chemistry! URGENT

61,546 results, page 38

  1. chemistry

    how to convert from 40.grams to tons
  2. chemistry

    state symbol for 2Mg
  3. chemistry

    a) How many micrometers make 0.4 m? b)How many µg in 4.732 mg?
  4. chemistry

    What are the oxidation states of chromium -6(Cr^+6).
  5. Chemistry

    how many grams of F are in 335 g of CaF2?
  6. chemistry

    Calculate the volume of 0.05 kg of bromine. (D=3.12 g/ml)
  7. chemistry

    Calculate the volume of 0.05 kg of bromine. (D=3.12 g/ml)
  8. bio chemistry

    why is polarity important
  9. Chemistry

    How do you calculate the concerntartion of vinegar?
  10. Chemistry

    convert 548mL to cm3
  11. Chemistry

    Determine the pH of a 0.10 M MgCl2 solution.
  12. Chemistry 105

    How many mL of O2 will form from 55.2g KClO3?
  13. CHEMISTRY

    how many elements in (NH4)2SO4
  14. chemistry 111

    How many moles are in 6.35 g of NaOH
  15. Chemistry

    Zn + I2 ---> Zn ^+2 + 2I- will this reaction occur spontaneously?
  16. chemistry

    WHAT PROPERTY OF SOLUTION IS DESCRIBED BY ITS pH?
  17. chemistry

    DOES Mg(OH)2 HAVE A pH greater than 7 or less than 7
  18. Chemistry

    Identify the equation for which Keq= [Cu+]2[S2-]
  19. Chemistry

    How many valence electrons are in Na then in the 1+ion of Na?
  20. Chemistry

    The Aufbau Principle is concerned with what?
  21. Chemistry

    What is considered a secondary alcohol ?
  22. chemistry

    4g of h2 reacts 70 g of ci2 and forms
  23. chemistry

    how do u find percent abundance?
  24. Chemistry

    Why water is a weak electrolyte?
  25. chemistry

    what is oxidation state of NO2
  26. chemistry

    Volume of 0.185 mol . L-1 and 0.74 M
  27. chemistry

    How many moles of NH3 are produced from 48.5 g of H2?
  28. chemistry

    STP conditions are considered to be
  29. chemistry

    1 atmosphere of pressure is equivalent to
  30. chemistry

    If the pH of a particular solution is 2.08, then the [OH -] must be:
  31. Chemistry

    What is the pH for a solution with a hydrogen concentration of 1.00 x 10^6?
  32. chemistry

    How many moles NaOH in 66.4 mL of 0.1 M solution?
  33. chemistry

    What is the pH of 14g of Ca(OH)2 dissolved to 350ml
  34. Chemistry

    What is the balanced equation for Ba(OH)2 + HCl?
  35. chemistry

    What is the volume of 2.10 lb of ethylene glycol?
  36. chemistry

    what substances form if we add 3 O 1 Na 1 C and 1 H
  37. chemistry

    What isthe ionization of water?
  38. chemistry

    calculate[OH-],[H+] of a .20 M solution of triethylamine Kb=4.0*10^-4
  39. chemistry

    how many significant figures in 200600
  40. chemistry

    what causes the the fermentation of wine?
  41. Chemistry

    Why do metals tend to be malleable?
  42. chemistry

    how do i find polyatomic ions?
  43. chemistry

    convert HCHO to CH3CHO
  44. Chemistry

    What is the stoichiometry of elements in c2h6
  45. chemistry

    What volume does 16.0g of o2 occupy at stp
  46. Chemistry

    What is the chemical definition of a base?
  47. chemistry

    how can H2O and ethanol be separated
  48. Chemistry

    What is chemical name for Na2Cr2O2?
  49. chemistry

    ch3o what is functional group
  50. chemistry

    How many molecules in 8.221g PbO2?
  51. chemistry

    A Ca(OH)2 solution has a pH of 8.0. [H3O+] = 1.0 x 10^-8 and [OH-] = 1.0 x 10^-6 Determine [Ca(OH)2].
  52. chemistry

    What is the color of a neon light?
  53. chemistry 103

    what is electron cofiguration?
  54. Chemistry

    How do you find the partial pressure?
  55. Chemistry

    How many significant figure in 4.297*10^4
  56. chemistry

    how do you do electron dot diagrams?
  57. Chemistry

    How many electrons are in oxide and in oxygen
  58. chemistry

    what type of reaction is Al+S8=Al2S3
  59. chemistry

    how to change mg/mL into mmol/L?
  60. chemistry

    complete KH2PO4(aq)+KOH(aq)
  61. chemistry

    draw amino acid.
  62. Chemistry Help Please

    What is the OH- concentration of a solution that has a pH of 9.66?
  63. Chemistry

    How to find [H3O+] when i have [OH-]?
  64. Chemistry

    what are the pH and the pOH of 0.125M HCIO4?
  65. Chemistry

    Why B(CH3)3 cannot be Lewis Base??
  66. Chemistry

    How many stereoisomers are possible for threonine?
  67. Chemistry help

    hcl+mg(oh)2->mgcl2+h20
  68. chemistry

    how to prepare 0.216M of 37%benzaldehyde
  69. chemistry

    What are the total grams of iron
  70. Chemistry

    How many atoms are there in a 4.5 g sample of water?
  71. Chemistry

    How many atoms are there in a 15.0-g sample of KBr?
  72. Chemistry

    How many atoms are there in a 15.0-g sample of KBr?
  73. chemistry

    a. What is the net charge on valine at pH 1? b. at pH 7? c. at pH 14?
  74. chemistry

    what is the hcl of 2.00x 10 squared mL of 0.51
  75. chemistry

    How can you prevent or stop eutrophication
  76. chemistry

    specific heat capacity
  77. chemistry

    how to calculate PH and POH {OH-) = 1.0 *10 to -11 power M?
  78. Chemistry

    The PH of a 1.3M HF solution is 3.18. What % of the acid ionized?
  79. Chemistry

    a 2.0M solution of Hbr will have what pH?
  80. chemistry

    chemical structure CH3C5H9
  81. chemistry

    How many molecules are in 25 grams of NH3
  82. chemistry

    How many molecules are in 25 grams of NH3
  83. chemistry

    How do you calculate molarity of NaOH?
  84. Chemistry

    What alkane effuses at 1/5 the rate of He
  85. chemistry

    How Many H bonds in Oblate Polyhedra?
  86. CHEMISTRY

    How to make a 2% iron solution?
  87. Chemistry

    Is phosphate PO3 or PO4?
  88. chemistry

    what is the volume of a sphere that has a radius, r = 3 in.
  89. chemistry

    the equation n2+3h2 2nh3
  90. chemistry

    2180 nanometer =?meter
  91. chemistry

    why does ammonia reacts with acid?
  92. chemistry

    Zn salts are colour less.Why?
  93. CHEMISTRY

    HOW MANY MOLES OF LITHIUM IS 2.69XE9
  94. CHEMISTRY

    HOW MANY MOLES OF CALCIUM IS 139g OF Ca?
  95. CHEMISTRY

    HOW MANY GRAMS OF CALCIUM IS 3.08 MOL OF Ca?
  96. Chemistry

    Why is the use of tin limited?
  97. Chemistry

    what is 39.5 grams of HCl in moles?
  98. chemistry

    how to find percent yield
  99. chemistry

    How many H atoms are in 7.52grams of C3H8?
  100. chemistry

    what is the name of the compound C2H4?
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