CHEMISTRY (WEBWORK)

59,293 results, page 18

  1. Chemistry

    What are the physical propertise of Air
  2. chemistry

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

    what are the fundamental particles in antifreeze
  4. chemistry

    Preceed the equation of CuSO4 + Fe
  5. Chemistry

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

    explain why iron is paramagnetic?
  7. chemistry pH

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

    Is CF4 polar or nonpolar?
  9. chemistry

    what are structural examples of an aldehyde?
  10. chemistry

    lewis structure of HOCH2S-
  11. Chemistry

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

    Hydrocinnamoyl chloride + AlCl3 --> ??
  13. 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
  14. chemistry

    how many phases do suspensions have?
  15. Chemistry

    Name a few pharmacopoeias.
  16. Chemistry

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

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

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

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

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

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

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

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

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

    When does a chemical become a drug?
  26. chemistry

    WHEN DOES A CHEMICAL BECOME A DRUG?
  27. CHEMISTRY

    WHEN DOES A CHEMICAL BECOME A DRUG?
  28. Chemistry

    What is the intermolecular force for BaCO3?
  29. Chemistry

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

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

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

    If 5.05 L of a gas has a mass of 7.58 mg, what is its density in g/L?
  33. 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
  34. chemistry

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

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

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

    Convert 1.445 +104m to km
  38. chemistry

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

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

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

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

    a metal object has a mass of 8.37
  43. Chemistry

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

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

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

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

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

    Define minimum assay
  49. Chemistry

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

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

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

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

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

    help balance HNO2+HNO3
  55. chemistry

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

    Is esterification a condensation reaction?
  57. Chemistry

    Is esterification a condensation reaction?
  58. Chemistry

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

    how can we separate MnCl2(aq)+Na2SO4(aq)?
  60. chemistry

    how many moles of vapor can be produced for 52 g of O2
  61. Chemistry

    how do I calculate theoretical yield?
  62. Chemistry

    name the ions: Ag+ and P-3... and it's not silver..
  63. chemistry

    what is the correct name for k2o
  64. chemistry

    How many molecules are in 0.400 moles of N2 O5?
  65. chemistry

    Which of the isotopes of hydrogen is radioactive
  66. Chemistry

    Determine the pH of a 1.2×10^−2 M solution
  67. Chemistry

    how do i name this chemical? Fe(NO3)2
  68. Chemistry

    how do i name this chemical? S(ClO3)2
  69. Chemistry

    what is chemical for the preparation of siliconcarbide
  70. chemistry

    C6O2H8, Ka = 1.7 x 10-5 calculate pka
  71. chemistry

    what is the lewis structure for N-bromosuccinimide?
  72. chemistry

    define a chemical bond
  73. Chemistry

    How many mL of 0.49 M HCl will neutralize 42 mL of 1.48 M NaOH?
  74. Chemistry

    What is the final concentration if 27.08 (MW: 36.46) dissolved in 55.51 ml?
  75. Chemistry

    Describe electron delocalization.
  76. chemistry

    hydrogen may not be advantagous as a fuel because
  77. chemistry

    I say unsaturated. Am I right?
  78. general chemistry

    how to calculate molarity?
  79. chemistry

    I say unsaturated. Am I right?
  80. chemistry

    what is the weight in kg of 3*10 22 molecules of NaOH
  81. chemistry

    write 63 ml in scientific notation
  82. chemistry

    What is the chemical formula of ketohexose?
  83. chemistry

    the no. of neutrons in 5g of D2O(Dis 2/1 H) are:
  84. chemistry

    Why is respiration an exothermic reaction?
  85. Chemistry

    Which base is the strongest for the given [H+]? A)10^-9 B)10^-11 C)10^-10 D)10^-12
  86. CHEMISTRY

    H2So4+S2=2S2+H2O
  87. chemistry

    sulphur+iron filings
  88. chemistry

    explain the fire symbol
  89. chemistry

    1.4602 cm x 2.488 cm x 10.399 cm =??
  90. Chemistry

    What is the molar number of PbI2
  91. Chemistry

    What is the mass of 3.01 x 10^22 iron (II) ions, Fe^2+?
  92. Chemistry

    Orbital Hybridization of CH2Cl2?
  93. chemistry

    how many sig figs are in 85,100?
  94. chemistry

    Find the volume of 20.0g of benzene
  95. Chemistry

    convert 58.8 atm to kPa
  96. Chemistry

    explain how to 1kpa to atm
  97. Chemistry

    how to multiply 2.45 mol x 6.02x10^23
  98. chemistry

    Is this correct? 3.84 mol(2 H2O/7.68)????
  99. CHEMISTRY

    hOW TO PREPARE HCL SOLUTION OF 5-7 pH.
  100. Chemistry

    Can you check my answer for the PH question @12:04 11/20?
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