1. 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

    asked by Victor on April 7, 2017
  2. chemistry

    write a balanced chemical equation for calcium nitate plus sulfuric acid produces calcium sulphate and ? This is a metathetical reaction, I think more properly called a double displacement reaction now. Just change + and - partners. Ca(NO3)2 + H2SO4 ==>

    asked by walter on August 9, 2007
  3. chemistry

    The given reaction, cyclopropane propene (isomerization), follows first-order kinetics. The half-live was found to be 4.57 min at 796 K and rate constant was found to be 0.0328 s-1 at 850 K. Calculate the activation energy (in kJ/mol) for this reaction.

    asked by bobjahng2 on November 23, 2010
  4. Chemistry

    I am not sure about this question I tried a) but am very confused with b. Experiments were preformed with four metals and solutions of their ions: A- A+, B-B2+, C-C2+, D-D2+. The results of the experiment were: D2+ + C --> No reaction B2+ + C --> B + C2+

    asked by Lynn on March 19, 2010
  5. Chemistry 1

    Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to sweat, and it is determined that the heat of vaporization of its sweat is 215 cal/g. The scientist observing the

    asked by Molly on January 24, 2014
  6. Chemistry

    Why is a change in temperature also considered a sign of a chemical change? When molecules move around more frequently due to the temperature change, they are more likely to collide with other molecules. When bonds are broken or formed in a chemical

    asked by Quinn on November 30, 2018
  7. Chemistry

    Explain using electron-pushing arguments why glycolysis must go through G6P to F6P step (C1 aldehyde to C1 ketone). Focus on the subsequent aldolase-catalysed reaction and explain why glucose 1,6 bisphosphate would not be able to go through the aldolase

    asked by Max on October 19, 2013
  8. Applied physics

    the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and chlorine are added to a 5.0L reaction vessel, what is the equilibrium composition of the mixture at 230 degrees celcias?

    asked by jose souljoe on March 28, 2012
  9. chemistry

    The rate constant of the reaction between CO2 and OH - in aqueous solution to give the HCO3- ion is 1.5 1010 1/(M·s) at 25°C. Determine the rate constant at blood temperature (37°C), given that the activation energy for the reaction is 38 kJ/mol. units

    asked by parker on June 12, 2012
  10. Chemistry

    If there was a reaction between organic compounds: OH + Cl --> O + HCl, how would I determine which atoms is the nucleophile (O, Cl, or H)? Here is a picture of the reaction: img33.imageshack.us/img33/3923/29529709.jpg From my understanding, a nucleophile

    asked by Hatala on July 14, 2009
  11. Chemistry

    Explain why each of the following is incorrect: (a) Entropy increases in all spontaneous reactions. Wouldn't (a) be actually correct? Because when there's a spontaneous reaction, you have less stable molecules and more disorder. It will be lower in some

    asked by Robert on May 23, 2012
  12. applied chemistry

    the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and chlorine are added to a 5.0L reaction vessel, what is the equilibrium composition of the mixture at 230 degrees celcias?

    asked by jose souljoe on March 28, 2012
  13. Chenistry check

    Can someone check my answer? The question is: In order for the reaction 2Al(s) + 6HCl(aq)-> 2AlCl3(aq) + 3H2(g) to occur, which of the following must be true? a. Al must be above Cl on the activity series. b. Al must be above H on the activity series. c.

    asked by Mike on March 17, 2009
  14. Chemistry

    What are the Oxidation and Reducation reactions for these equations : BaCl2 + NaHCO3 -> BaCO3 + NaCl + HCl (carbon is the reduction reaction, but I don't know what the oxidation reaction is) CaCO3 + HCl -> CaCl2 + CO2 + H2O

    asked by K on May 19, 2013
  15. Chemistry

    Explain using electron-pushing arguments why glycolysis must go through G6P to F6P step (C1 aldehyde to C1 ketone). Focus on the subsequent aldolase-catalysed reaction and explain why glucose 1,6 bisphosphate would not be able to go through the aldolase

    asked by Max on October 19, 2013
  16. Chemistry

    Is the decomposition of lead(ii)nitrate a redox reaction? Equation with O.S. underneath 2Pb(NO3)2 => 2PbO + 4NO2 + O2 +2 -1 +2-2 +4-2 0 I got all the o.s. but I am still confused as to whether or not this makes it a redox reaction. Do the individual

    asked by Faith on October 13, 2015
  17. mechanics

    a non uniform rod ab of length 4 m and mass 5 kg is in equilibrium in horizontal position resting on two supports at point C and D wgere AC= 1 m and AD= 2 m. the magnitude of reaction at C is half of the reaction at D. Find the distance of the centre of

    asked by sufyaan on April 17, 2011
  18. chemistry

    The activation energy for the reaction in which CO2 decomposes to CO and a free radical oxygen atom, O, has activation energy of 460 kJ mol^-2. The frequency factor is 2 x 1011 s^-1. What is the rate constant for this reaction at 298 K?

    asked by Massiel on March 20, 2011
  19. Chemistry-Please help

    2C8H18(g)+25O2(g)+16CO2(g)+18H2O(g) 0.290mol of octane is allowed to react with 0.600mol of oxygen.The limiting reactant is Oxygen. How many moles of water are produced in this reaction? After the reaction, how much octane is left?

    asked by Rose on October 5, 2009
  20. chemistry

    A 2.30 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400°C. After equilibrium was established, it was found that 20.0 percent of the NOCl had dissociated: 2NOCl(g) 2NO(g) + Cl2(g) Calculate the equilibrium constant Kc for the

    asked by Anonymous on March 17, 2011
  21. Chemistry-Please help

    2C8H18(g)+25O2(g)-->16CO2(g)+18H2O(g) 0.290mol of octane is allowed to react with 0.600mol of oxygen.The limiting reactant is Oxygen. How many moles of water are produced in this reaction? After the reaction, how much octane is left?

    asked by Rose on October 5, 2009
  22. Chem

    Calculate the reaction quotient Q,for the cell reaction.The measured cell voltage is given.balane the chemical equation by using the smallest whole number coefficients. (a) Pt(s)Sn4+(aq),Sn2+(aq)||pb2+(aq),pb2+|C(graphite)(s) -E=+1.33V

    asked by Prisca on February 10, 2013
  23. chemistry

    How do you figure out the answer for the reverse reaction? At 350 K the value of Kp for the equilibrium represented by the balanced equation is 2.87 x 10-2. Calculate the value of Kc for the reverse reaction at the same temperature. Express answer in

    asked by andy on April 13, 2010
  24. biology

    Which of the following is true about the relationship between energy and chemical reactions? Activation energy is required for a chemical reaction to occur. Activitation energy is not necessary in a chemical reaction which releases energy. Chemical bonds

    asked by ballamoney1 on April 15, 2010
  25. English

    1.All of the balloons on the string (popped) except two. 2.Do you (want) to buy those books? 3.Daniel's dog is (following) the trail to the river's edge. 4.For thirty years the noon whistle has (blown) exactly on time. 5.The players have (challenged) their

    asked by Hayley on January 28, 2011
  26. Spanish (Please Help)

    1. Write the verb form for: yo/hacer. 2. Write the verb form for: ellos/hacer. 3. Write the verb form for: nosotros/hacer. I'm not sure, but I think these are the answers: 1.) Hago 2.) Hagan 3.) Hagamos Thnk You.

    asked by Brendon on January 24, 2013
  27. math

    1. the speed of light is 8.0x^8m/s in standard form that is? 2. the average size of a virus is 2x 10^-10 nanometers in diameter. how to write the number(s) given scientific notation in standard form. thank you

    asked by melves on May 20, 2013
  28. math

    A cat can walk 2,190 miles in 2 hours. How can 2,190/2 be written in expanded form? 1) 2,000+100+90/2 2)200+90+1/2 Write it in quotation form.

    asked by ray on January 5, 2016
  29. Analytic Geometry/Calculus

    We didn't go over the perpendicular form in class, only the parallel. Find the general form of the equation of the plane passing through the point and perpendicular to the specified vector or line.

    asked by Arya on April 8, 2013
  30. Mat 117

    •I am having trouble figuring out this question. Why is (3x + 5) (x - 2) + (2x - 3) (x - 2) not in factored form? Show specifically how to find the correct final factored form. What is this factoring method called? Please help. Thank you.

    asked by G on May 23, 2011
  31. Chemistry

    Consider the following reaction: 4NH3(g) +5O2(g) -->4NO(g) +6H2O(g) Suppose we have two flasks connected by a stopcock. In one flask, we have 2.0L of NH3(g) at a pressure of .500 atm. In the other flask, we have 1.00L of O2(g) at a pressure of 1.5atm. When

    asked by Claire on October 29, 2014
  32. Math Algr.2

    Convert to standard form (AX+BY=C) 1.y=3/2x+6 2. 2/3y=2x-5 3.7y-21=1/2x 4.-2/3x+3/4y=1 Convert to Slope/intercept form (y=mx+b) 1.3x-27=14 2.-9y-6x-18=0 3.8-2x+4y=0 12x=4y-8 I need help going through this because I am not sure if I am doing everything

    asked by Hannah on November 6, 2012
  33. Pre-Cal

    Find the component form of v given its magnitude and the anlge it makes with the positive a-axis. v=3 v in the direction 3i + 4J Would the component form be (3,4)?

    asked by Hannah on March 28, 2010
  34. Parabola

    How do I put this parabola in standard form? Could someone show how they would put it in this form: (x - h)2 = 4p(y - k) 1. 4x^2+24x+128y-988=0 Please help! I'm lost.

    asked by Kate on May 25, 2012
  35. Calculas

    Write the equation for a line in point slope form and in slope intercept form parallel to 3x-4y=12 and passes through (8,3).

    asked by Edgar Martinez on August 8, 2016
  36. computer science

    In form view you can view a forms records but cannot change the layout or design of the form true or false

    asked by Anonymous on September 26, 2013
  37. math

    write the equation for a line in point-slope form and in slope-intercept form. parallel to 3x-4y=12 and passes through (8,3).

    asked by nancy on August 16, 2009
  38. pre-calculus

    convert the numbers to polar form and then divide.leave the answer in polar form. 10-10i/3root3+3i

    asked by javed on December 3, 2008
  39. trigonometry

    1)Solve and write in standard form: 4x^2-4x+21=0 2)Find the standard form of the complex number. 8(cos pi/2 + i sin pi/2) Thanks everyone!

    asked by mikey on December 3, 2012
  40. Chemistry

    Given the two reactions 1.PbCl2 Pb^2+ + 2 Cl^-, K1= 1.82×10^−10 2. AgCl Ag^+ + Cl^-, K2 = 1.15×10−4 what is the equilibrium constant Kfinal for the following reaction? PbCl2+ 2 Ag^+ 2AgCl+ Pb^2+ This is what i have soo far: PbCl2Pb2+ + 2Cl- K1=

    asked by Saira on February 5, 2009
  41. 3rd grade math

    what is standard form ? and What is expanded form ?

    asked by brianna on August 16, 2011
  42. grade 12 chemisstry

    I have no idea what I'm doing here, please help. 2 half cells in a galvanic cell consist of one iron Fe(s) electorde in a solution of iron (II) sulphate FeSO4(aq)and a silver Ag(s) electrode in a silver nitrate solution, a)state the oxidation half

    asked by Sarah H on June 3, 2008
  43. chemistry

    Am doing a lab report on the determination of the product of a redox reaction: the reaction of bromate and hydroxylammonium ions. here is the lab Experiment: In this experiment you will determine the equation of a redox reaction by the use of experimental

    asked by khela on October 26, 2010
  44. Chem. Again

    28: You have a glass of pure water. Are chemical reactions occurring in the water? If so, what are they? If not, explain why not. 29: While investigating the effects of acid rain in your area, you discover a lake that is surprisingly resistant to changes

    asked by Rachel on May 12, 2009
  45. health

    What is physical stress? A. A physical reaction of the mind to various triggers B. A physical reaction to the heart to various triggers C. A physical reaction of the body to various triggers D. A physical reaction of the soul to various triggers What is

    asked by Aya on August 6, 2012
  46. physics-please check

    is this right?: when a form of energy changes from one form to another some energy may transfrm into a useful form, those useful form of energy is high grade energy.while the rest of the energy will always change to form we cannot use.which is called the

    asked by Emma on May 14, 2007
  47. Chemistry - Equilibrium

    (h) If a catalyst was added to the reaction, which quantities would change? (Select all that apply.) - the potential energy of the products - the potential energy of the reactants - the potential energy of the activated complex -the activation energy for

    asked by Taylor on May 17, 2015
  48. biology help?

    In 1857, Louis Pasteur discovered that yeast is a living organism. The activity of yeast causes fermentation – baker’s yeast, Saccharomyces cerevisiae, has been used for centuries in the production of bread, beer and wine. In the absence of oxygen,

    asked by sam on February 15, 2013
  49. chemistry

    An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H+ were produced. What is the ratio of TRIS base to TRIS acid at

    asked by alan on February 2, 2008
  50. chemistry lab

    An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H+ were produced. What is the ratio of TRIS base to TRIS acid at

    asked by alan on February 2, 2008
  51. chemistry

    In the experiment you have added 50.0 mL of Ni(H2O)6 2+ to the calorimeter. To this you add 5.0 mL of ethlylenediamine and measure the change in temperature of the solution as the reaction proceeds. The temperature increases by 3.4 oC. Calculate the

    asked by Barb on April 9, 2013
  52. Chemistry

    What type of reaction may be occurring when a person's skin develops a green stain beneath a 14 K gold bracelet? Using HA as the chemical formula for acid in skin, write a balanced chemical equation to represent the reaction.

    asked by Lucy on March 7, 2009
  53. Chemistry

    Consider the reaction 2 SO2(g) + O2(g) in equilibrium with 2 SO3(g) . At 25°C delta H° = -197.78 kJ and delta S° = -187.95 J/K. Using this information, calculate the equilibrium constant for the reaction at -32°C. (R = 8.314 J/K) Enter your answer

    asked by Bill on November 16, 2014
  54. Chemistry

    A student ran the following reaction in the laboratory at 651 K: 2 NH3(g) N2(g) + 3 H2(g) When she introduced 8.75E-2 moles of NH3(g) into a 1.00 Liter container, she found the equilibrium concentration of H2(g) to be 0.119 M. Calculate the equilibrium

    asked by Jessica on November 19, 2013
  55. Chemistry

    A student ran the following reaction in the laboratory at 650 K: H2(g) + I2(g) 2 HI(g) When she introduced 0.204 moles of H2(g) and 0.229 moles of I2(g) into a 1.00 Liter container, she found the equilibrium concentration of I2(g) to be 5.77E-2 M.

    asked by Jessica on November 19, 2013
  56. Chem

    The entropy of combustion of benzoic acid is zero. This means that... a)combustion is not spontaneous here. b)combustion is spontaneous, however, since the reaction is exothermic. c)combustion is spontaneous, however, since the reaction is endothermic.

    asked by Ginger on March 31, 2008
  57. Physical Science

    Hi! Thanks for checking my question out! ____ 1. Methane, CH4, burns in oxygen gas to form water and carbon dioxide. What is the correct balanced chemical equation for this reaction? (1 point) a) CH4 + O --> H2O + CO2 b) CH4 + 4O --> 2H2O + CO2 c) CH4 + O2

    asked by Da Fash on November 14, 2017
  58. Chemistry Equation

    1) Write the equation for the reaction associated with the Ka2 of sulfuric acid, H2SO4. 2)Write the equation for the reaction associated with the Kb2 of carbonate, CO3^(2-).

    asked by Mizuhara on October 13, 2014
  59. Chem

    Consider the following reaction was found to be the 0th order to A and 2nd order to B. 2A(cr) + 3B(aq) -->A2B3(cr) Write a rate law equation for the reaction rate of A with B.

    asked by Anonymous on January 29, 2008
  60. chemistry

    Consider the reaction: 2H2S(g)⇌2H2(g)+S2(g) An equilibrium mixture of this reaction at a certain temperature was found to have [H2S]= 0.542M , [H2]= 2.64×10−2M , and [S2]= 7.54×10−3M . What is the value of the equilibrium constant at this

    asked by Anon on December 5, 2014
  61. Chem15

    The reaction CO(g) + H2O(g)--> CO2(g) + H2(g) has Kc = 102 at 500 K. If a reaction mixture initially contains 0.154 M CO and 0.154 M H2O, what will be the equilibrium concentration of H2?

    asked by Ryan on May 2, 2011
  62. chemistry

    The enthalpy change for the following reaction is -483.6 kJ: 2H2(g) + O2(g) = 2H2O(g) Therefore, the enthalpy change for the following reaction is _______ kJ: 4H2(g) + 2O2(g) = 4H2O(g)

    asked by danny on January 31, 2015
  63. chemistry

    For the following reaction, 2SO3(g) = 2SO2(g) + O2(g), the equilibrium constant, Kp, is 1.32 at 627 degrees Celsius. What is the equilibrium constant for the reaction: SO3(g) = SO2(g)+ 1/2 O2(g)

    asked by Erka on July 22, 2012
  64. Chemistry

    Write the equation for the reaction associated with the Ka2 of sulfuric acid, H2SO4. Write the equation for the reaction associated with the Kb2 of carbonate, CO32–.

    asked by Darrin on January 27, 2013
  65. Chem II

    The rate constant for a reaction at 305.0 K is two times the rate constant at 295.0 K. The activation energy of the reaction is ______ kJ mol

    asked by Ken on June 13, 2008
  66. chemistry

    what mass of acetylene, C2H2, will be produced from the reaction of 90 g of calcium carbide, CaC2, with water in the following reaction? CaC2+2H2O-->C2H2+Ca(OH)2

    asked by Samantha on May 28, 2012
  67. Chemistry

    Write the equation for the reaction associated with the Ka2 of sulfuric acid, H2SO4. Write the equation for the reaction associated with the Kb2 of carbonate, CO32–.

    asked by Jessica on January 27, 2013
  68. chemistry

    The percentage yield for the reaction PCL3+Cl2-->PCL5 is 83.2%. What mass of PCL5 is expected from the reaction of 73.7g of PCL3 with excess chlorine?

    asked by Brennan on January 13, 2015
  69. chemistry

    If delta G (Gibbs) is positive and you are trying to find at what temperature the reaction is spontaneous would the formula be: T< H/S ? G=H-TS H-TS>0 T< H/S then the temperature found would be the temp at which the reaction is spontaneous?

    asked by alice on February 11, 2018
  70. science

    Explaini why the observation if a preciiitate forming may be evidence of a chemical reaction.What other evidence would youneed to gather to be sure that a chemical reaction has taken place?

    asked by Jiang on January 18, 2012
  71. organic chemistry

    Hi, I was wondering if somebody could help me out with this problem which says: "Why does changing the base have no effect on the rate of an E1 reaction while it does affect the rate of an E2 reaction?" I would appreciate any help I can get on this

    asked by manny on November 10, 2007
  72. Chemistry

    Calcium reacts with water according to the chemical equation below: Ca + 2H2O--> Ca(OH)2 + H2 All but which reaction is expected to occur on the basis of the reaction of calcium and water?

    asked by Chelsea on October 25, 2011
  73. Chemistry

    Calcium reacts with water according to the chemical equation below: Ca + 2H2O--> Ca(OH)2 + H2 All but which reaction is expected to occur on the basis of the reaction of calcium and water?

    asked by Chelsea on October 25, 2011
  74. Math

    1. The expression 6x(4-3x)–5x(x–4)–9x+2) can be written in the form ax^2+bx+c. The value of abc is? 2. A rectanglular garden is being designed for the City of Calgary Park. The length is 3x+5 and the width is 2x–1. The area of the garden can be

    asked by Mileena on March 19, 2017
  75. Math

    The flat fee of a cab is $3.50 plus an additional $2.25 every mile. b. Write an equation in slope-intercept, point-slope, or standard form. Explain why you chose the form you did What does that mean?

    asked by IWouldAlwaysOpenUpTheDoor on December 10, 2017
  76. math

    Solve for x 2^x+1 - 2^x = 112 Put this in exponent form: (3¡îx)(¡îx©ø) Put into equation form: Horizontal stretch of 2, up 3, left 6, reflection on x-axis. Please help me with these three so I can work on the rest using these as examples. Thanks so

    asked by Nancy on April 18, 2013
  77. Chemistry

    The chemical reaction for the generation of gas in an automobile safety air bag is 2NaN3(s)→ 2Na(s)+3N2(g) What volume of gas is produced if there are 130.0 grams of NaN3 used in the reaction? (The density of nitrogen gas is 0.916 g/L.) Please show your

    asked by Kayla on March 31, 2014
  78. Chemistry

    Which phosphates are found in human urine? I am writing about the discovery of phosphorus. I know that after urine was left to stand for several days and boiled to a paste it contained ammonium sodium hydrogen phosphate. Is this a constituent of fresh

    asked by Alice on January 4, 2009
  79. Chemistry

    MF17083:For the following reaction find Kp at 25°C and indicate whether Kp should increase or decrease as the temperature rises. NH4HS(s) H2S(g) + NH3(g); DH° = 83.47 kJ and DG° = 17.5 kJ at 25°C. - A. B. C. D. E. F. Kp = - A. B. C. D. E. F. Kp

    asked by Chris on April 27, 2007
  80. Chem

    Suppose that a stable element with atomic number 119, symbol Wr, has been discovered. (d) What would be the most likely charge of the Wr ion in stable ionic compounds? (e) Write a balanced equation that would represent the reaction of Wr with water. (f)

    asked by Dave on October 21, 2012
  81. English

    1. Today, millions of people have one form of religion, and their neighbors a different one. 2. Today, millions of people have one form of religion, and their neighbors a different religion. 3. Today, millions of people have one form of religion, and their

    asked by rfvv on July 19, 2014
  82. math

    The disney Golf classic starts with 64 golfers. the golfes form pairs and each pair plays amtch. the losers drop out nad the winners of each pair then form new pairs and play again. Then those winners form pairs and play. this continues until there is one

    asked by Alejandro on May 1, 2011
  83. chem lab

    0.8100g MgO(s)(40.3g/mol) was reacted with 52.3 ml 1.00M HCl(density= 1.00g/ml) in the coffee cup calorimeter, and the observed temperature change was +10.4 degree Celsius. write the equation for this reaction, determine the limiting reactant and find

    asked by mann on February 12, 2014
  84. Chemistry

    The equation of a simulated photosynthesis reaction is represented by 6CO2(g) + 6H2O (g) -> C6H12O6(s) + 6O2(g) At 31 degree celcius, tje following equilibrium concentration were found [H2O] = 7.91X10^-2M [CO2]= 9.30X10^-1M [O2]= 2.40X10^-3M Determine the

    asked by Lee on October 26, 2018
  85. Chemistry

    A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium concentration of FeSCN2+ ([FeSCN2+]std) for this standard solution is assumed to be M. What permits this assumption? A. The

    asked by Neil on June 20, 2011
  86. science

    humidity is the amount of water vapor in the air at a given time.if the air at 75 degrees holding the maximum amount of moisture that it can,and the temperture suddenly drops to 60degrees,what is likely to be the result? a)precipitation will be released in

    asked by yaz on October 11, 2007
  87. English

    1.All of the balloons on the string (popped) except two. 2.Do you (want) to buy those books? 3.Daniel's dog is (following) the trail to the river's edge. 4.For thirty years the noon whistle has (blown)exactly on time. 5.The players have (challenged) their

    asked by Tracy on January 25, 2011
  88. chemistry plz helpp!

    A) 9.8g of an alcohol A completely reacts with an excess of sodium , and a gas is released. When the reaction ceases the volume of the gas is 1.6L measured at a temperature of 22ºc and under a pressure of 1 bar.  a- What gas is released in this reaction,

    asked by angy on June 28, 2016
  89. chemistry

    A) 9.8g of an alcohol A completely reacts with an excess of sodium , and a gas is released. When the reaction ceases the volume of the gas is 1.6L measured at a temperature of 22ºc and under a pressure of 1 bar. a- What gas is released in this reaction,

    asked by angy on June 28, 2016
  90. chemistry

    A gaseous mixture containing 5 moles of H2 and 7 moles of Br2 reacts to form HBr. Write a balanced chemical equation. Which reactant is limiting? What is the theoretical yield in moles? What is the theoretical yield for this reaction in grams? How many

    asked by Zoe on December 4, 2011
  91. chemistry

    The reaction A + B to C + D is second order in A and zero order in B. The value of k is 1.10×10−2 M^{-1}\;min^{-1}. What is the rate of this reaction when A}]=0.124 M and B}]=3.89 M?

    asked by joe on February 28, 2010
  92. chem intro

    The rate of the following reaction is 0.90 M/s. What is the relative rate of change of each species in the reaction below? A + 3B --> 2C

    asked by Cal on September 10, 2015
  93. Chemistry

    A certain reaction has an equilibrium constant of 0.65. Calculate the constant for the reverse reaction.

    asked by Hannah on November 23, 2014
  94. chemistry

    The reaction A + B to C + D is second order in A and zero order in B. The value of k is 1.10×10−2 M^{-1}\;min^{-1}. What is the rate of this reaction when A}]=0.124 M and B}]=3.89 M?

    asked by joe on February 28, 2010
  95. chemistry

    Cu2+ + 2e- -> Cu Oxidation reaction Cu -> Cu2+ + 2e Reduction Reaction Do I have these right, or are they backwards?

    asked by kat on May 9, 2016
  96. Chemistry

    Given 1.01 g of H2 in the reaction H2 + 1/2 O2 = H2O. The Delta H for solution is 143 kJ. What is the delta H for the reaction?

    asked by Roger on October 20, 2012
  97. chemistry

    the rate of the following reaction is 0.72 M/s. what is the relative rate of change of each species in the reaction? A+4B -> 2C

    asked by Anonymous on February 28, 2013
  98. Chemistry

    If 60% of a first order reaction was completed in 60 minutes, 50% of the same reaction would be completed in approximately

    asked by sam on May 29, 2015
  99. chem

    what effect does concentration have the reaction time and what effect does it have on the reaction rate?

    asked by arnold on January 7, 2012
  100. algebra

    Use the given conditions to write an equation for the line in point'slope form and slope-intercept form. Slope= -5, passing through (-9,-6) type the point-slope form ot the line Type the slope-intercept form of the line

    asked by craig on June 6, 2011