sector correctional providers, especially of prison facilities, are more effective than public-sector providers. A. doubtful that B. untrue that C. unknown at this time whether D. true that I think it's B Or A

    asked by Sonoko on September 8, 2014
  76. Physics

    The sun radiates energy at the rate of 6.5 x 10 to the power of 7 w/m squared.Assuming that the sun radiates as a black body(which approximate true), find its surface temperature.

    asked by Anonymous on December 3, 2013
  77. Statistic/Psychology

    Joe had a score of 72 on the Counseling Aptitude Scale, and the standard error of measurement of the scale is 3. Where would we expect Tom's true score to fall 99.5 percent of the time? a.71 to 73 b. 69 to 75 c. 66 to 78 d. 63 to 81

    asked by Crystal on July 26, 2013
  78. ACC 205

    The cash balance in a company's general ledger and the bank's balance on the bank statement will generally be different because of the time lag in recording transactions. True or False

    asked by kim on June 1, 2012
  79. test and measures

    If the true score variance is equal to 10 and error variance is equal to 2, what is our estimate of reliability? [Hint: Think about the conclusions that we draw from the assumptions of classical test theory]

    asked by sharon on June 5, 2014
  80. Modern world studies

    Wich of the following is true of social classes .a. They are mainly based on gender.b.People in most society's cannot improve their status.c.They are mainly based on age.d.They can improve their satus by getting a good education.

    asked by Bro on December 12, 2018
  81. Math vectors

    Verify using an example that a(b+c) is not equal to ab+ac. (This means that addition does not distribute over the dot product.) My solution: is this correct? a(b+c)= ab+ac is ALWAYS true for whatever numbers you substitute let a = 16 b = 3 and c = 5 so LHE

    asked by Raymond on February 27, 2015
  82. Physics

    Two identical cars are traveling at the same speed. One is heading due east and the other due north, as the drawing show. What is true regarding the kinetic energies and momenta of the cars?

    asked by david on October 24, 2010
  83. Science, Chemistry

    A 1050.0 mL solution of NaOH is neutralized by 0.25 L of 2.00M Nitric Acid using Bromothymol Blue as an indicator. The concentration of the NaOH solution is 0.48M. True or False

    asked by Anonymous on January 9, 2017
  84. Algebra

    w=Cr^-2 Suppose that an object is 100 pounds when it is at sea level. Find the value of C that makes the equation true. (Sea level is 3,963 miles from the center of the earth.)

    asked by Marysvoice on January 28, 2008
  85. English

    1. A __________ is a statement that seems contradictory but that is nevertheless true. A. puzzle B. definition C. tribulation D. paradox is it D 2. In Barbara Ehrenreich’s essay titled “The Cult of Busyness,” the word “acumen” means: A. dull. B.

    asked by Amy on June 19, 2013
  86. American History

    Which of the following was true of Nixon's presidency? A. It shifted responsibility for welfare programs from the states to the federal government. B. It resisted affirmative-action legislation. C. It tried to overthrow Johnson's Great Society agenda. D.

    asked by Abby on June 6, 2012
  87. English

    In Catch-22, The Great Loyalty Oath Crusade is one example of The need to show true patriotism in war. The importance of being able to trust companions. The ability of spies to remain hidden despite careful efforts to unmask them. The desire of officers to

    asked by Anonymous on November 16, 2011
  88. Spanish

    Please check my answers... 1.) "He is playing cards" is said like this: él está jugando a las cartas. 2.) Is this how you say "My friend plays soccer": Mi cuates juega al fútbol. 3.) Is this how you say "they are in a hurry": que tienen prisa. 4.) True

    asked by Cassie - Please Help. on May 9, 2013
  89. Psy 230

    The text for this class is strange to read and about clear as mud. The question that I am needing help with is this one: Rotter's social-learning theory state that over time, a behavior and a reinforcer (a consequence) become so closely associated that a

    asked by Marie on October 21, 2012
  90. math

    IS THERE ANYONE OUT THERE THAT MAY BE ALBE TO HELP ME PLEASE! Place absolute value bars in the proper location on the left side of the expression to make the statement true. Jean deposited a check for $625 wrote two for $68.74 and $29.95 and used her debit

    asked by brenda on September 15, 2008
  91. economics

    Suppose that Congress enacts a lump-sum tax cut of $750 billion. The marginal propensity to consume is equal to .075. Assuming that Ricardian equivalence holds true, what is the effect on equilibrium real GDP? On saving?

    asked by Tina on July 9, 2011
  92. Psy 230

    The text for this class is strange to read and about clear as mud. The question that I am needing help with is this one: Rotter's social-learning theory state that over time, a behavior and a reinforcer (a consequence) become so closely associated that a

    asked by Marie on October 21, 2012
  93. Scientific Method

    Put the following in the correct order. Report results Determine if hypothesis is true Do background research Construct a hypothesis Collect data Analyze results and draw conclusions Design and implement an experiment State the problem / ask questions

    asked by Please Help on September 16, 2014
  94. Biology

    Put the following in the correct order. Report results Determine if hypothesis is true Do background research Construct a hypothesis Collect data Analyze results and draw conclusions Design and implement an experiment State the problem / ask questions

    asked by Please help on September 16, 2014
  95. Proofread!!

    I am writing a persuasive paper and have completed the first two paragraphs please proofread and suggest anything that could make it better: It is your last year in high school and it is time to make the big decision. Should a person go to college and be

    asked by Britney on March 25, 2008
  96. Physics

    Chinook salmon are able to move through water especially fast by jumping out of the water periodically. This behavior is called porpoising. Suppose a salmon swimming in still water jumps out of the water with velocity 6.41 m/s at 44.1° above the

    asked by Blake on January 21, 2015
  97. Grammar and Composition

    There are some people in this world that you can’t live without, and then there are some other people who you just can’t bear to live with. That second category is the one that I have to deal with all day, everyday. Sure she’s a few years younger

    asked by y912f on November 11, 2009
  98. Grammar and Composition

    There are some people in this world that you can’t live without, and then there are some other people who you just can’t bear to live with. That second category is the one that I have to deal with all day, everyday. Sure she’s a few years younger

    asked by y912f on November 12, 2009
  99. science

    Hi! Please help as soon as possible! This is my science connections academy test that I took but it restarted. I really don't want to do it again! THANK YOU! 1. Box A is hotter than Box B. After the heat is transferred, they become the same temperature.

    asked by PLEASE HELP SOON! on May 1, 2017
  100. science

    Hi! Please help as soon as possible! This is my science connections academy test that I took but it restarted. I really don't want to do it again! THANK YOU! 1. Box A is hotter than Box B. After the heat is transferred, they become the same temperature.

    asked by PLEASE HELP SOON! on May 1, 2017