What is the empirical of compound (X) going through the following decomposition reaction?

79,678 results, page 25

  1. chemistry

    Write a balanced equation for the following reaction. Use whole number coefficients and subscripts appropriately. When hydrochloric acid is mixed with sodium hydrogen carbonate, the mixture fizzes. The fizzing occurs because the reaction produces a gas, namely carbon dioxide. ...
  2. CHEMISTRY PLEASE HELP

    For the reaction A + 2B + C ----> 2 D + E the following initial concentration and initial reaction rates are found: [A]null (M) [B]null (M) [C]null (M) 0.150 0.150 0.150 0.275 0.150 0.150 0.275 0.564 0.150 0.150 0.314 0.253 0.193 0.314 0.217 initial rate wrt E (Ms^-1) 0.210...
  3. Chemistry

    I posted this question on Thursday April 12 and received some help..but need more.. thanks Use the following information to identify element A and come pound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it...
  4. physics

    Four light bulbs (A, B, C, D) are connected together in a circuit of unknown arrangement. When each bulb is removed one at a time (and subsequently replaced), the following behavior is observed while it is removed: A B C D A rem * on on on B rem on * on off C rem off off * off...
  5. science

    a) calculate the heat of reaction, in kilojoules, for the reaction: 2NO2(g) + 3H2(g)--->2NH3(g) + 2O2(g) b) is the reaction endothermic or exothermic? how can you tell? I will be happy to critique your work on this. You will have to look up the heats of formation.
  6. Ochem

    Identify the following compound from its IR and proton NMR spectra. C6H10O: NMR: 3.31 (3H, s); 2.41 (1H, s); 1.43 (6H, s) IR: 2110, 3300 cm^-1 (sharp)
  7. english

    Is the following a compound, complex or simple sentence: When water evaporates from the sea, it becomes fresh water.
  8. Math

    Use the law of cosines to solve ABC with A=126.3, b=45, and c=62.5 I did all the work to find a but my problem is finding B a=96.2 Sin(B)=45sin126.3/96.2 B=Sin^-1(45sin126.3/96.2) It's not going through in my calculator
  9. CHEM

    Factors which effect reaction rates. 1) Concentration 2) Temperature 3) Presence of a Catalyst 4) Surface area 5) Orientation You store food in a fridge to prevent spoilage. Which factor are you applying to slow the rate of reaction? Which one of the following burns easily and...
  10. chemistry

    I'm stuck on this problem and only have 2 attempts left. The Ksp of Zn(OH)2 is 1.8x10^-14. Find Ecell for the following half-reaction. Zn(OH)2(s) + 2e^- <-> Zn(s) +2OH^-(aq) So far I've tried using the following methods, none of which have worked... Ecell = (0.0592/n)...
  11. physics : different question

    Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest. 2000 kg car going 5m/s 500 kg car going 20 m/s 1000 kg car going20m/s 500 kg car going10m/s 1000 kg car going10/s 4000 kg car going 5m/s
  12. reaction rate help

    In general, reaction rates double when the temperature is increased by 10ºC. The temperature of a reaction is increased by 40ºC. The rate of the reaction will increase by a factor of ____? is it 16?
  13. chem

    In a chemical reaction, A and B reacts to form D. C is the intermediate product of this reaction. Percent yield of the reaction A+B->C is 50% and the percent yield of the reaction C->D is 90%. How many moles of D can be produced when 14 moles of A and B react?
  14. chemistry. please help!!!

    A voltaic cell is constructed based on the following reaction and initial concentrations: Fe2+ (0.0050M) + Ag+ (2.2M) -> Fe3+ (0.0050M) + Ag(s) calculate [Fe2+] when the cell reaction reaches equilbrium i'm so confused. please help. thank you!
  15. chemistry

    onsider the following reaction between sulfur trioxide and water: SO3(g)+H2O(l)→H2SO4(aq) A chemist allows 61.5 g of SO3 and 11.2 g of H2O to react. When the reaction is finished, the chemist collects 59.3 g of H2SO4.
  16. Chemistry

    Consider the following reaction between sulfur trioxide and water: SO3(g)+H2O(l)→H2SO4(aq) A chemist allows 61.5 g of SO3 and 11.2 g of H2O to react. When the reaction is finished, the chemist collects 59.0 g of H2SO4.
  17. Chemistry

    Given the following balanced equation: 2Na + Cl2 ---> 2NaCl A.List each element on the reactant side and each element on the product side and assign the correct oxidation number to each. B.Identify which element is oxidized in the reaction and which is reduced. C.Identify ...
  18. READING

    Rewrite each sentence, placing commas where they are needed. Uderline each compound subject once compound predicate twice. 1. The bat and glove(C.S) are in the bench.(C.P.) 2. The ballplayer swimmer, and runner, come(C.S.) from the same town.(C.P.) 3. The girl can run fast ...
  19. Chemistry

    Consider the following chemical reaction 2HCL+ Ca(OH)2 CaCl2+2H2O You have mixed 30.00ml of 0.150 M HCl solution with 20.00ml of 0.100m Ca(OH)2 solution what is the molarity of the HCl, Ca( OH)2 and CaCl2 after the reaction has stopped
  20. English

    I forgot to add the following sentences. Thank you very much. 1) When we approached his mother, she went away and set on a bench on her own. 2) Her husband suffers from depression (??) and she doesn't want to talk to anyone, not even with her son. 3) Can you help me put the ...
  21. Chemistry

    From your experience, predict which of the following reactions are spontaneous. a) Zn(s) + 2H+(aq)--> Zn+2(aq) + H2 (g) b) CaCO3(s) + 2H2O(l) --> Ca(OH)2(s) + H2CO3(aq) c) CH4(g) + O2(g) --> CO2(g) + 2H2O(g) d) Ag+(aq) + Cl-(aq) --> AgCl (s) Our book spends very ...
  22. chemistry

    Given the following reaction: Pd(NO3)2+CaSO4-->PdSO4+Ca(NO3)2 If you started with 225.6ml of 6.32M CaSO4 and the percent yield of this reaction was ol 78.2%, what is the actual yield of grams mod of PdSO4?
  23. Chemistry

    A reaction proceeds according to the following mechanism: Cl2 ⇌ 2 Cl (fast equilibrium) Cl + H2 ⇌ H2Cl (fast equilibrium) H2Cl + Cl → 2 HCl (slow) What is the rate law for this reaction?
  24. mosab bin omair

    We examine the following reaction at 250C: PCl5(g) ⇌ PCl3(g) + Cl2(g). At equilibrium we find [PCl5] = 3.4 x 10-5 M, [PCl3] = 1.3 x 10-2 M, and [Cl2] = 1.0 x 10-4 M. Calculate the equilibrium constant, Kc....
  25. chemistry

    elemental analysis indicates the simplest formula of an unknown is C2H4O. when 0.775g of the compound is dissolved in 50g of benzene(C6H6), the solution freezes at 5.06 degree C. what are the molecular weight and the molecular formula of the compound? the freezing point of ...
  26. English

    Why does the pencil look bent in the water? 1. It's because light travels slower through water than through air. 2. It's because the light travels slower through the water than through the air. 3. It's because light goes slower through water than through air. 4. It's because ...
  27. Chemistry

    The Solvay process for the manufacture of sodium carbonate begins by passing ammonia and carbon dioxide through a solution of sodium chloride to make sodium bicarbonate and ammonium chloride. The equation for this reaction is H2O + NaCl + NH3 + CO2 ¨ NH4Cl + NaHCO3. In the ...
  28. CHEMISTRY

    Consider the following reaction: 2H2S+SO2=S(s)+H2O A reaction mixture initially containing 0.500M H2S and 0.500M SO2 was found to contain 1.0×10−3M at a certain temperature. A second reaction mixture at the same temperature initially contains 0.255M H2S and 0.320M SO2. ...
  29. Chemistry

    I am writing out ionic compounds. The compound given is Fe(subscript)2O(subscript)3. I noticed on the periodic table iron had a charge of 3+/2+. Which should I then write down in the cation column of my ionic compound chart? Thank you.
  30. chemistry

    1)RuO2 is molecular, but why is it insulator even though Ru is metal? 2)Why is TiO ionic? I thought only group 1 and 2 would make ionic compound 3)If the the compound has metal and metalloid like GaAs, is it always semiconductor
  31. physics

    which of the following would be the best example of non damped simple harmonic motion? A. mass oscillating vertically on a spring B. sound waves propagating through water C. light waves propagating through a vacuum D. guitar strings vibrating
  32. chemistary

    Explain the words element compound and mixture. Identify which substances ara element compound and mixture
  33. Chemistry Help

    The ΔHvap of a certain compound is 34.68 kJ·mol–1 and its ΔSvap is 93.60 J·mol–1·K–1. What it the boiling point of this compound?
  34. chem

    The ΔHvap of a certain compound is 34.68 kJ·mol–1 and its ΔSvap is 93.60 J·mol–1·K–1. What it the boiling point of this compound?
  35. Chemistry

    The ΔHvap of a certain compound is 30.22 kJ·mol–1 and its ΔSvap is 60.63 J·mol–1·K–1. What it the boiling point of this compound?
  36. chemistry

    queous solution of sodium phosphate (Na3PO4). Adding which compound to the solution will cause a phosphate compound to precipitate?
  37. chemistry

    Consider the following multistep reaction: C+D-> <-CB (FAST) CD+D->CD2 (SLOW) CD2+D->CD3 (FAST) C+3D->CD3 (OVERALL) Based on the mechanism determine the rate law for the overall reaction??
  38. Chemistry

    Given the following exothermic, equilibrium reaction: 3 H2(g) + N2(g) <--> 2NH3(g) Using Le Chatelier's Principle, which of the following changes would shift the equilibrium toward more production of NH3?
  39. chemistry

    A 2.91 gram sample of a gaseous compound that contains only boron and hydrogen has a volume of 1.22 L at 25°C and 1.09 atm. What is the formula of this compound? (Atomic Weight: H = 1.01, B = 10.8 amu) I am not sure but it is B6H10? But I am nto sure if that way i did it ...
  40. chemistry

    A 1.325 g sample of an unknown vapor occupies 386 mL at 114 celsius and 946 mmHg. The simplest formula of the compound is NO2. What is the molecular formula of the compound? (I have N2O4, is this correct and if not, why not? We never went over this type of question in class!
  41. Chemistry

    1. According to the collision theory of chemical reactions: A. High energy collisions result in few successful reactions as there isn’t sufficient time for the products to react. B. High energy collisions lead to the successful formation of products. C. Low energy collisions...
  42. chemistry

    if one can find the ratio of the number of moles of the elements in a compound to one another, one can find the formula of the compound. in certain compound of copper and oxygen, Cux Oy, we find that a sample weighing 0.5424g contains 0.4831g Cu. a. How many moles of Cu are in...
  43. chemistry

    An experiment to determine compound partition among air, water, and soil phases was conducted by adding 1 gram of the compound to a reactor that had 1 m3 of air, 0,001 m3 of water0 and 100 g of solid. The reactor was at atmodpheric pressure and at aconstant tepmrature 20 C The...
  44. chemistry

    An experiment to determine compound partition among air, water, and soil phases was conducted by adding 1 gram of the compound to a reactor that had 1 m3 of air, 0,001 m3 of water0 and 100 g of solid. The reactor was at atmodpheric pressure and at aconstant tepmrature 20 C The...
  45. Math

    1 rabbit saw 6 elephants while going to the river. Every elephant saw 2 monkeys going towards the river. Every monkey holds 1 parrot in their hands. How many animals are going towards the river?
  46. chemistry please help

    Which reaction could yield this compound as the major product? The product is propanal a. oxidation of propanoic acid, CH3CH2COOH b. oxidation of propanol, CH3CH2CH2OH c. reduction of propanol, CH3CH2CH2OH d. oxidation of 2-butanone, CH3CH2C(O)CH3
  47. Grammar and Composition

    1. Christina and Christopher worked together and completed a project about astronomy. a. sentence structure is correct b. sentence contains a simple subject and a compound predicate c. sentence contains a compound subject and a simple predicate d. sentence contains a compound ...
  48. chemistry

    The equilibrium constant for the reaction Cu3(PO4)2(s)    3 Cu2+(aq)  +  2 PO43–(aq) is K = 1.40 x 10–37.  Suppose that a beaker is filled to 1 L with a solution containing [Cu2+] = [PO43–] = 10.0 nM, and 300.0 g Cu3(PO4)2 . Which of the following ...
  49. grammar

    change the following to indirect speech. the lion said to the hare, l am going to eat you'.
  50. English

    In the following sentence, which word is a preposition? I am going to the store. A. I B. am C. to D. the I believe the answer is C, do you agree?
  51. SCIENCE HELP PLZZZZZ! ONLY ONE QUESTION!

    Which of the following correctly describes how nerve impulses move throughout the body? A. Electrical transmission through neurons and elecrical transmission between neurons. B. Chemical transmission through neutrons and chemical transmission between neutons. C. Chemical ...
  52. Chemistry

    Which of these is true about the following reaction? NaOH + HCl ¡æ NaCl + H2O A. NaOH is the proton acceptor. B. HCl acts as the Br©ªnsted-Lowry acid. C. NaOH and HCl are the products. D. This is an example of a neutralization reaction. E. The products will be acidic. Okay...
  53. NEED HELP WITH CHEM HW

    Ethanol (C2H5OH) is synthesized for industrial use by the following reaction, carried out at very high pressure. C2H4(g) + H2O(g) C2H5OH(l) What is the maximum amount of ethanol (in grams) that can be produced when 2.2 kg of ethylene (C2H4) and 0.014 kg of steam are placed ...
  54. chemistry

    True statement for Catalyst ___________ I. make a spontaneous reaction is not spontaneous II. accelerate the reaction forward and slow reverse reaction III. lowering the activation energy of the forward reaction IV. lowering the activation energy of the reverse reaction
  55. English

    Read each sentence. Underline the compound subject compound verb or compound direct object Shakespeare wrote plays and sonnets I underlined plays and sonnets That musician writes and plays his own music I underlined writes and plays People ski and snowboard in those mountains ...
  56. chm

    Which of the following is a covalent compound composed of nonpolar covalent bonds? Answer >>H2 H2O CF4 CH4 NaF
  57. chemistry

    Which of the following chemicals are strong bases? You may select more than one compound. CH2=CH2 Ca(OH)2 NH3 RbOH
  58. CHEM 1411

    A student isolated 25.4g of a compound following a procedure that would theoretically yield 100.1g what was their percent yield?
  59. chem - precipitation problems

    When hydroge sulfide gas is passed through a solution of lead (II) nitrate, lead (II) sulfide precipitates out. Write a balanced equation for this reaction and calculate an average rate, in mol/s for the reaction from this data: 1) at 0 seconds, mass of lead (II) sulide is 0 g...
  60. Algebra

    4) The line with slope 6/5 , going through (0, 2). Write equation in Slope Intercept Form. I am new to this so can you show me a step by step method of solving this problem so i can use it as a practice template.
  61. MATH

    Answer the following: (A) Find the binomial probability P(x = 4), where n = 12 and p = 0.30. (B) Set up, without solving, the binomial probability P(x is at most 4) using probability notation. (C) How would you find the normal approximation to the binomial probability P(x = 4...
  62. statistics

    Answer the following: (A) Find the binomial probability P(x = 5), where n = 12 and p = 0.70. (B) Set up, without solving, the binomial probability P(x is at most 5) using probability notation. (C) How would you find the normal approximation to the binomial probability P(x = 5...
  63. chemistry

    Which of the following experimental conditions describe a reaction which is kinetically controlled? These conditions do not describe kinetic control. ΔG = -100 kJ/molrxn; there is no observable reaction when reactants are mixed. ΔG = +100 kJ/molrxn; there is no ...
  64. Chem

    For the following reaction, 21.7 grams of diphosphorus pentoxide are allowed to react with with 13.1 grams of water. What is the maximum amount of phosphoric acid that can be formed in grams? What is the FORMULA for the limiting reagent? What amount of the excess reagent ...
  65. CHEMISTRY

    1.Calculate the enthalpy change (ΔHºrxn) for the following reaction: (The enthalpy of formation of aqueous sodium hydroxide is -469.60 kJ/mol. The enthalpy of formation of liquid water is -285.8 kJ/mol.) 2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g) 2.Do you know if the...
  66. chemistry

    why do we have to round the empirical to a whole number?
  67. chemistry.

    What is the empirical formula of a hydrocarbon that contains 89,94 by mass?
  68. Chemistry

    What is the empirical formula of a hydrocarbon that contains 89.94% C by mass?
  69. Chemistry

    What is the empirical formula of a hydrocarbon that contains 89.94% C by mass?
  70. Chemistry

    Empirical formula 12.67 aluminum, 19.73 nitrogen, 67.60 oxygen
  71. Chemistry

    Calculate empirical formula C=41.7%,H=6.2%,N=19.3%, and O=33.1% Thanks. any help at all will be awesome!
  72. Chemistry

    Consider the reaction: 2 H2S(g)--><-- 2H2(g) + S2 Kp= 2.4 x 10^-4 at 1073k A reaction mixture contains .112 atm of H2,.055 atm of S2, and .445 atm of H2S. Is the reaction mixture at equlibrium? If not, in what direction will the reaction proceed?
  73. Chemistry

    Consider the reaction: 2 H2S(g)--><-- 2H2(g) + S2 Kp= 2.4 x 10^-4 at 1073k A reaction mixture contains .112 atm of H2,.055 atm of S2, and .445 atm of H2S. Is the reaction mixture at equlibrium? If not, in what direction will the reaction proceed?
  74. Chemistry

    Consider the following reaction: 2NiO (s)--> 2Ni(s) + 2O2 (g) If O2 is collected over water at 40.0 C and a total pressure of 752 mmHg, what volume of gas will be collected for the complete reaction of 25.67 g of NiO? I am struggling to set up this problem. Can anyone help ...
  75. CHEMISTRY

    In a coffee cup calorimeter 70.0 mL of 0.100 M AgNO3 and 70.0 mL of 0.100 M HCl are mixed to yield the following reaction. Ag+(aq) + Cl ‾(aq) → AgCl(s) If the two solutions are initially at 22.60°C, and if the final temperature is 23.39°C, calculate ΔH for ...
  76. chemistry

    An environmental chemist needs to determine the amount of Fe+2 ions in a simple of polluted water from a rusting industrial plant. one procedure is to analyses the sample by using solution of sodium dochromate, Na2Cr2O7. identify the oxdising agent and the reducing agent in ...
  77. Chemistry

    I’m trying to precipitate out FePO4. Following the reaction: H3PO4 + FeCl3 = FePO4(s) + 3HCl I reacted phosphoric acid to ferric chloride, and according to the reaction, there should be a precipitate. But I haven’t observed a precipitate for the last 3 hours. Is there a ...
  78. chemistry

    Using this data, 2 NO(g) + Cl2(g) == 2 NOCl(g) Kc = 3.20 X 10-3 NO2(g) == NO(g) + ½ O2(g) Kc = 3.93 calculate a value for Kc for the reaction, NOCl (g) + ½ O2 (g) == NO2 (g) + ½ Cl2 (g) A. 20.2 B. 2.06 X 10-4 C. 4.49 D. 4.84 X 10-3 E. 0.223 eliminated down to b or d but ...
  79. chemistry

    I have 3 questions that I am uncertain about. 1) what determines the order in which the coumponent elements of binary molecular compounds are written? 2) Name the Binary compound according to the prefix system for As2O5 3) write the formula for each of the binary compound for ...
  80. General Chemistry

    Balance the following redox reaction in acidic and basic solutions: Fe(OH)2(s) + O2(g) --> Fe(OH)3(s) These are the steps my instructor gave us to balance redox reactions: 1. Divide into 1/2 rxns (reduction & oxidation) 2. Balance atoms other than H & O 3. Balance O with ...
  81. Math

    Compound interest is a type of exponential growth. Now imagine that Lisa and Elicia each opened a new compound interest account. Lisa deposited $20,000 into her compound interest account. Elicia deposited $15,000 into her compound interest account. Both accounts pay 5% ...
  82. Science

    Part 1 Which of the following is a redox reaction? a. H2CO3 (aq) + 2NH3 (aq) → 2NH4+ (aq) + CO32- (aq) b. 2VO3- (aq) + Zn (s) + 8H+ (aq) → 2VO2+ (aq) + Zn2+ (aq) + 4H2O (l) d. Zn(NO) (aq) + 2NaOH (aq) → Zn(OH) (s) + 2NaNO (aq) part 2 For the redox reaction in...
  83. Chemistry

    Consider the following reaction and select the false statement below. NaI + 3HOCl → NaIO3 + 3HCl A. HOCl is the oxidizing agent B. Cl is reduced C. NaI is the reducing agent D. If ΔG° for the reaction is < 0, then NaI is a stronger reducing agent than HCl E. If...
  84. Art check please

    1. Rust on an artifact is an example of (1 point) chemical decomposition ******* chemical preservation physical decomposition physical preservation 2. What “preservation controversy” developed over the years relating to Michelangelo’s paintings in the Sistine Chapel? (1 ...
  85. AP Chemistry

    I am honestly lost on this question and you can't proceed without solving the first on, so if anyone would be so inclines to help me out Aluminum metal reacts with zinc(II) ion in an aqueous solution by the following half-cell reactions: Al(s) → Al3+(aq) + 3e− Zn2+(aq) + ...
  86. College Mathematics. 3

    (3t+1)/5=(t+7)/10+(t-5)/10 I solved this question through the linear equation simplification timing both sides by the least common denominator. 5 Once I did the the result was > 3t+1= 2t+14+2t-10 T= 3 However the real answer is t=0 Where am I going wrong? How am I supposed ...
  87. SCIENCE HELP! ONLY ONE QUESTION!

    Which of the following correctly describes how nerve impulses move throughout the body? A. Electrical transmission through neurons and elecrical transmission between neurons. B. Chemical transmission through neutrons and chemical transmission between neutons. C. Chemical ...
  88. Chemistry

    When 1.150 grams of an unknown nonelectrolyte dissolves in 10.0 grams of water, the solution freezes at -2.16°C. What is the molecular weight of the unknown compound? Kf for water = 1.86°C/m. -2.16 x m/-1.86 = 1.16 1.16/ .010 kg of water= 116 1.150/116= 9.91 g/mol is the ...
  89. chemistry

    Liquid Nitrogen tetroxide, N2O4(l), was used as a fuel in Apollo missions to the moon. In a closed container the gas N2O4(g) decomposes to nitrogen dioxide, NO2(g). The equilibrium constant,k, for this reaction is 0.87 at 55 degrees Celsius. A vessel filled with N2O4(g) at ...
  90. Grammar and Composition

    please check these: 1. Traveling down the road of life. a. sentence structure is correct b. the subject is missing c. the predicate is missing d. the sentence contains a nound and no verb B 2. Erick ran in the race. a. sentence structure is correct b. the subject is missing c...
  91. AP CHEMISTRY

    Write the formula for the following compound, being sure to use brackets to indicate the coordination sphere. A) potassium tetrabromo(ortho-phenanthroline)- cobaltate(III)
  92. chemistry

    This question is about the polymer made by polymerizing this compound: CH2=CH-CH-OH | CH Please identify the monomer unit - there should be 3... also, what type of polymerization is involved in forming this polymer? sorry - the compound is.... CH2=CH-CH-OH ________| _______CH3
  93. chemistry

    A sample of 0.6760 g of an unknown compound containing barium ions (Ba2+) is dissolved in water and treated with an excess of Na2SO4. If the mass of the BaSO4 precipitate formed is 0.1405 g, what is the percent by mass of Ba in the original unknown compound?
  94. math compound interest

    I can figure all of the other compound interest problems except these-In how many years would Ben's $100,000 take to be worth $250.000 if compounded annually at the rate of 6.5%?-Thanks and good night :)
  95. chemistry

    The following reaction can be written as the sum of two reactions, one of which relates to ionization energy and one of which relates to electron affinity: Li(g)+F(g)→Li+(g)+F−(g) What is the reaction that corresponds to the first ionization energy of lithium, Li? ...
  96. Managerial Accounting

    I have a homework problem that asks me to do the following: 1. Prepare a schedule of total cash collections for October through December. 2. Prepare a schedule of total cash disbursements for October through December. 3. Prepare a cash budget for October through December. I ...
  97. READING

    Rewrite each sentence, placing commas where they are needed. Uderline each compound subject once compound predicate twice. 1.Your bat ball and glove,_ are on the bench.= 2. The ballplayer swimmer and runner, come_ from the same town.= 3. The girl can run fast jump far_ and, ...
  98. Chemistry

    The presence of a catalyst provides a reaction pathway in which the activation energy of a certain reaction is reduced from 125 kJ·mol-1 to 75 kJ·mol-1. (a) By what factor does the rate of the reaction increase at 293 K, all other factors being equal? (b) By what factor ...
  99. biology

    1. Suppose you plant a seed and observe that a tree of large mass grows from it. The tree achieves a final mass that changes very little for years afterward. Which of the following is true about the tree? (1 point) Both anabolic and catabolic reactions took place in the seed ...
  100. chemistry

    Uranium metal can be produced by reaction of uranium tetrafluoride (UF4) with calcium metal (Ca). The by-product of this reaction is calcium fluoride (CaF2). The reactor is charged with 292.0 kg of UF4 and 47.0 kg of calcium. Assume that the reaction goes to completion. The ...
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