1. science/health

    I need help with a few questions. Please let me know if my answers are correct or not and thank you. 1- The process of breaking a complex substance down into smaller components is called? A- neutralization B- metabolism C- anabolism D- catabolism Answer- C

    asked by Anonymous on April 30, 2010
  2. Health

    I need help with a few questions. Please let me know if my answers are correct or not and thank you. 1- The process of breaking a complex substance down into smaller components is called? A- neutralization B- metabolism C- anabolism D- catabolism Answer- C

    asked by Anonymous on April 30, 2010
  3. Science

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous on November 11, 2013
  4. Science

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous on November 10, 2013
  5. Science

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous on November 11, 2013
  6. Science

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous on November 11, 2013
  7. Science

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous on November 10, 2013
  8. Evolution

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous on November 10, 2013
  9. English

    Could you please tell me which of the following phrases are possible? Thank you. 1) Hamlet wants to ____ ______; Hamlet wants to take revenge Hamlet wants to avenge his father Hamlet wants to revenge himself 2) Hamlet is sure that Claudius is the murderer

    asked by Henry2 on January 6, 2012
  10. psychology

    Sperm cells carrying the Y chromosome will A always result in the conception of a female baby B will result in the conception of twins more often than those carrying an X chromosome C typically result in children with brown eyes D usually carry less

    asked by ourania on December 16, 2008
  11. chem

    Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

    asked by sabrina: This is how the question is written. on November 28, 2012
  12. CHEMISTRY

    Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

    asked by sabrina on November 27, 2012
  13. Scienctific Method

    Imagine that you are an Orthodox Jewish Rabbi and someone hands you a bag of meat. Upon inspection, you conclude the bag contains pork. However, your friend insists that the bag actually contains a delicious meal of chicken. What are some specific

    asked by Chris on May 28, 2007
  14. Chemistry

    Determine the molarity of a 15.0 % by mass Hydrogen Peroxide solution. The density of Hydrogen Peroxide is 1.054 g/mL. The 15.0% by mass can be broken apart into 15.0 g Hydrogen Peroxide and 100.0 g solution. Use the density of Hydrogen Peroxide solution

    asked by Jenna on February 1, 2015
  15. Health

    Why does the blood returning to the heart have very little oxygen in it? A. The heart is not pumping oxygen fast enough . B. The cells throughout the body use the oxygen .

    asked by Help pls quick on March 14, 2016
  16. To "rachel" or "jen" or whoever

    Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even better subject heading would

    asked by Writeacher on June 7, 2007
  17. social studies

    1. What were the Townshend Acts? A. The British put taxes on imported goods such as tea and glass. *** B. The British put taxes on hotels and other lodging accommodations. C. The British put taxes on newspapers, magazines, and official licenses. D. The

    asked by honey on October 24, 2018
  18. language arts

    read the following lines of dialogue from a coversation johnny has with mrs. bessie, the lytes servant. "what happened to that Cousin Sewall?" "Gone to Worcester. Joined up with the Minute Men." "But hes too fat and.." "Soft? No. From now on nobodys too

    asked by ash on January 6, 2015
  19. Chemistry Dr. Bob

    I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to hydrometer used) sugar solution 1 :

    asked by Jennie on April 30, 2015
  20. Chemistry

    I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to hydrometer used) sugar solution 1 :

    asked by Jennie on April 30, 2015
  21. Chemistry

    I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to hydrometer used) sugar solution 1 :

    asked by Jennie on April 30, 2015
  22. Biology

    Multicellular organisms use a variety of communication methods to coordinate cell function. Choose ONE of the following examples below and describe the cell-to-cell communication that occurs, and then describe the types of responses that result from this

    asked by nan on March 10, 2016
  23. Biology

    Multicellular organisms use a variety of communication methods to coordinate cell function. Choose ONE of the following examples below and describe the cell-to-cell communication that occurs, and then describe the types of responses that result from this

    asked by nan on March 4, 2016
  24. Algebra HELP

    Can someone check my answers? Solve for m: m + 6 = 3(2m - 4) a.4 b.-6/5 c.18/5 d.2 answer: c. 18/5 Solve the equation and check your solution: 3(x + 6) = 18 + 3x a. -6 b. 0 c. all real numbers d. no solution answer: b. 0 Solve the equation and check your

    asked by Cheryl on February 18, 2011
  25. English

    People use pockets when they eat Brussels waffles. ---------- Is this sentence grammatical? Is the use of 'pockets' here grammatical? English - Writeacher, Saturday, June 28, 2014 at 10:38am Do you mean they put the food (in this case, waffles) in the

    asked by rfvv on June 29, 2014
  26. Biology Chemistry Part

    I'm trying to calculated the rate of reaction In this lab I took a 50 mL beaker and poured in 10 ml of cold distilled water into it, I then poured in 30 ml of original enzyme solution (I believed we used cold potato juice or something), I then took a piece

    asked by Kate on September 26, 2010
  27. Health (Anonymous)

    I have done all the leg work I was just wondering if some1 could let me know how I did is all. 1- The process of breaking a complex substance down into smaller components is called? A- neutralization B- metabolism C- anabolism D- catabolism Answer- C 2- An

    asked by B B on May 3, 2010
  28. College Health

    No one seems to want to help me. I just need to find out which questions I did not answer right so I can go back and correct them. 1- The process of breaking a complex substance down into smaller components is called? A- neutralization B- metabolism C-

    asked by Anonymous on May 3, 2010
  29. chemistry

    Help with Beer's Law lab experiment question! So we were told to calculate the concentration of 5 standard solutions but I don't know how to do that exactly. The Concentration of the solution in flask B was .0024 M and our lambda max (max absorption) was

    asked by Anonymous on September 6, 2010
  30. chemistry

    In a constant-pressure calorimeter, 60.0 mL of 0.930 M H2SO4 was added to 60.0 mL of 0.320 M NaOH. The reaction caused the temperature of the solution to rise from 22.68 °C to 24.86 °C. If the solution has the same density and specific heat as water

    asked by Amy on May 17, 2016
  31. Chemistry

    I don't know how to start this problem. Someone can help me please. One dm3 of a solution was prepared containing 0.0040 mole of Pb(NO3)2. The Ksp of PbCI2 for the existing conditions is 2.4 x 10^-4. From the list below, choose the smallest numbers of

    asked by Susie on May 23, 2010
  32. science

    solubility equillibrium is dynamic equillibrium between undissolved excess solute and solvent or aqueous solution and crystal in a saturated solution. so rate of dissolving = rate of crystalization if any more solute is added it will disrupt equillibrium

    asked by micheal on July 21, 2009
  33. Chemistry

    At a certain temperature the vapor pressure of pure benzene is measured to be 322. torr . Suppose a solution is prepared by mixing 138.g of benzene and 91.2g of heptane . Calculate the partial pressure of benzene vapor above this solution. 3 sig figs!

    asked by Elizabeth L. on April 11, 2012
  34. AP Chemistry

    Assume that 30.0 mL of a 0.10 M solution of a weak base B that accepts one proton is titrated with a 0.10 M solution of a monoprotic strong acid HX. (a) How many moles of HX have been added at the equivalence point? (b) What is the predominant form of B at

    asked by Sally Perez on March 8, 2010
  35. Algebra I

    Scott wants to make 6 gal of a 50% sugar solution by mixing together a 60% sugar solution and pure water. How much of each solution must he use? mixture 1 @ 60% = x gallons pure water = 100% - x (??? that's my question...is that correct? or is it 0?)

    asked by Cale on February 22, 2017
  36. Chemistry

    25cm3 Of 3g Of Hydrated Sodium Trioxocarbonate(iv) Solution (NaCO3XH2O)Per 250cm3 Was Neutralized By 13.20cm3 Of 0.16m Hydrochloric Acid Solution. Write The Equation For The Reaction. Calculate The Conc Of Base In Mol/dm3. Calculate The Molar Mass Of The

    asked by Loveth on October 11, 2016
  37. Chemistry

    25cm3 Of 3g Of Hydrated Sodium Trioxocarbonate (iv) Solution (NaCO3XH2O)per 250cm3 Was Neutralized By 13.20cm3 Of 0.16m Hydrochloric Acid Solution. 1) Write The Equation For The Reaction. 2) Calculate The Conc Of The Base In Mol/dm3. 3) Calculate The Molar

    asked by Loveth on October 11, 2016
  38. Chemistry

    A reaction is peformed in which 50 ml of .400M silver nitrate and 75 ml of .100M hydrochloric acid are mixed together. The initial temperature of the solutionn was 25 C and the final temperature was 27.2 C. What is the enthalpy, in kj/mol, for the

    asked by Lydia on November 18, 2012
  39. med math

    the pharmacy sends you a vial of 1.5 grams of ampicllin. The instructions state to mix the powders with 9.8ml of sterile water to make a solution of 1.5grams/ 10ml. How much solution would you draw to administer 750mg of ampicillin? Attempt: (750mg X

    asked by saya on January 20, 2017
  40. Chemistry

    Are these reactions Exothermic or Endothermic? How do I know? 1.) Mg(OH)2(s)Mg+2(aq) + 2OH-(aq) Saw solution lighten from medium pink to very light when heated in hot water bath. (It had phenolphthalein drop for indicator.) 2.) HSO4-(aq)+

    asked by Ann on July 11, 2013
  41. chemistry

    When filling the buret with NaOH solution, you left an air bubble in the buret tip. The bubble was released durning your first KHP titration. Would the following technique error result in an erroneously high or reeoneously low calculated molarity of NaOH

    asked by Diane on February 22, 2010
  42. Chemistry

    Consider two cells, the first with Al and Ag electrodes, and the second with Zn and Ni electrodes, each in appropriate 1.00M solutions of their ions. If 2.10g of metal is plated in the voltaic cell, how much metal is plated in the electrolytic cell?

    asked by Katherine on June 3, 2012
  43. Chemistry

    Would you store a solution of zinc nitrate in an aluminum container? Use half-reactions to explain your answer. Al ==> Al^+3 + 3e Zn ==> Zn^+2 + 2e Look up the above half reactions and you will see that the Al will go into solution and the Zn+2 will come

    asked by J.M. on January 21, 2007
  44. Chemistry

    7.5 g of a solid are added to 87.6g of water at 23.7 degrees C. When the solid has all been dissolved and thoroughly mixed with the water, the temperature of the solution is decreased by 6.2 degrees C. Calculate the heat of the solution in joules per gram

    asked by Anonymous on July 15, 2008
  45. chemistry

    assume you had a solution that contained a mixture of a silver ions and stronium ions. come up with three different reaction plans that would allow you to precipitat either the silver ion or strontium ion, but the other ion would remain in solution

    asked by Colby on December 1, 2011
  46. Chemistry

    A)What mass of silver chloride can be produced from 1.33 of a 0.207 solution of silver nitrate? I got this one, its 39.4 g B)The reaction described in Part A required 3.28 of potassium chloride. What is the concentration of this potassium chloride

    asked by Kristi on October 14, 2011
  47. Physics

    A)What mass of silver chloride can be produced from 1.33 of a 0.207 solution of silver nitrate? I got this one, its 39.4 g B)The reaction described in Part A required 3.28 of potassium chloride. What is the concentration of this potassium chloride

    asked by Kristi on October 14, 2011
  48. science(chem)

    How would I make a 5% solution of sodium bisulfite? sodium bisulfite: NaHSO3 Molar mass: 104.06 g/mol is it 5% w/w or v/v or w/v b/c if it was w/w then it would be weight percent w/w= weight solute/ weight solution* 100 I need help on this Thanks

    asked by ~christina~ on November 4, 2007
  49. chemistry

    What does a buffer do? A. It resists a change in pH when H+ or OH- is added to a solution. B. It prevents an acid-base reaction from happening. C. It prevents an acid or base from being neutralized. D. It prevents a salt from forming in solution.

    asked by jessie on September 12, 2016
  50. health

    11. Which of the following systems would be the portal of entry for contaminated vaginal secretions? A. Nervous C. Genitourinary B. Lymphatic D. Musculoskeletal12. A patient showing Kaposi’s sarcoma is also likely to be infected with A. ARC. C.

    asked by Anonymous on December 22, 2010
  51. Art

    1. The texture that are present in this image are A. rough B. smooth C. silky D. soft 2. In this sculpture, the artist had to create many textures. How could the artist have created the soft texture of skin? A. by using a tool to create small holes for her

    asked by Connexus Student on October 10, 2018
  52. Chemistry

    A 0.1873 g sample of a pure, solid acid, H2X was dissolved in water and titrated with 0.1052 M NaOH solution. The balanced equation for the neutralization reaction occurring is H2X(aq) + 2NaOH(aq) ¨ Na2X(aq) + 2H2O(l) If the molar mass of H2X is 85.00

    asked by Lauren on May 11, 2011
  53. Chemistry

    Mean titre of 0.2M sodium thiosulphate = 32.2 ml 1) Calculate number of moles of S2O32- which react in the titration 2)Calculate how many moles of I2 react with this amount of S2O3 3)How many Cu2+ ions are needed to liberate this amount of I2? Use this

    asked by Chirag on January 5, 2017
  54. chemistry

    A nitric acid solution containing 71.0% by mass of the acid has a density of 1.42g/ml how many grams of nitric acid are present in 1.0L of this solution

    asked by cheryl on May 3, 2013
  55. MATH

    Suppose that you have a supply of a 25% solution of alcohol and a 75% solution of alcohol. How many quarts of each should be mixed to produce 100 quarts that is 30% alcohol?

    asked by JOE on September 11, 2010
  56. chem

    1 molar solution of Pb(NO3)2 you want 3mL of 0.5 Molar Pb(NO3)2 how much of the one molar solution do you mix with H2O to reach your goal

    asked by bob on May 27, 2010
  57. Science

    Rubbing alcohol is a solution of 70 percent alcohol and 30 percent water. In the alcohol solution, which is the solute and which is the solvent? Explain.

    asked by Amber-NEED HELP!!! on May 7, 2008
  58. Algebra 116

    1. Solve using the Elimination Method. 2r - 7s = -57 7r %2B 2s = 39 What is the solution set ______? 2. Simplify -8[-90-(-60-14)]= ______ 3. Solve using the Substition Method. 5x %2B 7y = 41 x = 61 - 8y What is the solution _______? 4. On three consecutive

    asked by MzMaria on September 30, 2008
  59. biology

    If I had an experiment where I was testing how the membrane permeability is affected by ethanol, and by doing this had to observe thin onion slides with different ethanol concentrations and had to count how many nuclei were seen through the microscope once

    asked by anonymous on January 31, 2012
  60. science

    Function/ Human Structure/ Plant Structure 1. Gas exchange 1. lungs 1.Stoma 2. Circulation 2. Blood vessels 2.Xylem 3. Water intake 3. mouth 3.Roots 4. Energy intake 4. mouth 4.Chloroplasts 5. Internal support 5. skeleton 5.Stem 6. Energy Storage 1. Fat

    asked by here is my chart Dr. Bob on June 4, 2014
  61. science

    A swimming pool contains 155m3 of water. If water must be heated from 16C to 32C. How many Joules of heat energy must be supplied? 1 cal=4.184 J Do I need to convert 155m3 to weight? yes. Then mass x 4.184 J/g*c x (Tfinal-Tinitial)= heat energy required.

    asked by Melba on September 26, 2006
  62. CHEMISTRY

    Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br- and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

    asked by sabrina: Please help on November 28, 2012
  63. CHEMISTRY

    Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br- and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

    asked by sabrina: Please help on November 28, 2012
  64. CHEMISTRY

    1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

    asked by sabrina: PLease help!I fixed the question on November 28, 2012
  65. CHEMISTRY

    1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

    asked by sabrina: who can help? on November 28, 2012
  66. chemsitry

    Consider the diprotic acid H2A with K1 1*10^-3 and K2= 1*10^-9 . Find pH, [H2A], [HA], and [A2-] for a .2000M solution of H2A b)Find pH, [H2A], [HA], and [A2-] for a .200M solution of HA- c) Find pH, [H2A], [HA], and [A2-] for a .200M solution of A-

    asked by Jessica on April 7, 2013
  67. maTH part (b)

    Part (b) 1.Knowing that Sally put 2% of her salary into her 401K during her first two years, how much has Sally contributed to her 401-K plan on the first year? 2.What is Sally’s gross salary on the 2nd year, after a 3.5% raise? 3.Knowing that Sally put

    asked by dEE on June 24, 2007
  68. Chemistry (Ksp and Solubility)

    Kindly answer my query as early as possible.Please solve the complete question A solution contains 0.01M Ag+ and 0.001M Ba+2 . ksp of Ag2CrO4 = 2.4*10e-12 ksp of BaCrO4 = 1.17*10e-10 A solution of K2CrO4 is added to this solution. Which will precipitate

    asked by Bilal Asif on November 8, 2015
  69. AP Chemistry

    (a) When 300.0 milliliters of a solution of 0.200 molar AgNO3 is mixed with 100.0 milliliters of a 0.0500 molar CaCl2 solution, what is the concentration of silver ion after the reaction has gone to completion? (b)Write the net cell reaction for a cell

    asked by Jessica on April 5, 2010
  70. English

    I need to find 4 rhetorical devices and I am having trouble! Pearson’s address on the inauguration of the national flag of Canada: On September 5, 1945 an Order-in-Council was passed declaring the Red Ensign to be Canada's National Flag pending a

    asked by Jessica A on March 5, 2011
  71. chem

    Determine the unknown concentration of the ion in each of the following cells. (a) Pb(s) | Pb2+(aq, ?) || Pb2+(aq, 0.10 mol·L-1) | Pb(s), E = +0.047 V. (b) Pt(s) | Fe2+(aq, 1.0 mol·L-1) , Fe3+(aq, 0.10 mol·L-1) || Fe3+(aq, ?), Fe2+(aq, 0.0010 mol·L-1)

    asked by maya on June 21, 2013
  72. English

    Swimming Strokes by Lee Carroll Paragraph 4: One of the most easiest strokes for people who are just learning to swim are the backstroke because the swimmer does not put their faces in the water. Your nose and mouth stay above the water, and they can

    asked by katelyn on March 23, 2011
  73. Solving inequality Test 29 questions

    1. Which number is a solution of the inequality G > 6.4 2. Which number is a solution of the inequality y+2>8 3. which number is A solution of the inequality 6>z(10-z) 4. Choose the correct solution and graph for the inequality y-5≤-8 5. Choose the

    asked by Jason Roberj1 on December 8, 2016
  74. MATH :)

    3. In Biology, it is found that the bacteria in a certain culture double every half-hour. If the initial number of bacteria in culture is 1000, A. Find the defining equation for the number N of bacteria in culture after T hours, assuming that no bacteria

    asked by NEED ANSWER URGENT. ANON. on May 4, 2011
  75. science

    Explain what would happen if your epiglottis stopped working properly. A. you would have to go to dialysis to get your blood filtered everyday B. you would have to use an inhaler when the pollen or dust repeatedly bothered you C. you would choke on food

    asked by josiah on April 13, 2016
  76. Chemistry

    A base has a Kb of 2.5 x 10–11. Which of the following statements is true? A.This is a concentrated base. B.This base ionizes slightly in aqueous solution. C.This is a strong base. D.An aqueous solution of this base would be acidic. My answer is D...?

    asked by Cassie on February 12, 2013
  77. Art

    I left out the following statements. I really need your revision. Thank you. 1) He keeps her (virtually) prisoner in his country house. 2)While she is wriing to her mum, her master surprises her. He accuses her of behaving foolishly for she informed both

    asked by Frank on May 7, 2012
  78. U.S History

    I really don't understand why Loudoun was shocked that the "leading people" in the colonies defended their "Liberties" and opposed "royal authority?" ( I really need improvement in my History subjects.) Basically, all those who advocated "liberties" and

    asked by STAR on January 16, 2007
  79. English

    Hello I am in 4th grade and i have wrote this poem: i am waiting for the rain from such a Long time this heatness is suffocating Air conditionar has just became the prime Opening the windows and everywhere is the grime Feel's like I am in a desert Will it

    asked by Chris Chance on June 6, 2011
  80. Chemistry lab

    A 1.340gram sample of an unknown acid, H3A, was placed in a 250.0 mL volumetric flask and diluted to volume with water. A 45.35 mL sample of this acid solution was titrated with 37.77 mL of a 0.1006M NaOH solution. A) Using one set - up dimensional

    asked by Stacy on March 22, 2016
  81. science

    The speed of light in a prticular ype of glass is 1.68x10^8 m/s. What is the index of refraction of the glass? I don't understand if how to solve this problem. Do you put an index of refraction of glass that you know or are you solveing for glass that you

    asked by Zuri on November 27, 2006
  82. Chemistry 3

    How is it possible for me to tell which of these solutes will produce an acidic solution when dissolved in water? LiOH CH3CO2K H2SO3 KOH NaOH NH4NO3 NaOH NaOH can't be the only one... Molecules that produce OH^- when dissolved in water will be basic.

    asked by Lindsay on May 24, 2007
  83. Algebra

    A chemist has two solutions of sulfuric acid. The first is one half sulfuric acid and half water. The second is three-fourths sulfuric acid and one fourths water. He wishes to make 10 liters of a solution which is two-thirds sulfuric acid and one-thirds

    asked by Jane on November 10, 2013
  84. chemistry

    What is the result we get when NaOH and Na2CO3 solution are added to alcohol respectively in difference test tubes? (2)Discuss the reactions of aldehydes with fehling's solution.Give the relevant equation. (3)How would ethanoic acid react with ammonia(NH3)

    asked by David on July 20, 2011
  85. chemistry

    What is the result we get when NaOH and Na2CO3 solution are added to alcohol respectively in difference test tubes? (2)Discuss the reactions of aldehydes with fehling's solution.Give the relevant equation. (3)How would ethanoic acid react with ammonia(NH3)

    asked by David on July 20, 2011
  86. Chemistry - please help

    Please help to determine the (%w/w) benzoyl peroxide (C14H20O4) in a sample. Procedure: 2.500g of sample was dissolved in 75ml dimethylformamide and diluted to 100.0ml with the same solvent. (Solution T). To 5.0ml of Solution T, 20ml of acetone and 3ml of

    asked by angela on August 3, 2010
  87. General Chemistry

    "How would you prepare 150. mL of 0.1M sodium hydroxide given a stock solution of 3.0M NaOH?" I made calculations and figured the process would be to dilute 5 mL of the 3.0M NaOH to 150. mL. Is this correct? For the ideal 150. mL of 0.1M NaOH, I calculated

    asked by Emily on April 21, 2013
  88. Science (Chemistry)

    The question: Balance each of the following skeletal equations by using oxidation and reduction half reactions. All the reactions take place in acidic solution. Identify the oxidizing agent and reducing agent in each reaction. a) Cl[sub]2[/sub] (g) +

    asked by Jo on February 11, 2007
  89. algebra

    i need help writing this out.. You have a credit card with a balance of $754.43 at a 13.6% APR. You have $300.00 available each month to save or pay down your debts. a. How many months will it take to pay off the credit card if you only put half of the

    asked by z on April 29, 2019
  90. grammar

    Richard III supposedly had the young princes murdered. Never found out what really happened to them. Thank you for using the Jiskha Homework Help Forum. This should not be labeled "grammar" but "English." There was a lot of supposition about who exactly

    asked by Anonymous on March 22, 2007
  91. math algebra

    Decide whether the equation has one solution, no solution or infinitely amount of solutions. 1: 2(x - 3) = 2x one none infinitely 2: 3(y - 3) = 2y - 9 +y one none infinitely 3: 10x - 2 - 6x = 3x - 2 + x one none infinitely 4(x + 3) + 2x= x - 8 one none

    asked by hngh on October 3, 2014
  92. human anatomy and physiology

    cells are the basic unit of life based on the original cell theory. name and define the function of at least nine organelles of animal cells. You will find a list of 14 cell organelles and their functions (what they do) at:

    asked by Kristen on August 23, 2005
  93. American Government

    Hi, I need some help with a couple government questions. 1. State governments could print their own paper money under the articles of confederation. True or False **my answer=true 2. Which of the following explains changes that happened in U.S. foreign

    asked by Dennis on November 23, 2014
  94. algebra

    A 400 g solution is 25% salt. How much salt must be added to produce a solution that is 40% salt?

    asked by omar on December 2, 2010
  95. algebra

    A 400 g solution is 25% salt. How much salt must be added to produce a solution that is 40% salt?

    asked by omar on December 2, 2010
  96. MATH

    for what value(s) of k does the equation kx - 10 - 5x^2 have: a) one real solution b) two distinct real solutions c) no real solution

    asked by Eloise on March 21, 2015
  97. math

    How many solutions does the system have? y - 5x = -6 3y - 15x = -12 A) infinitely many solutions B) no solution C) two solutions D) one solution

    asked by Jane on December 29, 2011
  98. Math

    do the equations y=2x+3 and x=1-2y have common solution, no common solution or infinitely many common solutions?

    asked by Brooke on March 4, 2014
  99. algerba..plz help

    A 400 g solution is 25% salt. How much salt must be added to produce a solution that is 40% salt?

    asked by abc on December 7, 2010
  100. Science

    You have a solution that contains Ag* ions and another that contains Na* ions. How would adding a solution that contains Cl- ions to these solutions enable you to tell which is which?

    asked by Sheryl on October 22, 2011