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

79,678 results, page 67

  1. simple interest and compound interest

    rajesh a money lender lends in the following manner. for the first year he charges 2% p.a, for the second year he charges 4% p.a, for the third year he charges 6% p.a and so on. if he lends a sum in this way at simple interest find the least integral number of years in which ...
  2. IB Chemistry

    Which statements are correct for an endothermic reaction? I. The system absorbs heat. II. The enthalpy change is positive. III. The bond enthalpy total for the reactants is greater than for the products. A. I and II only B. I and III only C. II and III only D. I, II and III ...
  3. chemistry-lab

    2.What does it mean to “follow the course of a reaction”? I would imagine it means to find the overall order of the reaction and make it in to a rate law equation. That's part of it. It can mean, in addition, to knowing any intermediates formed and how they react/decompose...
  4. Organic Chemistry

    Does anyone know where I might find a step-by-step reaction mechanism for a polymer condensation reaction involving Hexamethylenediamine with Adipoyl Chloride (thus synthesizing Nylon 66)? If not, can anyone help list the steps that take place and why? Any help would be ...
  5. organic chem

    what are some chemical reasons that might have resulted in a lower yield of a product on a grignard reaction. Something related to grignards being very reactive and since its the limiting reagent, any reaction that destroys it will result in a hit in yield.
  6. Chemistry

    What volume of gas can be produced in a lab where pressure is 16.0 psi and temperature is 25 C if you collect it over water from the reaction of 50g of ammonium sulfate with 50g of aluminum hydroxide. The equation for the reaction is: 3(NH4)2SO4 + 2Al(OH)3 ---> Al2(SO4)3 + ...
  7. scienc

    Resources: Ch. 5 of Visualizing Environmental Science and Appendix C „h Due Date: Day 2 [Main forum] „h Review Ch. 5, The Flow of Energy Through Ecosystems. Then, complete Appendix C. „h Post your response to the following: Identify the fruit or vegetable you selected ...
  8. chemistry

    Equillibrium, an example given by my textbook confused me. First it shows a reaction inside a soft drink: co2(g)--><--co2(aq) but than it says the reaction inside a soft drink would involve solubility equillibrium because it involves a change in solubility between ...
  9. Chemistry

    Identify the spectator ion(s) in the following reaction: Cu(OH)2(s) + 2H+(aq) + 2Cl–(aq) Cu2+(aq) + 2Cl–(aq) + 2H2O(l) a. Cu2+ and Cl- b. H+ and Cl– c. Cu(OH)2 d. Cl– e. Cu2+
  10. Chemistry

    Identify the spectator ion(s) in the following reaction: Cu(OH)2(s) + 2H+(aq) + 2Cl–(aq) ---> Cu2+(aq) + 2Cl–(aq) + 2H2O(l) a. Cu2+ and Cl- b. H+ and Cl– c. Cu(OH)2 d. Cl– e. Cu2+
  11. chemistry

    The Equilibrium Constant Kp for the following reaction is 4atm^2 at 300K. AB(s) -> A(g) + B(g) What is the equilibrium pressure of A(g) and B(g) above AB(s) at 300K? What is Kc at 300K?
  12. Chemistry

    Consider the following reaction: Al + HBr ---> AlBr3 + H2 . When 4 moles of Al reacts with 3 moles of HBr, how many moles of H2 are formed?
  13. chemistry

    Try to balance the following reactions by inspection. In each reaction, identify the substance reduced and the substance oxidized. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.) (a) CH4(g) + S(s) ¨ CS2(l) + H2S(g)
  14. chemistry

    Given the following list from the activity se- ries of metals (from most active to least ac- tive) K, Na, Al, Mn, Cr, Cd, Co, Pb, Hg which reaction would you NOT expect to oc- cur? 1. Na(s) +Mn2+(aq) ! Na+(aq) +Mn(s) 2. Co2+(aq) + Al(s) ! Al3+(aq) + Co(s) 3. Cd(s) + Pb2+(aq...
  15. com

    Post a 175- to 225-word response to the following question · A good paragraph has three key parts, one of which is a topic sentence. What do you think would be the reaction of a reader if the topic sentences in an essay did not align with the supporting points? Why?
  16. Question

    The line through (-2,4) that is perpendicular to the x-axis? If you are asking if the line through (-2,4) is perpendicular to the x-axis, then, yes, I think it is. Do you know why, though? Hope this helps. The line perpendicular to the X-axis through (-2,-4) would have all ...
  17. Chem

    The brown color associated with photochemical smog is due to NO2(g). This is involved with the following equilibrium in the atmosphere: 2 NO2(g) <===> N2O4. Predict the signs of the enthalpy and entropy changes for this reaction. If the equation is at equilibrium should ...
  18. Biophysical Chemistry

    The combustion of 1 mole of C2H5OH (Ethanol) in a bomb calorimeter produces 1364 kJ/mol at 25 degree Calcium. What is the value of enthalpy chamge for the following combustion reaction? C2H5OH(l) + 3O2(g) => 2CO2(g) + 3H2O(l)
  19. chemistry

    when magnesium chlorate under goes decompostion, oxgen gas is realsed in the following reaction: 2KClO3→ 2KCl + 3O2 when 3.50 grams of potassuim chlorate is decomposed at STP, how many litters of oxgen will be produced?
  20. chemistry

    magnesium chlorate under goes decompostion, oxgen gas is realsed in the following reaction: 2KClO3 → 2KCl + 3O2 when 3.50 grams of potassuim chlorate is decomposed at STP, how many litters of oxgen will be produced?
  21. english

    plz...can you explain this briefly.....the undo-able is done in the next generation. your breath moves through the family like the wind moves through the tree......tnx......
  22. Reading

    Poem "A Voice," By Pat Mora How do you interpret the speaker's statement that her mother's breath "moves through the family like the wind moves through the trees
  23. physics

    (a) A defibrillator passes 11.0 A of current through the torso of a person for 0.0300 s. How much charge moves? C (b) How many electrons pass through the wires connected to the patient? electrons
  24. SS

    How did the English overcome the Spanish Armada? A) through religious devotion B) through better military strategy C) with a larger navy D) by cutting off the Spanish food supply B
  25. English

    Which of the following statements about a subordinate clause is correct? A. There must be at least one subordinate clause in every compound sentence. B. A subordinate clause cannot stand by itself as a sentence. C. A subordinate clause must always have a single subject and a ...
  26. algebra

    The mean on a Advanced Algebra test was 78 with a standard deviation of 8. If the test scores are normal distributed, find the interval about the mean that contains 99.7% of the scores. Use the empirical rule.
  27. Algebra

    The mean on a Advanced Algebra test was 78 with a standard deviation of 8. If the test scores are normal distributed, find the interval about the mean that contains 99.7% of the scores. Use the empirical rule.
  28. Chemistry

    1. Ethanol and methyl ether have the same elements in same proportions. What is the difference between these two compounds? My guess: Ethanol has a hydroxyl group which is different from methyl ether as methyl ether contains an oxygen atom bonded to two carbon atoms. 2. Write ...
  29. Physics

    When a pair of identical resistors is connected in series which of the following is the same for both resistors: voltage across each, power dissipated in each, current through each? What about if the resistors are different from each other?
  30. Math

    Which of the following is TRUE about the line through the points (–1, 4) and (–1, 2)? Please EXPLAIN/SHOW WORK. A. The slope is undefined B. The slope is negative C. The slope is 0 D. The slope is positive
  31. Math

    Use the following information to construct a suitable rational function f(x). * There is a vertical asymptote at x=2, and a horizontal asymptote at y=3. * The graph of the function must go through the points (-4/3,0) and (0,-2)
  32. chemistry

    why is CCl4 classified as a compound?
  33. science

    What are compound and simple eyes?
  34. Algebra

    sovle the compound inequality 8<w+3<10
  35. science

    what are the uses of compound microscopes?
  36. chemistry

    define organic compound?
  37. Chemistry

    How would you name the compound P4?
  38. CHEMISTRY

    NAME OF COMPOUND- CH3CHCL2
  39. 3rd grade

    What is a compound sentence?
  40. science

    What is the definition of organic compound?
  41. math

    solve the compound inequality 4>-2x+3 or 12<-2x+5
  42. science

    what is an element, a compound and a mixture ?
  43. algebra

    solve te compound inequality 6 > -5x + 5 or 9 < - 3x + 4
  44. science

    what is the definition of a compound machine?
  45. CHEM

    Is Brass a compound or a mixture and why?
  46. chemistry

    what is the name for the compound Al2I3??
  47. Algebra

    solev the compound inequality 2x-9/8<-7 or 2x-9/8>6
  48. Math a

    7X+4>-13 or 9x+4>-23 The solution of the compound inequality is ? I am
  49. vocab

    What is a compound sentence for abnegation?
  50. chemistry

    what is the name of the compound C2H4?
  51. Chemistry

    Name this compound: H2O2
  52. math help

    solve the compound inequality < 2x-4<8
  53. college chem

    a compound containing
  54. math

    Solve the compound inequality. -3 < 2x - 3 < 5
  55. algebra

    Solve the compound inequality. 3a-5<=-2 OR 3a-5=>13
  56. algebra

    Solve the compound inequality. -2<=(n+2)/3<=4
  57. Algerbra

    How to solve the compound inequalities of. -1< 3+2x<11 1 – x >-3 or 5x-1>19
  58. Algebra

    4x7<11 or 1-x<=-2 compound inequalities
  59. cem

    What type of compound is Febr3
  60. english

    Is sandwich a compound word?
  61. algebra 2

    simplify the compound fraction: ((x+h)^(-3)-x^(-3))/(h)
  62. science

    is a polyatomic considered a compound?
  63. social study

    What is compound family
  64. Chemistry

    What is the ionic compound of SrMnO4
  65. English

    1. Do you mind my opening the window? 2. He narrowly escaped being drowned.  3. He gave up smoking. 4. He admitted having stolen the money. 5. You have to avoid being hit by a bad guy. 6.  I finished writing a composition. 7.  Sam enjoyed swimming in the swimming pool.  8...
  66. chemistry(check my answer)

    Which equation describes the relationship between the rates at which Cl2 and F2 are consumed in the following reaction? Cl2(g) + 3F2(g) yield 2ClF3(g) a)-d(Cl2)/dt = -d(F2)/dt b)-d(Cl2)/dt = 2[-d(F2)/dt] c)3[-d(Cl2)/dt] = -d(F2)/dt d)2[-d(Cl2)/dt] = -d(F2)/dt e)-d(Cl2)/dt = 3...
  67. Writing this equation

    how do I write the equation of a line perpendicular to the line 6x – 3y=10 and containing the point (-6, 2). The line you are given can have its equation rewritten im y = mx + b as: y = 2x - 10/3 That tells you that is slope is m = 2. A line that is perpendicular to that ...
  68. Chemmistry gas laws

    CH2==Ch2(g) ----> CH4(g) + C (graphite) If the decomposition begina at 10 degrees C and 50.0 atm with a gas density of 0.215 g/mL and the temperature increases by 950K, what is the final pressure of the confined gas (ignore the volume of graphite and use the van der waals ...
  69. Physics

    A power station with an efficiency of 0.4 generates 10(to the power of 8)watts of electric power and dissipates 1.5 x 10(to the power of 8) watts of thermal energy to the cooling water that flows through it. Knowing that the specific heat of water in SI units is 4,184j/kg ...
  70. Math

    Uh...Yea... Sorry about this, but I"m trying to study and I need someone to walk me through, missed a lot of school. fyi, when there's a / its under the entire string before it until you hit the inequality symbol. Tony Bowled 135 and 145 in his first two games. Write and solve...
  71. english

    I need help on Eve Merriam (she is a poet). I have to answer the following questions: 1)Does the poet display similar themes in many different poems? Describe any reoccuring themes. 2)What was going on in the poet's lifetime? Did the time period the poet lived in influence his...
  72. english

    The following sentence illustrate several kinds of nonparallel constuction. Rewrite the sentence to achieve parallelism. If you insist on reading the Old Testament all the way through and to do the same with the New Testament, you are in for some big surprises. Would you write...
  73. Chemistry

    A sample of magnesium with a mass of 1.00 g is burned in oxygen to produce an oxide with a mass of 1.66 g. What is the empirical formula of the magnesium oxide produced? I know the answer is MgO. What are the steps to get that answer?
  74. chemistry

    What is formed at the anode and cathode when the following solutions are electrolysed? sodium iodide copper II chloride sodium sulphate NaOH HCl magnesium nitrate also is this true: if the metal in the compound is higher in the reactivity series than hydrogen then hydrogen is ...
  75. chemistry

    What is formed at the anode and cathode when the following solutions are electrolysed? sodium iodide copper II chloride sodium sulphate NaOH HCl magnesium nitrate also is this true: if the metal in the compound is higher in the reactivity series than hydrogen then hydrogen is ...
  76. Physics

    Which of the following equations describes the condition for observing the fourth bright fringe in Young's double-slit interference pattern? Assume n = 0 for the central bright fringe. Which of the following equations describe the condition for observing the fourth dark fringe...
  77. Math (Mrs. Sue, please help?)

    A system of equations is given below: y = 3x + 4 2x + 3y = 10 Which of the following steps could be used to solve by substitution? (4 points) 3x + 4 = 2x + 3y 2x + 3(3x + 4) = 10 2(3x + 4) + 3y = 10 3(y = 3x + 4) (I don't understand this at all and I've read through the module...
  78. math

    A ship left at 9:00 am going 10 miles per hour on a course. Another ship left at noon on the same course going 15 miles per hour. At what time did the second ship overtake the first ship?
  79. Dr.Bob, response to your reply to last answer

    Sorry, I didn't see this. Actually you have only one mixture; it happens to have two components. There is a more or less standard procedure for separating complete unknowns (that's where you know nothing about it) and if you know nothing about it that is where you start. You ...
  80. Math

    Each day the wildlife commission releases 100 fish into the Durkee river in the following proportions: 55 brown trout and 45 rainbow trout. All of the fish swim through a watch station, one at a time, on the way upstream. Which of the following expressions represents the way ...
  81. Math, Help

    I am lost with these two problems... Problem #1 Write a sample space for the given experiment A box contains 3 blue cards numbered through 3, 4green cards numbered through 4. A blue card is picked , followed by a green card. Problem #2 Write the indicated even in set notation ...
  82. chem

    I got through the first part easily, got -352.9kJ Having trouble with the second part "The meals-ready-to-eat (MREs) in the military can be heated on a flameless heater. The source of energy in the heater is shown below. Mg(s) + 2 H2O(l) Mg(OH)2(s) + H2(g) Calculate the ...
  83. English

    After we put an egg in a glass, when we add salt, the egg goes up from the bottom. Which of the following expressions is correct. 1. The egg is moving up from the bottom. 2. The egg is floating up from the bottom. 3. The egg is going up from the bottom. [Which one is correct? ...
  84. Chemistry II

    The enthalpy of neutralizatino for the reaction of a strong acid with a strong base is -56 kJ/mol of water produced. How much energy will be released when 230.0 mL of 0.400 M HCl is mixedwith 150.5 mL of 0.500 M NaOH? How much water is produced in the reaction? How do I figure...
  85. maths(variation)

    pls when solving finish it up!!! Very urgent! 1) the load which a crame can lift up is directly proportional to the mass and inversely proportional to the height through which the load is to be lifted.if a load of 40 and mass of 175gm is lifted through height from what load ...
  86. CHEM

    A gaseous hydrocarbon (an organic compound consisting of C & H) weighing 0.232g occupies a volume of 102mL at 23 degrees Celcius and 749mmHg. Calculate the molar mass and identify the compound. The compound is: a)C2H4 b)C3H6 c)C4H8 d)C5H10 e)C6H12 How is this problem worked ...
  87. chemistry

    When the following combustion reaction is balanced using the smallest whole number coefficients, determine the coefficients for oxygen: C(5)H(10)0(2) is reacted with oxygen gas. First of all post the equation with no coefficients.
  88. chemistry

    The following reaction occurs in a 2.0L reactor at 800 degrees c. CO+H20-CO2+H2 The reactor is charged initially with 5.0 atm of CO and 8.0 atm of water vapor. Calculate the final pressure of hydrogen in the reactor.
  89. physics

    Identify the force that propels a rocket. 1)The rocket is propelled by the reaction force of the exhaust gasses bouncing off the air molecules outside the rocket. 2)The rocket is propelled because the action force of the rocket on the exhaust gases is greater than the reaction...
  90. physics

    Identify the force that propels a rocket. 1)The rocket is propelled by the reaction force of the exhaust gasses bouncing off the air molecules outside the rocket. 2)The rocket is propelled because the action force of the rocket on the exhaust gases is greater than the reaction...
  91. health

    I want to kill myself im 13 about to turn 14 and already getting grey hair im so stressed I have to keep my company going I have to keep my grades b or higher I have to chose between 2 girls I have to chose If I want to go into the military (my uncle is making me chose he's in...
  92. Statistics

    1. For the following exercise, complete the following: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of thumb for each of the data sets. c. Compare the two sets and describe what you discover. The following ...
  93. Chemistry

    Decomp. of H2O2 with Catalase.I am trying to use the Arrhenius equation in my coursework, but i am struggling to get it to work. I have substituted most of the information in, such as activation energy(23000J), and gas constant(8.314x10-3) etc. The issue is "A" which is the ...
  94. Chemistry

    A metal forms an oxide with the general formula MO2 with a deltaHf=-580.7 kJ/mol. Using the Born-Harber Cycle and the following information, determine lattice energy for the compound. Metal Information: deltaHsubl=302 kJ/mol, IE1=708.6 kJ/mol, IE2=1412 kJ/mol, IE3=2943 kJ/mol...
  95. EMT-Basic

    You are called to the scene of a 25-year-old female who is unconscious. Her husband suspects she may have overdosed on an unknown drug. He is visibly upset and may have been crying. How should you handle the husband upon arrival? A. Ask him to step out of the room so you can ...
  96. Science

    A researcher wants to develop a new pharmaceutical compound to treat pain. Which of the following strategies will likely be the most effective process? A. Test extracts from newly discovered plants for pain-killing substances. B. Read anthropological studies to discover plants...
  97. 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 ...
  98. 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 ...
  99. precalc

    write an equation to match each description. 1) a snowball is 8 cm across and melting so that its diameter is decreasing at a steady rate of 0.2 cm/min. write an equation for d(t), the length of the snowball's diameter at time t. answer: d(t)=8-0.2t 2) horizontal line through...
  100. Chem

    Carbonyl fluoride, COF2, is an important intermediate for organic fluorine compounds. It can be prepared by the following reaction: CO2(g) + CF4(g) <==> 2COF2(g) At 1000*C, K for this reaction is .50. What are the partial pressures of all the gases at equilibrium when ...
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