chemistry! URGENT

61,546 results, page 50

  1. chemistry

    how do i balance SO3 + H2O = H2SO4
  2. Chemistry

    What is the C-C-H bond angle in the molecule H2CCO?
  3. chemistry

    draw the conformational structures is 2-methylpentane?
  4. Chemistry

    What is the pH of a saturated zinc hydroxide solution?
  5. chemistry

    5:8 emperical formula with hydrogen and carbon
  6. chemistry

    define elements, compound and molecules.
  7. chemistry

    What is the chemical equation of methylamine with CuSO4?
  8. Chemistry

    Assuming complete dissociation, what is the pH of a 2.55 mg/L Ba(OH)2 solution?
  9. chemistry

    how many moles of O2 are contained in 6.53 L with 297 K and 6.6 atm
  10. Chemistry

    What is the molecular equation for HCl(aq) + NH4OH(aq)?
  11. CHEMISTRy

    predict the product of the following: a.) Ca + H + OH => b.) Pb(NO3)2 + Cu =>
  12. chemistry

    How to calculate the molarity of commercial bleach
  13. Chemistry

    Express 798 mm Hg in units of atm
  14. chemistry

    How many Cl atoms are in a 2.54g sample of CCl4?
  15. Chemistry

    calculate the ph of titration of 50.0 ml of 0.140 m hclo (aq)
  16. Chemistry

    What volume does 3.01 x 10^21 molecules of N2 occupy at STP?
  17. Chemistry

    What is the formula for CoCl2 with 45.5 percent water?
  18. Chemistry

    3.00 g of H2 reacts with 200.0 g of AgCl. what is the yield?
  19. chemistry

    how many grams of oxygen are in 175 g of C5H10O5
  20. Chemistry

    Co-ordination number of Cr in dibenzene chromium is ??
  21. Chemistry

    Co-ordination number of Cr in dibenzene chromium is ??
  22. Chemistry

    How many grams of Na2O are produced when 62.5g of Na reacts?
  23. chemistry

    how do i find the specific heat of a metal??
  24. chemistry

    what is the solid remains in lithium trioxonitrate v
  25. chemistry

    What is the solubility of Ca3(PO4)2 in 0.06 M of K3PO4
  26. chemistry

    Is benzophenone soluble in phosphoric acid?
  27. Chemistry

    What is the Ka of the amino acid serine if it is 34.5% dissociated at pH- 9.46?
  28. Chemistry

    cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
  29. Chemistry

    cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
  30. Chemistry

    How do you find the equilibrium constant? ..steps?
  31. Chemistry

    cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
  32. Chemistry

    How do you find the equilibrium constant of: B + O2 <-> BO2 ??
  33. chemistry

    The density of CO2 (g) at 25°C and 715 torr is:
  34. Chemistry

    Name the compounds CH3CH2CHCH2CH3 - Is this 3-Pentane? Thanks
  35. Chemistry

    0.1 mol of HCl is added to 1 L of water. What is [H+] and [OH-]?
  36. Chemistry

    Is there a difference between SiO2(aq) and H4SiO4?
  37. chemistry

    If we have a concentration of H+ at 5 x 10-2 mol/L, what is the pH value?
  38. chemistry

    which orbitals have centre of symmetry
  39. chemistry

    What is the primary standard for the preparation of silver.
  40. chemistry

    What is the primary standard for the preparation of silver.
  41. chemistry

    What is the primary standard for the preparation of silver.
  42. chemistry

    What is the primary standard for the preparation of silver.
  43. Chemistry

    how many ml of .5M HCL are required to neutralize 600 mg of Mg(OH)2?
  44. inorganic chemistry

    silt is an example of ........ Hydride
  45. chemistry

    how many moles of nh3 are produced from 16 grams of n2 ?
  46. chemistry

    you have 333 ml of alkaline solution at pH=11.1
  47. chemistry

    What kinds of bonds are present in graphite?
  48. Chemistry

    How many meters underwater is 3.128 atm?
  49. chemistry

    what happens when iron reacts with steam
  50. Chemistry

    Why is a beehive used in the preparation of hydrogen
  51. chemistry

    Whadetermines the behavior of an amphoteric compound?
  52. Chemistry

    What is the reaction for 2NH4I+Cl2=2NH4Cl+I2
  53. Chemistry

    How many grams of NaCl are produced from 6 moles of Na?
  54. Chemistry

    Draw the product of the hydration of 2-butene.
  55. Chemistry

    Draw the product of the hydration of 2-butene.
  56. Chemistry

    How many kilojoules are released when 85.0g methanol is burned?
  57. Chemistry

    what does the 8 on top of a chemical symbol signify?
  58. Chemistry

    The solubility of AgCl (s) is 2.5 x 10^-5 M. calculate the ksp
  59. chemistry

    How many moles of compound are in 30.2 g of Na2CO3·10H2O?
  60. chemistry

    how many covalent bonds are there in methane molecule
  61. Chemistry

    What is the electron pair geometry for NCL3?
  62. Chemistry

    What is the electron pair geometry for NCL3?
  63. Chemistry

    The maximum molecular mass ............ Atoms.
  64. Chemistry

    What's the correct empirical formula for CO2?
  65. chemistry

    How many liters is 5.8 moles of neon (Ne) at STP?
  66. Chemistry stochimetry2

    The volume strength of 1.5 N H2O2 is.......
  67. Chemistry

    The normality of 0.3 M phosphorus acid (H3PO3) is.......
  68. Chemistry

    Calculate the moles of O in 2.57g of Ba(No3)2 I get 33.2m
  69. Chemistry

    Halogen have ... Electron affinity
  70. chemistry

    how many sig figs in this number: 32.6721
  71. Chemistry

    Calculate the wavelength of a proton with energy 2.45 eV.
  72. chemistry

    How many moles of Na2CO3 are teher in 5.oL of 2.0 M solution?
  73. chemistry

    If you have 13.0g of Na, how many grams of O2 are required for the reaction?
  74. chemistry

    what is the name of reaction for 3C2H2--> C6H6?
  75. chemistry

    what are the products of the equation Al(s)+HCl(aq)AlCl3(aq)H2(g)?
  76. Chemistry

    What is the compound formula for Cation: Na+ and Anion: CN-
  77. Chemistry

    K2SO4+ Na2HPO4=? NaHCO3 + Sr(NO3)2=?
  78. chemistry

    What is molarity? what is the unit to measure moralrity?
  79. chemistry

    1. What quantum numbers specify these subshells? 5s: n=? l=? 5p: n=? l=? 3d: n=? l=?
  80. Chemistry

    How do I prepare 30 mL of NaOH by dissolving it in water?
  81. chemistry

    Covert 22.3 grams of C6H12O6 to molecules
  82. chemistry

    A B C D E F G H 14Si A B C D E F G H 13Al A B C D E F G H 12Mg A B C D E F G H 4Be A B C D E F G H
  83. chemistry

    balance the following ionic equation: Sn(2+)(aq)+ Mn(2+)(aq)----- Mn(5+)(aq)+ Sn (s)
  84. chemistry

    Why do acids and bases conduct electricity?
  85. Chemistry

    What is the electro-negativity of NO ? (Nitric oxide)
  86. Chemistry

    0.25 mol dm-3 solution of hydrochloric acid?
  87. Chemistry

    Assuming complete dissociation, what is the pH of a 3.73 mg/L Ba(OH)2 solution?
  88. Chemistry

    What fraction of glutamate is charged in milk
  89. chemistry

    N_v/N_s =Ae ^-change Hv/kT. What is the value of e^? Thanks.
  90. Chemistry

    how do i know which compounds to put the roman numeral in?
  91. chemistry

    What are the values of [H3O+] and [OH−] for a solution with pH = 3.86?
  92. chemistry

    Why is limiting reactant important in stoichemestry?
  93. Chemistry

    Is oxygen considered an diatomic molecule?
  94. chemistry

    how do u find the percantage composition of an element?
  95. chemistry

    If the ground state is 4S^2 , what is the name of the element
  96. Chemistry

    What is uncertainty and how can I calculate it ? For example, 0.001 +/- ?
  97. chemistry

    What is the combustion of ethane (dicarbon hexahydride)
  98. chemistry

    2 nacl (aq) + h2so4 ==> na2so4 (aq) + 2 hci (g)
  99. chemistry

    If we have a concentration of H+ at 5 x 10-2 mol/L, what is the pH value? A. -1.30 B. 0 C. 1.3 D. 2.6
  100. chemistry

    what the balance equation for solid carbon
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