a certain reaction has the following generaln form

74,866 results, page 75

  1. chem

    Calculate ΔG° (in kJ/mol) for the following reaction at 1 atm and 25 °C: C2H6 (g) + O2 (g) → CO2 (g) + H2O (l) (unbalanced) ΔGf° C2H6 (g) = –32.89 kJ/mol; ΔGf° CO2 (g) = –394.4 kJ/mol; ΔGf° H2O (l) = –237.13 kJ/mol
  2. Chemistry

    1.What hydrocarbons generally will undergo an immediate reaction with Br? 2.What hydrocarbons generally will undergo an immediate reaction with KMnO4 Choices for both are Alcohols,Alkanes, Alkenes, Aromatics I think for 1. is at least Alkenes and maybe Aromatics and Alkanes.?
  3. Chemistry

    1.What hydrocarbons generally will undergo an immediate reaction with Br? 2.What hydrocarbons generally will undergo an immediate reaction with KMnO4 Choices for both are Alcohols,Alkanes, Alkenes, Aromatics I think for 1. is at least Alkenes and maybe Aromatics and Alkanes.?
  4. chemistry

    1 liter of a 1 M lithium hydroxide solution is added to 1 liter of a 1 M barium chloride solution, and a precipitate forms. What ions are left in solution after the reaction is complete? What ions are left in solution after the reaction is complete?
  5. PYSICS

    The upward normal force exerted by the floor is 600 N on an elevator passenger who weighs 610 N. What is the reaction force to the upward normal force exerted by the floor? What is the reaction force to weight of the passenger? What is the magnitude of the acceleration?
  6. chemistry

    Copper(II) sulfide reacts with oxygen to produce copper (II) oxide plus sulfur dioxide. Suppose you start this reaction with 50.0 grams of copper(II) sulfide and 50.0 grams of oxygen and you actually produce 33.5 grams of copper(II) oxide. Calculate the percent yield for the ...
  7. Science Chemistry

    LIST: SODIUM CARBONATE. CALCIUM CARBONATE. ZINC SULFATE. ZINC NITRATE. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation for the ...
  8. health

    How are the data elements contained in the HIPAA 837 claim form similar to the CMS-1500, and how does each form relate to the claims process? In your opinion, do the similarities between HIPAA 837 and CMS-1500 complicate or simplify the claims process? Explain your answers
  9. Chemistry

    Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming", in which methane gas, CH4, from natural gas reacts with water vapor to form carbon monoxide ...
  10. Math

    Part 1: Answer the following question: In a survey of students about favorite sports, the results include 22 who like tennis, 25 who like football, 9 who like tennis and football, 17 who like tennis and baseball, 20 who like football and baseball, 6 who like all three sports, ...
  11. ELA

    1. which of the following details about the author's life most likely influenced her ideas for the novel Walk Two Moons: A. she came from a large family B. Her family was typically a noisy and rowdy bunch C. she enjoyed family vacations piled in the car on long drives D. as a ...
  12. geometry

    find the slope of a line that passes through the following points. (4,5) and (3,0) using the perpendicular and parallel slopes write slope intercept form equations for both perpendicular and parallel lines all perpendicular lines pass through the point(2,5) and parallel lines...
  13. Chemistry(Urgent, please respond, thanks!!)

    1) For the reaction system, 2 SO2(g) + O2(g) = 2 SO3(g), Kc has a value of 4.62 at 450.0 K (Kelvin). A system, at equilibrium has the following concentrations: (SO3) = 0.254 M; (O2) = 0.00855 M. What is the equilibrium concentration of SO2? Is set this up as 4.62=(SO3)^2 / (...
  14. math

    The completion of each license plate is tested to see if the values random. Create an n-ary relation – in table form – that depicts possible results of ten license plate outputs. Include the following results: • • Number • Letter • Colors...
  15. chemistry

    Four solution are prepared and mixed together: Start with 100.0ml of 0.100M BaCl2. Add 50.0ml of 0.100M AgNO3. Add 50.0ml of 0.100M H2So4. Add 250.0ml of 0.100M NH4. Write an equation for any reaction that occurs after each step and calculate the concentration of Ba,CL,NO3,NH4...
  16. math (algebra one )

    Write an equation of the line that passes through each point with the given slope. (-3,-4) ,m=3 a. y=3x+13 b.y=3x-5 c.y=-3x+5 d.y=3x+5 ?? The general equation for a sraight line is in the form y=mx+b where m is the slope and b is the y intercept. You are given m, Plug -3 in ...
  17. math b

    Combine the radicals sqrt 72 + sqrt 18 6sqrt7 - 4sqrt7 Multiply & express in simplest form sqrt5 x sqrt20 1/3sqrt18 x sqrt16 Divide & express in simplest form sqrt80 / sqrt5 sqrt150 / sqrt3 Rationalize the denominator 5 / 2-sqrt3 6 / sqrt7+2 3 / sqrt6 2+sqrt3 / 4-sqrt3
  18. PRECALCULUS

    1.) determine two pairs of polar coordinates for the point (-4sqrt3, 4sqrt3)with 0degrees less than or equal to theta less than or equal to 360degrees 2.) Use DeMoivre's Theorem to find (1-i)^10. write your answer in the form a+bi. 3.) Find the cube roots of -8. Write your ...
  19. Algebra

    Write the equation of a line that contains (-8,4) and the midpoint of the segment connecting (-10,5) and (-5,0) in standard form. I'm not sure what I'm doing wrong. I found the midpoint (-7.5, -3.5), found the slope, and put the equation in standard form. I got x + y = -12, ...
  20. drbob222, math ,algebra

    can you explain to me the following problem , ms.sue and others are trying to help me but they are making me more confuse. Is there any short cuts to the following problem. Directions:multiply and write the answer in simplest form. 4/12 times 10/4 first, you have to multiply ...
  21. Chemistry

    A 20.29 g sample of impure MgCO3 is completely decomposed at 1000oC in previously evacuated 2.0 L reaction vessel. After the reaction was complete the solid residue had a mass of 15.9 g. Assume that only MgCO3 could produce gas CO2 what percent of original sample was magnesium...
  22. Health care

    Which of the following refers to the presentation of patient information in a useful form and the association of other relevant details with it? Computer data Health information Patient data Health data Consumer information Computer dat? was my gut choice
  23. help math

    1.Write the ratio in the simplest form 16:24 1:2 4:3*** 3:4 2:3 2.Solve the following proportion p/6 =7/8 p=5.25*** p=8 p-10.5 p=42 3.James has a model helicopter. The model is 8 inches long and 7 inches wide. The actual helicopter is 56 inches long. What is the helicopter's ...
  24. biochemistry

    when a reaction A<-->B starts, there is three times as much product as reactant. When it reaches equilibrium, there is twice as much product as reactant. Show how to calculate the standard change in gibbs free energy for this reaction. I did it but I'm not sure if I did ...
  25. health

    How are the data elements contained in the HIPAA 837 claim form similar to the CMS-1500, and how does each form relate to the claims process? In your opinion, do the similarities between HIPAA 837 and CMS-1500 complicate or simplify the claims process?
  26. PHI 103

    PHI 103 Symbolic Logic- write 2 argument in English,one in the form of modus ponens and one in the form of modus tollens.Then write the argument in symbols using sentences letters and truth-functional connectives.
  27. Chemistry

    Given a diprotic acid, H2A, with two ionization constants of Ka1 = 4.5× 10–2 and Ka2 = 5.2× 10–7. Calculate the pH and molar concentration of each protonated form for a 0.133 M solution of NaHA. Calculate the pH and molar concentration of each protonated form for a 0.133...
  28. Chemistry

    Consider the following hypothetical acid-base reaction. A(aq) + B(aq) C(aq) + D(aq) WA WB SA SB Question 13 options: The position of the equilibrium shifts from left to right The position of the equilibrium shifts from right to left The position of the equilibrium doesn’t ...
  29. please i need help accounting

    i have a promblem it gives me the information and form i understand the information but cant fill out the form because i don't know how and its 71 points out of the whole exam. is there anyway u can help me out if i give you the information. its about transactions the first i ...
  30. CHEM

    Which of the following will be affected by the addition of a catalyst to a chemical reaction? Choose all that apply. thanks A)the magnitude of the equilibrium constant B) the value of the ratio kf/kr C) ÄHo D) ÄSo E) the value of the forward rate F) the value of the reverse ...
  31. Chemistry

    Reposted: Use Hess's law to calculate the enthalpy change for the reaction: 3C(s) + 3H2(g) yield C3H6(g) Given the following thermochemical equations: 2C3H6(g) + 9O2(g) yield 6CO2(g) + 6H2O(l) enthalpy change= -4116.0 kJ/mol C(s) + O2(g) yield CO2(g) enthalpy change= -393.51 ...
  32. Chemistry 120

    A sloution of calcium nitrate, C(NO3), reacts with a solution of ammonium fluoride, NH4F, to form solid calcium fluoride, CaF2, and ammonium nitrate, NH4NO3(ag). When 45.00 mL of 4.8724 x 10 -1M Ca(NO3)2 solution was added to 60.00 mL of 9.9981 x 10 -1M NH4F solution, 1.524g ...
  33. science

    I need help findnig out the error involved with using a graduated cylinder and gas collection tube to calculate the rate of reaction. We beed more details than you have provided. What kind of experiment did you do? What reaction was involved? How did you use the graduated ...
  34. Chemistry

    If the reaction Fe2N(s) + 3/2H2(g) -> 2Fe(s) +NH3(g) comes to equilibrium at a total pressure of 1 bar, analysis of the gas shows that at 700. and 800.K, PNH3/PH2=2.165 and 1.083 respectively, if only H2(g) was initially present in the gas phase and Fe2N(s) was in excess. a...
  35. Chemistry Urgent

    A calorimeter contains 32.0mL of water at 13.0∘C . When 2.30g of X (a substance with a molar mass of 82.0g/mol is added, it dissolves via the reaction X(s)+H2O(l)¨X(aq) and the temperature of the solution increases to 30.0∘C . Calculate the enthalpy change, ƒ¢...
  36. Chemistry

    Hg + Br2 -> HgBr2 1. What mass of HgBr2 can be produced from the reaction of 10.0 g Hg and 9.00 g Br2? What mass of which reagent is left unreacted? 2. What mass of HgBr2 can be produced from the reaction of 5.00 mL mercury (density = 13.6 g/mL) and 5.00 mL bromine (density...
  37. Chemistry

    a redox reaction is a reaction in which 1.only reduction occurs 2.only oxidation occurs 3.reduction&oxidation occur at the same time 4.reduction occurs first and then oxidation occurs i think its 3 or 4.
  38. Chemistry

    I posted this question earlier, but I believe it was a bit confusing in the way I typed it. Given the following two step reaction: 4 P + 5 O2 -> P4O10 P4O10 + 6 H2O -> 4H3PO4 If you have 8.28 g of P, 15.65 g of O2, and 19.95 g of H2O, how many grams of H3PO4 can be ...
  39. Chemistry PLEASE HELP!

    Check all of the following statements which are TRUE for a titration. Select one or more: a. A suitable primary standard must be available. b. The concentration of the solution in the buret (the titrant) must be known before the titration is begun. c. Titrations can only be ...
  40. Informal Logic

    rite two arguments in English, one in the form of modus ponens and one in the form of modus tollens. Then, write the arguments in symbols using sentence letters and truth-functional connectives. (If your computer does not have all the symbols needed, use some other symbol you ...
  41. Thermodynamics

    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 T=298.15 K and 1.00atm, solid glycylglycine has the following thermodynamic properties: DeltaGf= -491.5 ...
  42. chemistry- DR BOB

    and we had to round this was the question was to again calculate the number of moles in each of the following masses a)64.1 g of aluminum b)28.1 g of silicon c)0.255 g of sulfur d)850.5 g of zinc a) 64/27 = 2.4 mols b) 28.1g/28=1.0 mol c) 0.255/32=.0080 d)850.5/65 =13.076. I ...
  43. Science

    Lithium atoms, like hydrogen atoms, have only a single electron in their outer shells, yet lithium atoms do not join together to form Li2 molecules the way hydrogen atoms form H2 molecules. Instead, lithium is a metal with each atom part of a crystal structure. Can you think ...
  44. Chemistry

    Consider the following reaction: 2Fe2O3 --> 4Fe + 3O2 ∆Hrxn° = +824.2 kJ The decomposition of 29.0 g of Fe2O3 results in a. the release of 150 kJ of heat b. the release of 12000 kJ of heat c. the absorption of 12000 kJ of heat d. the absorption of 150 kJ of heat e. ...
  45. chemistry

    Write the balanced net ionic equation for the following reaction and determine the conjugate acid-base pairs. HNO3(aq)+Li2CO3(aq)<--->LiNo3(aq)+LiHCO3(aq) Which component in the net ionic equation is the acid, the base, the conjugate base, and the conjugate acid Thank you
  46. chemistry

    when heated in the presence of air, 80 grms. of copper completely react to form 100 grms. of copper oxide what is the mass of oxygen that has combined with the copper? how much copper must be heated to form 300 grms. of copper oxide?
  47. math

    Can anyone help w/ these. 1) Solve the equation in the internal [0deg, 360deg]. a) sin 2x = -sin x b) sin 2T = -1/2 (where T is angle) c) 4 sin^2T = 3 2) Evaluate the expression. sin(arctan 2) 3) Rewrite the following w/o using trigonometric or inverse tirgonometric functions...
  48. chem

    For each of the following equilibria, use Le Chatelier's principle to predict the direction of reaction when the volume is increased. (a) C(s) + H2O(g) CO(g) + H2(g) (b) 2 H2(g) + O2(g) 2 H2O(g) (c) 2 Fe(s) + 3 H2O(g) Fe2O3(s) + 3 H2(g) a i put no change because there are the ...
  49. chemistry- can you check my answers?

    can you please check my answers?? 9. For the following reaction delta H=2816 kj. 6 CO2(g) + 6 H2O(l) -> C6H12O6(s) + 6O2(g) how is the equilibrium yeild of C6H12O6(s)affected by each of the following? a) increasing pressure of CO2 increase decrease no effect Answer: ...
  50. English

    1. The old lady moved me. 2. I was moved by the old lady. (#1 is an active voice sentence. Right? #2 is the passive form of#1? Am I right? Do you use the active form frequently?)
  51. AP CHEM

    Kc = 1.87 10-3 for the following reaction. PH3BCl3(s)=>PH3(g) + BCl3(g) (a) Calculate the equilibrium concentrations of PH3 and BCl3 if a solid sample of PH3BCl3 is placed in a closed vessel and decomposes until equilibrium is reached. (b) If the flask has a volume of 0.400...
  52. chemistry

    Which of the changes will form more CaCO3 (more moles CaCO3)? CO2 + Ca(OH)2=CaCO3 +H2O delta H =-113kJ Write and explain if amount CaCO3 decrease, no change or increase with regards to the following situations: a) Increase volume at constant temperature. b)Increase partial ...
  53. Literature

    Can someone explain to me what the second paragraph in the Declaration of Independence means? I have to discuss how America today meets the promise of the opening of the second paragraph in the Declaration and how it does not. Thank you. -Writeacher has broken down the 2nd ...
  54. Chemistry (DrBob222)

    Hi, here's my (almost) 2-paged lab report introduction (hopefully you remember it from yesterday). I went to class today, and actually a lot of my other classmates' introductions were over 2 pages! Now I'm feeling kind of insecure about mine, and I'm not even sure if 2 pages ...
  55. chemistry

    When 0.667 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 108C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. what is the molar heat of reaction, H rxn, for the ...
  56. math

    Triangle ABC undergoes a series of transformations to result in triangle DEF. Is triangle DEF congruent to triangle ABC ? Is it Congruent or Not congruent? 1.)) Triangle ABC is translated 3 units up and 5 units right, and then dilated by a scale factor of 4 to form triangle ...
  57. Chemistry

    What is the change in enthalpy of the following reaction? 2NaBr(aq) + PbCl2(aq) 2NaCl(aq) + PbBr2(aq) Given: NaCl: ∆H = -411 kJ NaBr: ∆H = -360 kJ PbCl2: ∆H = -359 kJ PbBr2: ∆H = -277 kJ Im lost with this. Everytime I try to do it, it doesn't come out ...
  58. Spanish

    I have two questions about translation. If asked this question, how do I answer it. Cual es tu numero de telefono? I know it is asking my phone number which is 447-7161 but I don't know how to put it in sentence form. The next question is Que te gusta hacer el sabado? I want ...
  59. Algebra

    For question 3-4, use your calculator to create a scatter plot and line of best fit for the following set of data: Average height of a species of tree (in feet) after a certain number of years. Years:1/2/3/4/5/6/7/8 Height:2.1/3.2/6.8/7.3/11.2/12.6/13.4/15.9 3.What is the ...
  60. Science

    of the following illustrates conduction as a mode of heat transfer 1 point a microwave oven produces electromagnetic waves that transfer to the food in the form of head leaving a metal spoon in a bowl of hot soup will make the spoon at a well •• pasta rises and falls with ...
  61. Chemistry

    Are these reactions correct? I was told to do them in "reaction de deplacement simple", or simple moving reaction, I think. 1. Mg + 2HCl = H2 + MgCl2 2. Li + HCl = H2 + LiCl 3. Fe + 2HCl = H2 + FeCl2 4. Zn + 2HCl = H2 + ZnCl2 5. Ca + 2HCl = H2 + CaCl2 6. 2Li + H2O = H2 + Li2O ...
  62. chemistry

    For the first-order reaction A => 3 B + C, when [ A]0 = 0.014 mol·L-1, the concentration of B increases to 0.017 mol·L-1 in 2.7 min. (a) What is the rate constant for the reaction expressed as the rate of loss of A? I found this to be .1923, which I know is correct. (b) ...
  63. precalc

    1. Find (-1+i)^1/3 2. Express 2(cos5pi/3 + isin5pi/3) in regular form. would this be correct: 1-√3i? 3. Find (2+4i)^3 in regular form. 4. Express 5(cos5pi/6 + isin5pi/6) in regular form. would this be correct?: -5√3/2 +5/2i?
  64. chemistry

    When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation for the reaction. b. ...
  65. Chemistry

    Back with another question similar to the one I asked before, but this one's a bit more confusing 4NH3 (g) + 5O2(g) → 4NO(g) + 6H2O(g) ∆H= –909 kJ/mol 2NO(g) + O2(g) → 2NO2(g) ∆H= –115 kJ/mol 3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g) ∆H = –117 kJ mol−1 Which is ...
  66. Health care

    1. Wrongful death statutes create a right to collect damages for A. loss to the patient's estate of future earnings. B. loss to familial quality of life. C. punitive damages D. pain and suffering of the patient. My answer A 2. Elizabeth says duty of care is the obligation ...
  67. Music

    I was wondering is the form of the string quartet's first movement usually sonata-allegro form? Yes, and the same applies to all movements. See http://en.wikipedia.org/wiki/Sonata_form#Sonata_form_and_other_musical_forms
  68. Medical Language

    Could someone please help me with this I have been working at this for a few hours now. A. Use the word bank below to build the medical word that corresponds to each definition in problems 1-16. Word parts may be used more than once. Click the grey box to begin typing. gloss/o...
  69. Chemistry HELP

    In a constant-pressure calorimeter, 50.0 mL of 0.300 M Ba(OH)2 was added to 50.0 mL of 0.600 M HCl. The reaction caused the temperature of the solution to rise from 21.73 °C to 25.82 °C. If the solution has the same density and specific heat as water, what is ΔH for ...
  70. Chemistry

    1. Calculate the delta H for H2(g)+O2(g)=H2O2(g) Bond energies, kJ x mol^-1 H-H 432 H-O 459 O-O 207 O=O 494 I did: deltaH=(2(207kJ/mol))-(432kJ/mol+494kJ/mol) =-512kJ is that correct? 2. The theoretical effect of an increase in T can be explained in terms of the collision ...
  71. Math

    1.Divide.Write your answer in simplest form. (1 point) 2/3 divided by 1/4 a.2 1/2 b.2 2/3 c.2 3/8 d.2 2.Find the product. (1 point) 1/2*3/7 a.4/14 b.3/14 c.7/6 d.2/7 3.Divide.Write the quotient in simplest form. (1 point) 3/5 divided by 2/10 a.6/10 b.3/5 c.3 d.5/15 4.Divide....
  72. chemistry

    Can you please check if I came up with the right answer for this please. A 4.30L container had 55.10 moles of N2O4 added to it. When equilibrium was established the concentration of N2O4 was found to be 1.69M.What is the Kc for the following reaction? N2O4(g)<-->2NO2(g) ...
  73. Science Chemistry

    LIST: SODIUM CARBONATE. CALCIUM CARBONATE. ZINC SULFATE. ZINC NITRATE. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation for the ...
  74. Civics

    John knows many people who feel that small business need more support from the government. They support tax break and other benefits for small business owners. Which of the following best describes the most effective type of action these people could follow? A. attack the ...
  75. biology

    sir, there was a question in my biology test that required us to draw a graph of concentration of sucrose solution against rate of reaction. so how do I plot the graph? If i follow the question's requirement, i have to put the concentration of sucrose solution as the y-axis ...
  76. biology

    sir, there was a question in my biology test that required us to draw a graph of concentration of sucrose solution against rate of reaction. so how do I plot the graph? If i follow the question's requirement, i have to put the concentration of sucrose solution as the y-axis ...
  77. entropy change (chem)

    determine the entropy change for the displacement reaction represented by the following equation : Cl2 + PbBr2 -> PbCl2 + Br2 Cl2 = 223.066 delta S PbBr2 = 182.7 delta S PbCl2 = 131.3 delta S Br2 = 152.231 delta S
  78. algebra

    I trust you know about y = mx + b Realize that when you are given the x or y intercepts, you are really just given two points, in your case the points (4,0) and (0,-2) So it is easy to find the slope, (-2-0)/(0-4) = 1/2 Take it from there Determine the point-slope form of the ...
  79. Algebra

    Write the equation of the line passing through the given point with the indicated slope. Give your results in slope-intercept form. Point: (0,5) Slope:m=3/5. Show work Well, youknow the form is y= mx+b you are given m. You are given a point (0,5) Put that point into the ...
  80. quemistry

    Br2 + Cl2 ---> 2BrCl 1. FIND ALL THE REASONS ESTEQUIOMETRICAS WITH REGARD TO Cl2. 2. all the masses of Cl2 are needed to form 55g of BrCl. 3. all the grams of Br2 are needed to form 38g of BrCl. please I need help for this question for a homework. thanks
  81. CHECK MY ANSWERS American Government

    *** By my answer Please check! 1. Which statement best describes the importance of the Magna Carta? (1 point) British judges should hold judicial power. Even the king must respect certain rights of the people.*** Federalism is the best form of government. Parliament should ...
  82. AP Chemistry

    2 Al + 3 Cu(NO3)2 --> 2 Al(NO3)3 + 3 Cu 1. Write balanced equations for the oxidation and reduction half-reactions. Identify each half-reaction as oxidation or reduction. 2. In the balanced overall reaction, determine which is the oxidation and reduction agent. 3. Which ...
  83. Science

    5. Which of the following types of pollution cannot be attributed to car and truck emissions? A. acid rain B. sedimentation C. ozone D. photochemical smog 6. Which of the following is a source of photochemical smog? A. fossil fuels B. wind energy C. biomass fuels D. nuclear ...
  84. Math-Algebra

    Bracy would like to form a right triangle our of her wooden sticks. She cut the first stick of the length 6 inches and the second stick of the length 4 inches. What should be the length of the third stick to make sure she will be able to form a right triangle?
  85. Calculus

    A wire of length 12 meter is cut into two parts; one part is bent to form a square, and the other is bent to form an equilateral triangle. Where the cut cut should be made if a) the sum of the two areas is to be a maximum? b) the sum of the two areas is be a minimum?
  86. Chemistry

    The rate law for the reaction NO + O3 > NO2 is rate= k[NO][O3]. What will the effect on the reaction rate if the partial pressure of NO is doubled? What will the effect if the partial pressure of O2 is tripled? Just for clarification: NO will be doubled and O3 would be ...
  87. Science

    Which of the following is NOT true of bacteria? a. Bacteria change the sugar in milk to lactic acid. b. Bacteria change nitrogen into a form plants can use. c. Bacteria change harmful chemicals into harmless ones. d. Bacteria change oxygen into nitrogen.
  88. Science check my answer please

    In a famous letter to Robert Hooke, Isaac Newton wrote, "If I have seen further it is only by standing on the shoulders of giants." Which of the following does this quote best demonstrate? (Points : 1) the cumulative nature of modern knowledge of physics how physicists form ...
  89. Math

    How do I transform this into simple radical form... I have no idea how to do this could you please tell me the logic behind how you do this and step by step thanks (5^(1/2)-3^(1/2))^2 thanks again Also can you tell me how to transform this one into radical form also 18^(1/2)-3...
  90. math - algebra

    f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output value of 5,000?
  91. math - algebra

    f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output value of 5,000?
  92. math - algebra

    f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output value of 5,000?
  93. PED 212 Foundation of Movement & Motor Activitie

    Question 1.1. Which of the following “reminders” for successful lesson planning is correct? (Points : 1) a. it helps you decide when to b.teach certain activities c. it helps you remember which level you are teaching d. it helps you assign appropriate time limits for ...
  94. Insurance Forms

    I need help with a few questions. Could you let me know if I'm going in the right direction. 1- CHAMPVA would be considered a primary payer for a patient who has ______ coverage. A- Medicaid B- fee-for-service C- Medicare D- SSI Answer: A 2- You should record payments that are...
  95. Chemistry

    2) Given the balanced reaction equation predict the moles of each product given the following reactants: AlCl3 + 3 NaHCO3 Al(OH)3 + 3 NaCl + 3 CO2 AlCl3 NaHCO3 Al(OH)3 NaCl 58.4 CO2 a 1 mol 1 mol ? ? b 1 mol 3 mol ? ? c 3 mol 1 mol ? ?
  96. physics

    The motion of a human body through space can be modeled as the motion of a particle at the body's center of mass. The components of the position of an athlete's center of mass from the beginning to the end of a certain jump are described by the following two equations, where t...
  97. chemistry

    The thermite reaction is a very exothermic reaction; it has been used to produce liquid iron for welding. A mixture of 2 mol of powdered aluminum metal and 1 mol of iron(III) oxide yields liquid iron and solid aluminum oxide. How many grams of the mixture are needed to produce...
  98. English

    1. After the rioters in "The Pardoner's Tale" abandon their search for Death, they murder one another. This is an example of: A. dramatic irony B. situational irony C. verbal irony D. poetic irony I said B. 2. "Please don't be offended at my views; They're really only offended...
  99. chemistry

    Can someone explain this to me? In the reaction: --> AgCl(s)<_______ Ag+(aq) + Cl-(aq) the shorter arrow pointing to the right shows that the qe. mixture consists mostly of ______. ---> In the reaction HC2h302 + H20<_______ H30+ + C2h302-, when the concentration of...
  100. Chemistry

    ∆H⁰rxn, for the reaction of Ca(s) + 2H+(aq) -> Ca2+(aq) + H2(g) is -544 kJ/mol. ∆H⁰rxn, for the reaction of CaO(s) + 2H+(aq) -> Ca2+(aq) + H2O(l) is -193 kJ/mol. Based on these results, what is the ∆Hf for CaO(s) [in kJ/mol] if the heat of ...
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