1. phySICS NEED HELP ASAP

    Sally the bug has an initial speed of 20.0cm/s. She then accelerates at 8.00cm/s^2 for 5.00s. calculate sallys total displacement? which i did and got 200 cm Displacement during the 5th second? can you please help and show all work

    asked by sarah on January 7, 2015
  2. Chemistry

    The decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI with a rate constant of 1.20E-4 Ms-1. If the initial concentration of HI is 0.575 M, the concentration of HI will be 0.116 M after how many

    asked by kait on March 22, 2014
  3. physics

    I'm very confused. What is the range of an arrow shot horizontally at 85.3 m/s if it is initially 1.5m above the ground? I'm guessing 1.5 is delta Y and initial velocity at 85.3 m/s and final velocity at 0 m/s. I just don't understand how I'm supposed to

    asked by yeh on September 16, 2008
  4. Physics

    A stone is thrown from ground level at 72 m/s. Its speed when it reaches its highest point is 46 m/s. Find the angle, above the horizontal, of the stone's initial velocity. Answer in units of degree

    asked by Jordan on October 6, 2015
  5. Physics

    You shoot a rocket straight into the air from the ground.It takes 8.0 seconds to come back down to the ground.What was its initial velocity ? Vf^2=Vi^2+2ax 0=vi^2+2(-9.8)(8.0)

    asked by Anonymous on December 7, 2012
  6. America Governmetn

    historian Henry Adams argues that declining quality of president since Washington disproves the theory of evolution. If the initial president were wrong, why did congress dominate even at that time?

    asked by ee on November 22, 2008
  7. physics

    Calculate the distance traveled by the concrete brick after 0.5 s if it moves with an initial speed of 5 ft/s up the incline whose angle of inclination with the horizontal is 300. Given, coefficient of friction of the incline is 0.144 and g = 32 ft/s2

    asked by ajay on April 6, 2012
  8. physics

    An apple of mass 0.1kg is thrown from a 123 meter high building at an angle of 45 degrees with an initial velocity of 5. How long does it take for the apple to hit the ground? (assume g = 9.8 m.s-2)

    asked by JJ on August 2, 2011
  9. physics

    A man skis down from the top of a hill 1500.0 m high, starting from rest. If he loses 50% of his initial mechanical energy to friction during his descent, what is his speed in m/s at the base of the hill?

    asked by fun on November 5, 2014
  10. counseling

    During the initial session, counselors should be sure to assess clients for each of the following problems except for a. if there is an actual plan. b. the availability of the method and the degree to which the method is lethal. c. past, present, and

    asked by cudy on July 24, 2016
  11. Chemistry

    The decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI with a rate constant of 1.20E-4 Ms-1. If the initial concentration of HI is 0.575 M, the concentration of HI will be 0.116 M after seconds have

    asked by kait on March 22, 2014
  12. Grammar

    The patient was admitted to the floor for abdominal pain and diarrhea, initial diagnosis was a possible small-bowel obstruction. A) complete sentence B) fragment C) run-on Seems like C would be the best answer as a run-on

    asked by Marie on October 9, 2012
  13. Physics

    ______1. Which of the following is NOT true about a stone dropped from the third floor of the high school building? A. It is a free-falling object. B. It accelerates at the rate of 9.8 m/s2. C. It decelerates at the rate of 9.8 m/s2. D. Its initial

    asked by Joshua on November 29, 2010
  14. physics

    A soccer ball leaves the foot of a player with an intitial velocity of 22 m/s at an angle of 30 degrees above the positive x-axis. What is the initial velocity in the x-direction? Two sigfigs Remember...no units...but it would be in m/s

    asked by mark on September 7, 2012
  15. Physics

    A 65.0 kg skier with an initial speed of 11.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top, given that the coefficient of friction between her skis and the snow is 0.0800.

    asked by Andrew on February 22, 2015
  16. physics

    A soccer ball leaves the foot of a player with an intitial velocity of 22 m/s at an angle of 30 degrees above the positive x-axis. What is the initial velocity in the y-direction? Two sigfigs Remember...no units...but it would be in m/s

    asked by mark on September 7, 2012
  17. physics

    a boy throws a stone straight upward with an initial speed of 15 m/s on the surface of the earth. what maximum height above the starting point will the stone reach before falling back down?

    asked by Anonymous on September 8, 2012
  18. Physics

    3. A projectile is launched at 10.0 m/s in a direction 45.0 degrees above the horizon. It hits the ground 10.0 m below its initial position. What is its speed just before hitting the ground? Ignore air resistance. The answer is supposed to be 17.2 m/s.

    asked by James on July 28, 2012
  19. Physics for life scince

    II.You are standing on the edge of a 50m high cliff and throw a ball vertically up with initial speed of 20m/s: 1.After how long will the ball hit the ground below? 2.Draw the v vs.t graph

    asked by Simeon on March 23, 2010
  20. maths

    You deposited 25000# in an account that earns 7% interest compounded monthly. A)write the first 6terms of the sequence if the initial deposit is excluded B)find the balance in the account after 5years

    asked by adaeze on January 14, 2018
  21. physics

    A newly established colony on the Moon launches a capsule vertically with an initial speed of 1.453 km/s. Ignoring the rotation of the Moon, what is the maximum height reached by the cap

    asked by joy on March 9, 2018
  22. Math/Physics

    Take the acceleration due to gravity as g= 9.81ms-2 A red ball is thrown straight up from the edge of the roof of a building. A green ball is dropped from the same point (t = 1.80s) seconds later. (a) If the height of the building is (h = 74) m, what is

    asked by James on October 1, 2018
  23. Physics

    A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y

    asked by Michelle on February 20, 2014
  24. Physics

    A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y

    asked by Michelle on February 17, 2014
  25. AP Physics

    Hi! Thank you very much-- I know this is a 2dimensional inelastic collision but i'm not sure how to solve-- "The mass of a blue block is 20% greater than the mass of the green block. Before colliding, the blocks approach each ther with momenta of equal

    asked by APpreciative student on November 21, 2010
  26. Physics

    A dragster starts from rest and accelerates down the track. Each tire has a radius of 0.360 m and rolls without slipping. At a distance of 360 m, the angular speed of the wheels is 292 rad/s.

    asked by Oliver on April 5, 2008
  27. math

    You are a lab technician and must create 250 ml of a 17% salt-solution. a. If you have 500 ml of 28% salt-solution, how many milliliters of it should you mix with water in order to create 250 ml of a 17% salt-solution? b. If you have 400 ml of 40%

    asked by Fatih on February 15, 2012
  28. Calc

    You are a lab technician and must create 250 ml of a 17% salt-solution. a. If you have 500 ml of 28% salt-solution, how many milliliters of it should you mix with water in order to create 250 ml of a 17% salt-solution? b. If you have 400 ml of 40%

    asked by Fatih on February 16, 2012
  29. physics

    A ball is dropped a high cliff, and two second later another ball was thrown vertically downwards with an initial speed of 30 m/s.How long will it take the second ball to overtake the first?

    asked by Anonymous on August 31, 2014
  30. calculus

    Could somebody please check these for me? Solve the differential equation with the given initial solution. 1. (dy/dx)=(-y/3) for y(0)=10 my answer was y=10e^(-x/3) 2. dP/dt=P+4 for P(0)=100 my answer was P=104(e^t)-4 3. dz/dt=te^z for z(0)=0 my answer was

    asked by tia on April 14, 2008
  31. Physical Science

    What is the acceleration of an airplane with an initial velocity of 150 m/s and a final velocity of 175 m/s and the velocity change was made in 5 seconds? .

    asked by Mariah on January 2, 2013
  32. calculus

    Could somebody please check these for me? Solve the differential equation with the given initial solution. 1. (dy/dx)=(-y/3) for y(0)=10 my answer was y=10e^(-x/3) 2. dP/dt=P+4 for P(0)=100 my answer was P=104(e^t)-4 3. dz/dt=te^z for z(0)=0 my answer was

    asked by tia on April 16, 2008
  33. physics

    A girl makes a jump in the long jump with an initial velocity of 12 m/s. She leaves the ground at 20 degrees above the horizontal. How far is her jump?

    asked by gale on October 15, 2010
  34. physics

    A girl makes a jump in the long jump with an initial velocity of 12 m/s. She leaves the ground at 20 degrees above the horizontal. How far is her jump?

    asked by gale on October 15, 2010
  35. Calculus

    Use Newton's method to approximate a root of the equation (2 x^3 + 4 x + 4 =0) as follows. Let (x_1 = -1\) be the initial approximation. The second approximation (x_2) is ? and the third approximation (x_3) is ?

    asked by Salman on November 11, 2009
  36. physics

    a rock is thrown straight up and reaches a height at 10 meters. 1.how long was the rock in the air 2.what is the initial vvelocity of the rock?

    asked by gheng on September 14, 2016
  37. Chemistry II

    For the titration of 50.00 mL of 0.106 M NH3 with 0.225 M HCl, calculate (A) the initial pH and when the pH neutralization is (B) 25.0% complete (C) 50.0% complete (D) 100.0% complete

    asked by Rosi on March 5, 2012
  38. physics

    a hockey puck is given the initial speed of 10 m/s. If the coefficient of kinetic friction between the ice and puck is 0.10, how far will the puck slide before stopping?

    asked by ama on December 14, 2010
  39. chemistry

    600 gallons of 15 M nitric acid were added to a lake. The initial pH of the lake was 5.90 and the final pH was 3.70. What is the volume of the lake?

    asked by mar on March 13, 2015
  40. Chemistry

    75.0 claories of heat were added to 50.0 ml of water, the initial temperature of the water being 25.0 celcius. What is the final temp. of water?

    asked by Anonymous on October 11, 2011
  41. calculus

    Use Newton's method to approximate a root of the equation 3sin(x)=x as follows. Let x1=1 be the initial approximation. The second approximation x2 is and the third approximation x3 is I got x2=-1.454 but can't get x3 :(

    asked by HELLLLLPPPPPPP on September 8, 2010
  42. calculus

    Use Newton's method to approximate a root of the equation 3sin(x)=x as follows. Let x1=1 be the initial approximation. The second approximation x2 is and the third approximation x3 is for x2 I got -1.454 which is right but I can't get x3

    asked by HELLLLLPPPPP on September 8, 2010
  43. Chemistry

    320.0 gallons of 15 M nitric acid were added to a lake. The initial pH p the lake was 6.30 and the final pH was 4.60. What is the volume of the lake?

    asked by Meg on April 3, 2016
  44. Chemistry

    Does the reaction between CO2(g) + Mg(OH)2(aq) produce MgCO3(s) + H2O(l) or Mg(HCO3)2 ??? Normally, Mg(CO3)2 but I suspect an excess of CO2 will produce the bicarbonate. For example, CO2(g) + Ca(OH)2(aq) ==> CaCO3(s) + H2O(l) and that is often done by

    asked by Fiona on June 1, 2007
  45. chem

    Water (2330 g) is heated until it just begins to boil. If the water absorbs 5.53×105 J of heat in the process, what was the initial temperature of the water?

    asked by Anonymous on October 20, 2010
  46. Physics

    A hockey puck is given an initial speed of 6.7 m/s. If the coefficient of kinetic friction between the puck and the ice is 0.08, how far (in m) does the puck slide before coming to rest?

    asked by Amir on May 1, 2017
  47. physics

    A mass was dropped from a height of 20m. (a) find its speed at impact. (b) what can you say about the initial GPE of the mass and the KE of the mass just as it hits the ground?

    asked by Madi on March 15, 2011
  48. Physics

    A 10-kg mass is projected straight up with a speed of 20.0 meter/second. 1. Find the initial kinetic energy of the mass 2. To what height does the mass rise?

    asked by Anonymous on October 1, 2013
  49. calculus

    A ball is thrown vertically upwards from a height of 6 ft with an initial velocity of 60 ft per second. How high will the ball go? Note that the acceleration of the ball is given by a(t)= 32 feet per second per second.

    asked by miranda on December 6, 2012
  50. physics

    A shot-putter throws the shot with an initial speed of 4.0 m/s from a height of 4.7 ft above the ground. Calculate the range of the shot for each of the following launch angles.

    asked by Anonymous on October 21, 2011
  51. physics

    a man throws a rock horizontally off a building with an initial velocity of 22.4 m/s. it hits the ground 91.6 m from the building. how tall is the building? (positive value)

    asked by corinne on October 31, 2008
  52. Math

    Consider the initial value problem y'' +5y'+6y=0, y(0)=4.87 and y'(0)=Beta where Beta>0 Determine the coordinates t_m and y_m of the maximum point of the solution as functions of Beta.

    asked by Yarielis on March 4, 2014
  53. physics

    A wheel has an initial velocity of 3.40rad/s and it rotates 1.25 revolutions before stopping what is the angular acceleration of the wheel how long does it take for the wheel to come to rest

    asked by Riley on July 21, 2017
  54. physics

    A body moves 6 meters north than 8 meters east than 10 meters vertically upward. What is its resultant displacement from initial position?

    asked by Anant on June 13, 2011
  55. Physic!

    A blue ball is thrown upward with an initial speed of 23 m/s, from a height of 0.5 meters above the ground. 2.8 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 6.6 m/s from a height of 28.9 meters above the ground.

    asked by one on February 10, 2018
  56. chemistry

    The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium

    asked by bill on April 11, 2012
  57. Honors Chemistry (stoichiometry)

    Can someone check and make sure I'm doing these problems right? Thanks so much!! 1. N2 + 3H2 ==> 2NH3 : How many moles of hydrogen are needed to completely react with two moles of nitrogen? ==> I got 6 moles. 3. Zn + 2HCl ==> ZnCl2 + H2 : How many moles of

    asked by Emily on November 5, 2009
  58. chemistry

    For 2SO2(g)+O2(g)⇌2SO3(g), Kp=3.0×104 at 700 K. In a 2.00-L vessel the equilibrium mixture contains 1.15 g of SO3 and 0.107 g of O2. 1) How many grams of SO2 are in the vessel? ---------------------------- A flask is charged with 1.500 atm of N2O4(g)

    asked by whateva on February 1, 2018
  59. CHEMISTRY

    Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 26.600 g Mass (after reaction): test tube + HCl(aq) + stir bar + capsule 25.300 g Volume of water displaced from the squirt bottle 148 mL Temperature of the CO2(g) 287.4 K Pressure (atm)

    asked by Karina on October 23, 2012
  60. math

    Complete the table for a savings account in which interest is compounded continuously. (Round your answers to four decimal places.) Initial Investment: $350 Annual % Rate: % Time to Double: yr Amount After 10 Years: $435.21

    asked by madison on June 1, 2018
  61. Physics

    A cow pat was thrown 81.1m. Assuming the initial launch angle was 45 degrees, and neglecting air resistance, determine the total time the projectile was in flight. a) 4.83s b) 5.28s c) 4.07s d) 5.87s e) 4.35s

    asked by Cody on October 10, 2012
  62. PRE-CAL

    Complete the table assuming continuously compounded interest. (Round your answers to two decimal places.) Initial Investment== ? Annual % Rate== ? Time to Double== 11YRS Amount After 10 Years== $1600 Using formula A=Pe^rt ?

    asked by RACHEL on September 17, 2016
  63. physics

    a large aircraft accelerates sown the runway for a distance of 3000m before leaving the ground. It then climbs at a steady 3 degree angle. After the plan has travelled 4000m along this new trajectory, how high is it and how far horizontally is it from its

    asked by Brian on September 10, 2014
  64. Chemistry 2

    Which is the oxidizing agent in the reaction below. Cr2O72- + 6S2O32- +14H+ > 2Cr3+ + 3S4O62- +7H20 A. Cr3+ B. S4O62- C. Cr2O62- D. S2O32- E. H+ I believe it's D or is it C not 100% sure please help. THANKS

    asked by Debbie on April 6, 2012
  65. Chemistry

    Write a balance equation for the reaction of nitric acid (HNO3) with each base solution : [1]. NaHCO3, [2]. MgCO3. ( Please include the phases of the substance)

    asked by Jennifer on December 8, 2012
  66. Chemistry

    Consider the reaction 2D2(g)+O2(g)→2D2O(l) What is the mass of heavy water, D2O(l), produced when 7.65g of O2(g) reacts with excess D2(g)? Express your answer with the appropriate units.

    asked by Brittany on April 14, 2015
  67. Chemistry

    Equal masses of P and Cl react according to the following equation: 2P + 3Cl2 --> 2PCl3 Identify which reagent is in excess. Calculate the percent that will remain at the end of the reaction.

    asked by L. on November 29, 2012
  68. Chemistry

    Write a net ionic equation for the overall reaction that occurs when aqueous solutions of potassium hydroxide and oxalic acid (H2C2O4) are combined.

    asked by Adriana on September 28, 2016
  69. Chemistry

    How many grams of CS2(g) can be prepared by heating 12.9 moles of S2(g) with excess carbon in a 7.00 L reaction vessel held at 900 K until equilibrium is attained? Stoichiometry is 1 to 1

    asked by Moni on February 21, 2013
  70. chemistry

    4 gram of Na metal introduce into a 4 litre flask filled with Cl gas at STP(273K, 1 bar) after reaction over , find limiting reactant

    asked by FARID on April 12, 2012
  71. Chemistry

    How could the following transformation could be carried out. C6H5C=CH --> C6H5CH2CH20H I don't know how you would get a primary alcohol because I thought that following Markovnikov's rule any reaction would involve addition onto the other carbon.

    asked by Beth on April 18, 2009
  72. Physics Someone help please!

    An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

    asked by Amy on May 8, 2013
  73. Chem- Percent Yield

    When HgO is heated, it decomposes into elemental mercury and diatomic oxygen gas. If 42.9 g of Hg is obtained from 70.1 g of the mercuric oxide, what is the percent yield of the reaction?

    asked by Lara on October 11, 2012
  74. chemistry

    what are the general reactants and products in a fermentation reaction? thanks http://www.crocodile-clips.com/absorb/AC4/sample/LR1507.html

    asked by joe on January 11, 2007
  75. college chem

    How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 15C?

    asked by debra on March 9, 2010
  76. Chemistry

    When calcium oxelate is treated with an acidic solution of potassium permanganate, the following reaction occurs: CaC2O4(s) + MnO4-(aq) = Ca+2(aq) + CO2(g) + Mn+2(aq) Balance the equation.

    asked by Sheila on October 16, 2010
  77. Chemistry

    I'm having alot of trouble in chemistry. Currently were studying chemical equations and reactions. I would like to know if this is a single or double replacement reaction. 2Li + H2O ---> 2LiOH + H2

    asked by Alexandria on March 13, 2009
  78. chem.

    How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 12C?

    asked by gerald on March 31, 2008
  79. Chemistry

    For the reaction Ag2S 2Ag + S2 what happens to the equilibrium position if aqueous ammonium sulfide is added A. Shift left B. Shifts right C. Does nothing D. Doubles E. Halves

    asked by Monique on November 11, 2011
  80. marketing

    How might you use different types of research (focus groups, observation, survey, and experiment) to forecast market reaction to a new kind of disposable baby diaper?

    asked by jane on July 15, 2012
  81. CHEMISTRY

    IF AFTER PRECIPITATION OF THE GROUP I CATIONS AS CHLORIDES BY THE REACTION WITH HCL NEARLY ALL OF THE PRECIPITATE DISSOLVES IN THE HOT WATER. WHAT ION IS MOST PROBABLY PRESENT AND WHICH IONS ARE MOST PROBABLY ABSENT?

    asked by HELPP NO IDEA on October 16, 2011
  82. science

    I did the work for this lab but forgot to record the data. It was a double displacement of CuSO4 and NaCO3. If someone could help me with the visual reaction that would help me out a lot. I know what to do I just don't remember what happens.

    asked by Teegan on October 19, 2014
  83. chemistry

    at a particular temperature, k equals 2.0 x 10 to the -6 power for the reaction 2CO2 2CO + O2 if 2.0 mol CO2 is initially placed into a 5.0 L vessel, calculate the equilibrium concentration of all species

    asked by Anonymous on December 3, 2012
  84. Chemistry

    The rate constant for this first order reaction is 0.440s-1at 400 C. A to products How long(in seconds) would it take for the concentration of A to decrease from 0.740 M to 0.290 M?

    asked by Josh on July 19, 2011
  85. chemistry

    Which one of the following represents the theoretical yield, in moles, of precipitate for the double displacement reaction if 25.0 mL of 1.0 M aqueous calcium nitrate is added to 15.0 mL of 1.5 M sodium phosphate?

    asked by Anonymous on October 23, 2009
  86. Organic chemistry

    Suggest an appropriate reducing reagent for the following substrates and predict the product of the reaction: a) 2-hexanone b) ethyl 4-nitrobenzoate (reduction of the nitro group) c) hexanal

    asked by Jane on February 7, 2009
  87. Chemistry

    Exercise 14.55 Consider the reaction: NiO(s)+CO(g)⇌Ni(s)+CO2(g) Kc=4000.0 at 1500 K When calculating the answer, do not round to the appropriate number of significant figures until the last calculation step..

    asked by Nevaeh on March 6, 2016
  88. chemistry

    How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 15C?

    asked by debra on March 9, 2010
  89. chemistry

    Write a balanced chemical reaction to show the dissociation of solid magnesium chloride (MgCl2) in water, indicate states of the reactants and products

    asked by Jessica on October 16, 2010
  90. chemistry limiting reagent

    if i have a 1:1 mole ratio as with this reaction: NaOH + HCl --> NaCl + H20 and i use same volumes (50mL) and same Molaritys (1.00M) then there is no limiting reactant correct??

    asked by amy on November 13, 2016
  91. Chemistry

    Calculate how many grams of the product(s) would be produced by complete reaction of 0.125 mole of the first reactant. CaCO3 + 2HCl --> CaCl2 + CO2 + H2O

    asked by Lindsey on April 23, 2012
  92. Chemistry!

    a)consider the following reaction: Mg(s)+ 2HCl(aq) --> MgCl2 (aq)+H2 (g) What minimum amount of 1.75 M HCl is necessary to produce 27.5 L of H2 at STP? b) What is the freezing point of an aqueous solution that boils at 102.1 C?

    asked by Justin on April 26, 2010
  93. chemistry

    2CH3OH(g)→2CH4(g)+O2(g)ΔH=+252.8kJ For a given sample of CH3OH, the enthalpy change during the reaction is 82.2kJ . How many grams of methane gas are produced?

    asked by ihatechem on October 29, 2014
  94. chemistry

    Calculate the activation energy (in Joules) for a reaction whose rate constant doubles when the temperature is raised from 298 K to 500 K. Take R to be 8.314 J/K-mol.

    asked by travis on October 13, 2011
  95. AP Chemistry

    Calculate ΔHrxn for the following reaction: C(s)+H2O(g)→CO(g)+H2(g) Use the following reactions and given ΔH values: C(s)+O2(g)→CO2(g), ΔH= -393.5 kJ 2CO(g)+O2(g)→2CO2(g), ΔH= -566.0 kJ 2H2(g)+O2(g)→2H2O(g), ΔH= -483.6 kJ

    asked by Q on December 8, 2015
  96. physics

    An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

    asked by Amy on May 8, 2013
  97. Chemistry

    NaHCO3 + H2SO4 Na2SO4 + H2O + CO2 Use minimal integer numbers to balance the reaction. Include physical states in your answer.

    asked by Khin on March 22, 2010
  98. chemistry

    The standard Gibbs free energy of formation of ammonia at 25 ° c is - 16.5kj per mole.calculate the value of equilibrium constant Kp at this temperature for this reaction. ( 5marks )

    asked by muli on March 21, 2015
  99. Biology

    An individual is born with a genetic abnormality that causes a reduction in the myelin found around a neuron. How might this disorder affect reaction rate? Explain your answer.

    asked by G on September 19, 2012
  100. science-chemistry

    Predict and draw the structure of the product of the reaction of the following substrates with the given reducing agent. 2-hexanone mixed with hexanoic acid with (i) NaBH4 (ii) LiAlH4

    asked by Anonymous on August 23, 2017