chemistry! URGENT

61,546 results, page 39

  1. Chemistry

    how many moles of Cl in 2.7 mol CaCl2
  2. Chemistry

    What is the hybridization of phosphorous in a P4 molecule
  3. chemistry

    why do gases mix in any proportion?
  4. chemistry

    what is the lewis dot structure for BN
  5. chemistry

    complete and balance Co(OH)3(aq)+Na2CO3(aq)
  6. Chemistry

    How many moles of H2 can be produced? (2.14 mol)
  7. Chemistry

    how do you balance equations to get the formula?
  8. chemistry

    What is the formula for barium chloride
  9. Chemistry

    How many grams of are required to react with 29.0?
  10. chemistry

    How many moles are in 4.80 grams on SnO2?
  11. Chemistry

    What is pH of pure water at 70o C
  12. chemistry

    Fe(s) +Pb^2 (aq)---->Fe ^2+ (aq) +Pb(s) which reactant has been oxidized
  13. chemistry

    LiCIO4(s)=LiCI(s)+2O2(g)
  14. chemistry

    how many molecules are in 0.89 moles of ammonia
  15. chemistry

    how many molecules are in 0.89 moles of ammonia
  16. Chemistry

    What is the Oxidation number of O8O4?
  17. chemistry

    what is evidence of exothermic rection?
  18. Chemistry

    Calculate pH of NH4OH which is 1%ionized
  19. chemistry

    what is the ionic equation for 2HNO3(aq)+Ba(OH)2(aq)
  20. chemistry

    what is the value of [OH-] in a 0.730 M solution of Sr(OH)2?
  21. Chemistry

    Calculate the pH of 30.0 mL of 0.025 M NaOH
  22. Chemistry

    Calculate the pH of 30.0 mL of 0.025 M NaOH
  23. Chemistry

    What is the molarity of potassium nitrate?
  24. chemistry

    intermolecular forces in caffeine
  25. chemistry

    how may grams are in 6.1 moles of AIN
  26. CHEMISTRY

    What is oxygen extensive properties?
  27. chemistry

    what's the formula for specific heat
  28. Chemistry

    Which ion has larger radius O2- or F 1-?why?
  29. Chemistry 3A

    how do we write a nuclear symbol?
  30. Chemistry..

    How many O atoms are there in a mole O2? My answer: 6.02*10^23
  31. Chemistry

    What is the density of 3.40 liters of hci
  32. chemistry

    6.85ml of 0.015M SN2+
  33. Chemistry

    What is the voltage for CuCl2 + Zn ZnCl2 + Cu?
  34. chemistry,science

    how were volcanoes formed ?
  35. chemistry

    why do we perform tritation many times ?
  36. chemistry

    what can be the source of error in titration?
  37. CHEMISTRY

    What is the mass of 1.75 x 10^24 molecules of NH3?
  38. Chemistry

    ow many molecules are in 0.26 mol of CO2?
  39. Chemistry

    Name this compound: H2O2
  40. Chemistry

    How many moles are 400 g of Ca(HSO4)2
  41. chemistry

    how methane is produced or where it comes from?
  42. Chemistry

    What are the physical propertise of Air
  43. chemistry

    The nuclear reaction Sn ¨ Sb + ? is an example of
  44. chemistry

    what are the fundamental particles in antifreeze
  45. chemistry

    Preceed the equation of CuSO4 + Fe
  46. Chemistry

    what is the empirical formula for a compund with 26.2 g N, 7.5 g H, and 66.3 g Cl?
  47. chemistry

    explain why iron is paramagnetic?
  48. chemistry pH

    calculate [H^+] and the pH of 0.025M of HNO3
  49. chemistry

    Is CF4 polar or nonpolar?
  50. chemistry

    what are structural examples of an aldehyde?
  51. chemistry

    lewis structure of HOCH2S-
  52. Chemistry

    How many valance electrons are there in [(C2H5)4N]+ ?
  53. Chemistry

    Hydrocinnamoyl chloride + AlCl3 --> ??
  54. Chemistry

    What is the pH of a 0.20 M HF solution that is 5.8% ionized at 25 Celsius ? A.4.45 b.0.70 C.1.93 D.1.23 E.1.40
  55. chemistry

    how many phases do suspensions have?
  56. Chemistry

    Name a few pharmacopoeias.
  57. Chemistry

    How many liters are in .005 moles?
  58. chemistry

    When 25.0 g of Zn reacts,how many L of H2 are formed at STP?
  59. Chemistry

    Co-ordination number of Cr in Cr(n^6 - C6H6)2 is
  60. chemistry

    how to prepare 24 μL of 5% H3BO3
  61. chemistry

    how many gram of h2 needed to react with 3.10 n2
  62. chemistry

    how many gram of h2 needed to react with 3.10 n2
  63. chemistry

    The number of moles of o2 in 45.0L} of 02} gas.
  64. Chemistry

    what happens to a battery when it is "recharged"
  65. chemistry

    what is the h+ of a solution with a ph of 10 at 25 degree celsius
  66. chemistry

    When does a chemical become a drug?
  67. chemistry

    WHEN DOES A CHEMICAL BECOME A DRUG?
  68. CHEMISTRY

    WHEN DOES A CHEMICAL BECOME A DRUG?
  69. Chemistry

    What is the intermolecular force for BaCO3?
  70. Chemistry

    concentration of hydrogen ion is 3.8*10^-3M.what is its pH?
  71. Chemistry

    calculate the kb of ammonia if the ph of .5M solution is 11.48
  72. Chemistry

    calculate the kb of ammonia if the ph of .5M solution is 11.48
  73. Chemistry

    If 5.05 L of a gas has a mass of 7.58 mg, what is its density in g/L?
  74. Chemistry

    What is the pH of a 0.200 M solution of HNO3? a. 0.70 b. 1.31 c. 6.18 d. 8.53
  75. chemistry

    what does 1M solution of sugar stands for?
  76. Chemistry

    Determine the [H+] when [OH-] is 2.0 times 10^-2 mole.dm-3.
  77. chemistry

    what is brandy's solution in chemestry?
  78. Chemistry

    Convert 1.445 +104m to km
  79. chemistry

    determine the mass of a 1.75 cm piece of Mg if 30 am =.42 g?
  80. chemistry

    are these two statements true? (a/b)^x = a^x - b^x and (x^a + x^a+b) / (1+x^b) = x^a
  81. chemistry

    How many grams of Cl are in 525 g of CaCl2?
  82. Chemistry

    How many atoms are 3.75 moles of iron (Fe)?
  83. chemistry

    a metal object has a mass of 8.37
  84. Chemistry

    Balance the redox reaction: Ag(aq)+Cu(s)= Ag(s)+Cu(aq)
  85. Chemistry

    How do I convert micrograms/mL to micromol/L? Thanks
  86. Chemistry

    What is the relationship of the concentration of H3O and of OH
  87. AP Chemistry

    Convert 8.3×10^5 cal to kiloJoules
  88. CHEMISTRY

    What is the name of 12H2O and 10 H2O?
  89. Chemistry

    Define minimum assay
  90. Chemistry

    Does 1cm^3 equal to 1liter???
  91. Chemistry

    How many of O is in the formula 4Cu(OH)2 ? (The 2 is the subscript)
  92. chemistry

    how do u hybridize for sulfate (SO4 -2)?
  93. Chemistry

    How many moles in 0.7g of SO2 ..and how would you do this! Thanks
  94. Chemistry

    What is 0.7g of SO2 ..and how would you do this equation? Thanks,
  95. chemistry

    help balance HNO2+HNO3
  96. chemistry

    the oxidation number of Mo in Na2MoO4 is what?
  97. Chemistry

    Is esterification a condensation reaction?
  98. Chemistry

    Is esterification a condensation reaction?
  99. Chemistry

    Balance KCLO3 ---> KCl + O2
  100. chemistry

    how can we separate MnCl2(aq)+Na2SO4(aq)?
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