Questions Asked on
February 11, 2009

  1. Chemistry

    The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood. Luminol is so sensitive that it can detect blood that has been diluted 10,000

  2. Chemistry

    For the reaction shown, compute the theoretical yield of product (in grams) for each of the following initial amounts of reactants. 2Al(s) +3 Cl2(g) ---> 2 AlCl3(s) A. 2.5gAl , 2.5g Cl2 B. 7.7 g Al , 25.2 g Cl2 C. 0.240 g Al , 1.10 g Cl2

  3. Physics

    A drowsy cat spots a flowerpot that sails first up and then down past an open window. The pot was in view for a total of 0.37 s, and the top-to-bottom height of the window is 2.20 m. How high above the window top did the flowerpot go? S= ut +(1/2)at^2 S=

  4. Chemistry

    Ammonia has the formula NH3. Household ammonia is a dilute aqueous solution of NH3 . Aqueous ammonia is a base that can neutralize acids. If 18.4mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar

  5. Physics

    Multiple-Concept Example 3 provides some pertinent background for this problem. Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is

  6. physics

    a very loud train whistle has an acoustic power output of 100 W. if the sound energy spreads our spherically, what is the intensity level in dB at a distance of 100 meters from the train? I0=10^(-12) the answer is 200 m but how do i get it?

  7. chemistry

    a 16.2 L sample of CO(g) at 1.50 atm and 200.*C is combined with 15.39g of Fe2O3(s), How many moles of CO(g) are availabe for the reaction

  8. Intermediate Algebra Word Problem

    A river's current is 4mph. A boat travels 48 miles downstream in the same time it travels 24 miles upstream. Find the speed of the boat. A) What does the variable stand for? x stands for the speed of the boat. B) Write the equation. 24/x - 4 = 48/x + 4 C)

  9. Chemistry

    The density of a 22.0% by mass ethylene glycol (C2 H6 O2) solution in water is 1.03 .Find the molarity of the solution.

  10. Economics

    1. Products that would be used in calculating GDP include: a. Toys manufactured in China at a factory owned by a U.S. company b. cars manufactured in Tennessee at a factory owned by a Japanese automobile company c. plastic manufactured in Kentucky and sold

  11. statistics

    In a certain population, 1% of all individuals are carriers of a particular disease. A diagnostic test for this disease has a 90% detection rate for carriers and a 5% detection rate for non- carriers. Suppose that the diagnostic test is applied

  12. Walt Whitman/literature

    Can I get your opinion on something what is your favorite quote of Walt Whitman's please help me because there are so many that I like but I don't know which one to choose. Thanks God Bless You!!

  13. Math

    Which of these phrases best describes a polynomial? a. a decimal that is non-terminating or non-repeating b. an algebraic expression containing one or more terms c. a close-planed figure formed by three or more line segments d. a number greater than one

  14. chem

    is iron (III) carbonate a solid or (aq)?

  15. chemistry 1st year, for midterm help

    Hi, Can any1 help with theses questions. I need to solve these because there will be similar questions on the midterm for me, coming week. Btw I have tried few. 1. How many milliliters of a 15.0%, by mass solution of KOH (Aq) ( d= 1.14g/mL ) are required

  16. physics

    please help There are six books in a stack, and each book weighs 5 N. The coefficient of static friction between the books is 0.2. With what horizontal force must one push to start sliding the top five books off the bottom one? please walk me through this

  17. chemistry

    Oxygen reacts with the dipeptide glycylglycine [C4H8N2O3(s)] to form urea [CH4N2O], carbon dioxide and water: 3O2(g) + C4H8N2O3 (s)  CH4N2O (s) + 3CO2(g) + 2H2O(l) At STP, solid glycylglycine has the following thermodynamic properties: = -491.5 kJ/mol =

  18. Chemistry

    calculate the number of grams of nitrogen dioxide that are produced from 2 moles of nitric oxide 2NO(g)+Osub2(g)---->2NOsub2(g)

  19. science

    still need to know what chemical tests you can perform to distinguish the difference between a sample of iron and a sample of iron sulphide.

  20. 12th grade

    the product of 7over16, 4over3, and 1over2 is

  21. algebra

    my question is this how do you solve this equation? x=3y-1 x+2y=9 solve each system of equation by the substitution method.

  22. Pre algebra

    The Everton college store paid 1532 dollars for an order of42 calculators.The store paid 18 dollars for each scientific calculator,and tthe other all graphing calculators, cost the store 54 dollars each, How many of each calsulator was ordered?

  23. COM220

    What do you think they mean when asking How does the author A Nation Apart organize information to build his argument? Does he include any counterarguments? Why or why not? What kinds of statistics, graphs, or illustrations does the author include? In what

  24. English! please check my essay!

    Importance of Rice and IRRI The History of IRRI and IRRI’s Importance to the Rice Industry IRRI, the International Rice Research Institute is the heart of Asia’s agricultural research. Established in 1960, IRRI headquarter is located in Los Banos,

  25. physics

    Two spherical objects are separated by a distance of 2.41 x 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As

  26. US History

    In the constitution the power to regulate trade, make treaties with foreign goverment, and make law "necessary" to govern belongs to who?

  27. Intermediate Algebra

    Joe can paint a room in 6 hours while Sue can paint the same room in 5 hours. Working together, how long would it take them to paint the room? A) What does the variable stand for? x stands for the amount of hours to paint the room. B)Write the equation.

  28. algebra 2 honors

    how do you solve problems like : log3x-log5=1

  29. Last Question...

    Roman Noodles are enriched refined wheat flour and was wondering if anyone knows if this kind of pasta is considered low-glycemic complex carbohydrate.

  30. Economics

    1. The main disadvantage of using shells as money, instead of coins, would be a lack of: a. durability b. portability c. uniformity d. divisibility I think its B. portability?

  31. math

    how do you change decimals into fractions?

  32. Organic Chemistry

    How could you distinguish between cyclohexane and cyclohexene using Infrared Spectroscopy only? How could you distinguish between 1-hexene and 1-hexyne using IR only?

  33. Calculus A

    Find the derivative of this function: y=sin(cosx) Any help would be appreciated.

  34. science

    On Earth as a whole, what happens to most of the presipitation? 1 It recharges the soil moisture deflict. 2 it becomes runoff and moves o the oceans. 3 it is store in the soil as capillary oceans. 4 it is returned to the atmosphere through evaporation and

  35. English

    For the last paragraph of are essay it's war as a social disease vs. non-conformity. What would some possible solutions be for eliminating non-conformity as a social disease?

  36. English

    Where can I find examples of non-conformity that was demonstrated during any of the wars?

  37. physics.

    Multiple-Concept Example 3 provides some pertinent background for this problem. Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is

  38. Biology

    Cross a roan bull with a roan cow. I need to know the key and the punnet square

  39. biology

    The light reaction of photosynthesis is very similar to" a. the electron transport chain b. the TCA cycle c. Beta-oxidation I think the answer is A. Can someone confirm my answer

  40. Chemistry

    For the reaction shown, compute the theoretical yield of product (in grams) for each of the following initial amounts of reactants. 2Al(s) +3 Cl2(g) ---> 2 AlCl3(s) A. 2.5gAl , 2.5g Cl2 B. 7.7 g Al , 25.2 g Cl2 C. 0.240 g Al , 1.10 g Cl2

  41. Physics

    An engine has a hot reservoir of 520K and a low temperature reservoir of 330K. What is the theoretical efficiency of this engine? Answer in units of % I got 36.5% but the teacher is saying that's wrong!! Please help with calculation.

  42. biology

    If you have a gene pathway with three activities, say A, B and C, and you have a mutant where an area of the pathway is affected, what kind of experiment would allow you to distinguish if A, B or C is affected? Does it make sense to plate the mutant

  43. 6th grade

    What were the top 15 most populated countries in the year 2002........Also. what were their populations???????? Please help.....

  44. Math Integration

    Integrate: f (x)/(2x + 1) dx let f represent integrate sign let u = x, du = dx => dx = du = f (u)/(2u + 1) du = f u (2u + 1)^(-1) du = (1/2)u^2 (ln|2u + 1|) + c = (1/2)x^2 (ln|2x + 1|) + c ...what did I do wrong? The correct answer is (1/2)x - (1/4)ln|2x +

  45. algebra

    What was the combined sales revenue in march for the parts and service devision of Jacks auto service. April 11,000.00- parts 70,000.00- service March percent increase 10%-Parts 25%-service

  46. science

    The primary source of moisture for the local water supplies is 1 potential evaporation and transpiration 2 actual evaporation and transpiration 3 ground water storage 4 precipitation

  47. Social Studies

    Could someone please give me some examples of increasing revenues I tried looking it up but I can't find anything. I know I was on here an hour ago but I still need a little assistance. Thanks

  48. English - please check my essay!

    IRRI Report The History of IRRI and IRRI’s Importance to the Rice Industry IRRI, the International Rice Research Institute is the heart of Asia’s agricultural research. Established in 1960, IRRI headquarter is located in Los Banos, Philippines, and

  49. law and ethics

    what does it mean to say that communication is "privileged"?

  50. law and ethics

    The office hires an employee who is deaf, what will the employer have to do in terms of this employee's job duties to comply with the americans with disabilities act?

  51. Spanish

    Having some trouble with articles. When would I use 'los/las' and 'unos/unas' Example: Rewrite these sentences changing the words in brackets to the plural. 1. (El es un hombre) de Bariloche Ellos son unos hombre de Bariloche. Would not 'los' sound more

  52. music history

    When was mendelssohn born?

  53. english - essay fixed!! please check

    IRRI, the International Rice Research Institute is the heart of Asia’s agricultural research. Established in 1960, IRRI headquarter is located in Los Banos, Philippines, and fourteen other offices are spread throughout different countries of Asia. IRRI

  54. Physics

    A toy coat is carrying a steel weight in a swimming pool. If the steel weight falls of the boat and into the pool, does the water level of the pool rise, fall, or remain the same?

  55. English Follow Up

    For the last paragraph of are essay it's war as a social disease vs. non-conformity. Do you think that I would be better off doing war as a social disease vs. Addiction What would some possible solutions be for eliminating addiction as a social disease? Or

  56. Science

    What gas is produced when anything burns? Thanks-Sabina.

  57. Physics Plans Project (11th Grade)

    I'm doing a physics project where I have to find plans for a device and then build it and type a report demonstrating the physics behind it. However, the materials can't cost more than $75 total. I'm having trouble finding any plans, especially ones that

  58. math sos

    Soybean meal is 14%protien , cormeal is 7% protien . How many pounds of each should be mixed together to get a 280 pound mixture that is 11 % protien? How much cornmeal? How much protien?

  59. 9th grade Health

    I have to know what recommendations concerning starch in our diet, and the chemistry of starch as well. Please help?

  60. science

    What event is a direct result of evaporation and transpiration? 1 the atmosphere warms. 2 cloud cover decreases. 3 moisture enters the atmosphere. 4 moisture leaves the atmosphere.

  61. college

    the width of a rectangle is fixed at 22cm. what lengths will make the perimeter greater than 84cm.

  62. FRENCH

    Hello! I thought that I understood the passé composé well; that "être" verbs need to agree with gender and number but "avoir" verbs do not. I took a short quiz and had several questions wrong. Could you please explain this to me (as simply as possible,

  63. college

    A=1/2rh+1/2sh. solve for h.

  64. Social Studies

    What bodies of water do you pass through when sailing from Red Sea to the Black Sea

  65. English, about my essay

    Hi, thanks for your kind reply. I am following MLA format, except some parts need to be underlined ("Welcome" IRRI) -> IRRI has to be underlined, but this site doesn't have underlines, i think. My teacher told me that what I did was write, so that's ok.

  66. health

    What does it mean when you find a three-digit code highlighted in the tabular list?

  67. CACULUS

    dy/dx = (y-1)^2 cosπx There's a horizontal line with equation y=c that satisfies this differential equation. Find the value of c.

  68. french

    I am in my second year of french, and one thing that really frustrates me is the gender-agreement. Does anyone know a good way to memorize the gender for the memory-impaired, or am I going to have to order everything in plural if I ever go to France?

  69. Social studies needs your help!!

    I am in a very tight situation. I am a grade 4 social studies teacher. In my classroom, I have students of mixed ability. Some students are above grade level, some on grade level and some below grade level. The bulk of students is below grade level. What

  70. Science- Chemistry

    Could someone please explain a few things? First off, how do you change a normal compound or element and change it to an ion? And second, could you please explain the net ionic equations?

  71. chemistry

    Icebergs in the North Atlantic present hazards to shipping, causing the length of shipping routes to increase by about 30 percent during the iceberg season. Attempts to destroy icebergs include planting explosives, bombing, torpedoing, shelling, ramming,

  72. math

    f''(x) = 24x^2(x^2-1) + 6(x^2-1)^2 when is the graph of f concave upward?

  73. Social Studies (URGENT)

    Can someone give me five phrases or sentences that would have been said about witches in early modern Europe, that creates panic, hysteria and influence them to participate in the witch-hunt. Such as: - Sensitive puritans, be weary of evil women! - Witches

  74. science

    How do you diffirentiate between a sample of iron and a sample of iron sulfur by means of a chemical test

  75. important operations

    18r 4S 5T6/ -3r 2S t3=

  76. science

    How do you separate a mixture of iron and sulphur by means of a phsyical test without using a method

  77. science

    What gas is produced when flames burn?

  78. History WWI

    durring the war how did soldier broke "Stalemate", which was when both sides didn't have any ammo left or were too tired to fight ------Thanks--------

  79. algebra pizza

    what's the slope of the line (2,1);(5,3) ?

  80. french

    when i'm putting an amount of a food item (comme une douzaine d'oeufs) will the article always be "de" or "d'"? this is the same for the phrase "avoir besoin de", correct?

  81. English

    What are the common nouns in this sentence/ He was also concerned about poverty in America, some of his paintings illustrate his varied interests

  82. geography

    How many provinces are in Canada? Is Newfoundland a province or part of Quebec?

  83. 11th grade

    tan^2x=tanx+2

  84. 4thngrade

    How would you write a metaphor sentence using "the sounds of nighttime"?

  85. chemistry

    Calculate the mass of the solid you must measure out to prepare 100 mL of 0.025 M CuSO4. Note that this salt is a hydrate, so its formula is CuSO4⋅5H2O. You must include the waters of hydration when calculating the formula weights. Would the following

  86. To MAnda - college

    I've removed your post with the complex assignment and references to information unavailable to us. Please repost when you've formulated some answers and explained the unknown references.

  87. biology

    Which of the following is NOT a function of the TCA cycle: a. Provide carbon skeletons for biosysthesis b. Provide electron to the electron transport chain in the form of NADH c. make ATP d. Break down pyruvate. I know both a and c are the function of TCA

  88. 10th grade Chemistry

    A chemial test to distinguish between iron(Fe) and iron sulphide(FeS)..without using a magnet

  89. cars/fuel efficiency (chem)

    2.Which car would you recommend for a person who travels only 5 miles to work each day? How would I figure this out? Like... something about highway mileage?

  90. Quick question...

    Are Roman Noodles considered refined pasta?

  91. health

    What causes muscles to twitch?

  92. chemistry

    Ca(ClO3)2 + KCl --> CaCl2 + 3O2 + KCl Mass of test tube = 7.918g Mass of KCl/Ca(ClO3)2 mixture + tube = 19.164g Mass of KCl/CaCl2 residue + tube = 18.635g What is the weight % of Ca from the Ca(ClO3)2 impurity in the original mixture?

  93. Chemistry

    Chemistry - Danielle , Wednesday, February 11, 2009 at 7:24pm The density of a 22.0% by mass ethylene glycol (C2H6O2) solution in water is 1.03 g/mL. Find the molarity of the solution. Answer in M

  94. Algebra

    The level of thorium in a sample decreases by a factor of one-half every 2 million years. A meteorite is discovered to have only 8.6% of its original thorium remaining. How old is the meteorite?

  95. Chemistry

    The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood. Luminol is so sensitive that it can detect blood that has been diluted 10,000

  96. Astronomy

    Two bodies with equal masses orbit the Sun in a circular orbit. If the radii of the two orbits are the same then following is true: a) The orbital period of the two bodies is the same because their masses are the same. b) Their orbital period of the two

  97. trig

    how do i get the degree for (tan+1)(tanx-2)=0 in the interval of 0 is less that or equal to x and x is less then or equal to 360

  98. Sociology

    Can you start me off with some examples of illusions of unanimity for non-smokers then I will post the other ones that I come up with to see if they are right please.

  99. algebra

    what's the slope of the line (9,2);(3,-1) ?

  100. I NEED HELP AND FAST!

    can anyone help me on finding slopes of a line?

  101. english 12

    why does the gaudian sylph Ariel warn Belinda?

  102. one more question1

    can anyone please help me with understanding how to graph equations such as 2x-3y=9, 6x-5y+20=0, -2x=2y +5, and y=-2. Thnx!

  103. Chemistry

    Sorry about that The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood. Luminol is so sensitive that it can detect blood that has been

  104. physics. Can you check my answer?

    Two spherical objects are separated by a distance of 2.41 x 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As

  105. Math

    (a+2)(3a-1) how do you solve this??????????????

  106. Social Studies

    Since political parties are not mentioned in the Constitution, why did they develop se quickly in the new nation?

  107. MATH

    HOW DO I CALULATE THE NUMBERS OF MILES IT TAKES TO GET FROM ALBUQUERQUE, NM TO CHEYENNE, WY AT AN AVERAGE SPEED OF 55 MILES PER HOUR?

  108. Math

    Factorise as far as possible into Prime Factors: 5x^8 - 80y^4

  109. Science

    Susan Mont"gum"ery Williams is the Guinness Record Holder of the Worlds largest gum bubble. How big was it?

  110. AED

    I need help find website for these... that list signs to look for when children and adolescents are being abused, using drugs, and have suicidal tendencies.

  111. Naural Science

    My science teacher asked me to write a paragraph. can you please explain to me what processes take place before we receive the suns energy. it's hard for me o understand if it's not presented in the form of a diagram.

  112. algebra

    can anyone please help me with understanding how to graph equations such as 2x-3y=9? thanx i appreciate it!

  113. chemistry

    . Consider a non-ideal gas with the equation of state: where b is a constant. i) Derive expressions for: (P/T)V and (T/V)P ii) For a constant temperature process involving this non-ideal gas, show that (E/V)T=0 (HINT: Start with an

  114. ap world history

    Discuss cultyral sharing,influence, and legacies among the people of the americas.give two examples. i reserched the topic and all i got is information i already have in my notes please help helpless in ap world history

  115. health

    what does flouride do to your teeth?

  116. chemistry

    In the fifth reaction of Glycolosis, G3P dehydrogenase converts glyceraldehydes-3-phosphate into glycerate-1,3-bisphosphate. In order to make the reaction spontaneous at biological conditions it must be coupled to the reduction of NAD+. a) DG° for the

  117. Science

    what is acceleration that is 9.8 meters/sec/sec _e_v_t_

  118. chemistry

    describe how to prepare laboratory test Co2 through a dry sample?

  119. chemistry

    (i) Explain why the freshman criterion for sponteneity: G=H-TS < 0 is just a statement of the second law of thermodynamics (that the entropy of the universe always increases). Now apply this concept to some ice cubes sitting in a mojito, where the

  120. To: Computer -- Cultural Diversity

    I've removed your post with the complex assigment about subordinate groups. Please repost it and tell us what you've already done on this assignment and how we can help you complete it.

  121. chemistry

    We have 1 mol of N2 gas that is heated at constant pressure from 300K to 5770K on the surface of the sun. i) Find H and S given that P for nitrogen is (25.7 + 0.0130T) J/mol-K. ii) Now, redo your calculation assuming that the second T-dependent term

  122. Proofread 6-page Essay Due Tomorrow?

    I realize this is very last minute. I wrote a 6-page history paper on the topic of civil rights and I want someone to read it over before 3pm tomorrow, if that's possible. thanks!

  123. chemistry

    Nicotine is not only bad for you (ahem!), but it also acts as a base in aqueous solution: Kb = 7x10-7 at 298K. i) Find G per mol of nicotine acting as a base in aqueous solution at 298K. ii) Find the pH of the solution if the initial [nicotine] = 0.80

  124. nutrition

    If you have ever poured oil into a glass of water, you have seen that these two substances do not mix. Knowing this, how do lipids move through the body so they can be digested or absorbed? How are lipids stored in the body?

  125. 5th grade

    why do we name geometric elements

  126. college - Advertising

    Hi there, What is the criticisms of advertising? Any sites that talk about the criticisms of advertising?

  127. Intermediate Algebra Simplify

    1/a + 1/c / a^2 - c^2 / ac I am kinda lost on this one. I have to simplify. any help?

  128. Social Studies

    Could you please give me a link to facts on how to increase state jobs and money, and if you have any facts of your own you may write them also. Thanks please hurry because I'm going to go to sleep soon!

  129. Speech

    What are two emotions that cause the tension leading to stage fright?

  130. Chemistry

    What causes cycloalkanes to have two less hydrogen atoms than similar alkanes that are open chain ones?

  131. human services

    What would you say are the two types of evaluation in human services and what would be their pros and cons of each evaluation.

  132. Chemistry

    What is the three dimensional structure of methane? Why?

  133. com220

    Introduction and conclusion on cohabitating before marriage

  134. Chemistry

    Name an isomer of pentane (that is not cyclic) and write down its structure.

  135. Chemistry

    Name one structural and one chemical difference between acetylene and ethylene. Give reasons.

  136. Chemistry

    What is the formula of 1,3-butadiene?

  137. physics

    please show me how to do this in steps. A track star in the long jump goes into the jump at 12 m/s and launches herself at 20.0degrees above the horizontal. What is the magnitude of her horizontal displacement? (assume no air resistance and that Ay= -g =

  138. Algebra S.O.S

    I've been working on this a while, and I thought I got it right...until I got to step two. When I tried "veryfying my solution point" The lines didn't intersect at (4,2). I don't know, it's probably a silly little mistake on my part, but I can't get it

  139. Foreign Language

    I have to make an ethnic dish to share with my class. The dish can be from any culture. I want to pick a country where the food is the easiest to make, so what country's foods are the easiest to make? Can you reccomend a recipe?

  140. Algebra

    Hi. I don't understand how to graph this function. would i make a table of values, or just use the equation, or how would i go about doing this? f(x)=x^2-5 on the domain of -3

  141. intergrated science

    please give me 10 other examples of measurement and thier S.I unit

  142. Sociology Ms. Sue

    What does the illusion of morality mean? I understand that morality means the concern with the distinction between good and evil or right and wrong; right or good conduct How does it affect smokers?

  143. Algebra

    Suppose f(x)=-x^2+1, and the domain of the funtion is the real numbers. Give an example fo a number that is nto in the range of f.

  144. math

    use the strategy for evaluating a^-m/n EVALUATE: 25^-3/2 I'm not for sure what the strategy for evaluating a^-m/n is. Can anyone help?!

  145. Sociology Ms. Sue

    How would self-censorship affect smokers? Would not being allowed to smoke in a resturant be one? All commerical ads directed towards the smokers? I don't know if these would be right. What would be some other reasons

  146. hca 210

    Post your response to the following: What is one strength you see in th current U.S. health care system? What is one weakness you see? List and describe one of the challenges facing the U.S. health care system.

  147. math

    A total of tickets were sold for the school play. The number of student tickets sold was two times the number of adult tickets sold . How many adult tickets were sold?

  148. his

    How could you tell if the a Historical source is tainted with bias of a specitic agenda?

  149. Integration

    The velocity v(t) = x'(t) at time t of an object moving along the x axis is given, along with the initial position x(0) of the object. In each case, find: 5) x'(t) = 1/((2t + 1)^(1/2)); x(0) = 0 a) the position x(t) at time t I found that x(t) = (2t +

  150. Sociology

    What does it mean by shared stereotypes? I know that stereotype is like an image that has a certain meaning. How would that relate to smokers? I don't know but would that be like commericals that are related to smokers or like others that smoke for the

  151. To Kathy -- Medical

    I've removed your post because 1. you refer to unspecified online articles 2. you've given us no idea of your thinking about this topic. Please repost when you tell us what the articles were about and present your answers.

  152. medical

    When are abbreviation acceptable? who can use them and why?

  153. algebra

    A cell divides into two identical copies every 4 minutes. How many cells will exist after 5 hours?

  154. law and ethics

    Who determines the amount of and kind of diagnostic tests allowed for a medical condition?

  155. English Language

    What does it mean to resent the class system among students? (I think it means to hate the class system among students but even with that definition I still don't understand what it means)

  156. Parie

    um i need help with grids and decimals which decimal is greater 0.3 or 0.09

  157. math

    what two numbers have a quotient of 9 and a difference of 56? ---one of the numbers has to be 63

  158. unit

    is cm^3 and cc and mL all the same??

  159. help....

    what happen if anyone is hit by a pickleball's ball in an eye? does that eye go back???? plz answer....plz!!!!