chemistry! URGENT

61,546 results, page 53

  1. chemistry

    which of following show cistrans isomerism?
  2. chemistry

    How to determine saturation point of k2Cr2O7?
  3. chemistry

    How do you separate this into ions Na2B4O7
  4. Chemistry

    What is the osmotic pressure of blood plasma at 37°c
  5. chemistry

    How many grams of fe is present in 30g of FeSO4
  6. chemistry

    6 cm/sec to mph i got 9.664mph
  7. chemistry

    Lewis sit structure of CH3OH
  8. Chemistry

    How many moles of ions are in 1.0 mol NH4Cl?
  9. chemistry

    The percentage of nitrogen in magnesium nitride is.?
  10. Chemistry

    What is the total no. Of atoms present in 25.0 mg of camphor
  11. Chemistry

    Calculate the mass in grams of 2.5*10^20 NO molecules
  12. chemistry

    How we make 0.02ppm solution in 25ml?
  13. Chemistry

    A Solution Has A PH Of 3.4.What Is Its Hydrogen Ion Concentration?
  14. Chemistry

    Zn(s)+HCl(aq)--> ZnCl2(aq)+H2(g) net ionic??
  15. chemistry

    What is the wavelength of radiation whose frequency is 5.93 x 10^14 s-1
  16. Chemistry

    What is the solvent in70% of alchol solution?
  17. Chemistry

    How to prepare 250ml of 2.5m solution of HCL
  18. Chemistry

    Formula of (ch3ch2)2chch2ch(ch3)2
  19. Chemistry

    complete and balance NaHCO3 (aq) + H2SO4 (aq)
  20. Chemistry 1

    Calculate q when 22.0 g of water is heated from 25.0°C to 100.0°C.
  21. Chemistry

    Solubility of PbCl2 in brine solutions
  22. Chemistry

    how many chloride ions are in 0.28 mol MgCl2?
  23. Chemistry

    How do i prepare KH2PO4-KOH buffer 0.2 M of pH 7.4?
  24. Chemistry

    Given 1 cc of Zinc and 1 cc of Cr What is the mass difference?
  25. chemistry

    Which is more ionic LiF or NaF and why
  26. Chemistry

    What is the value of [h3o] in a solution where [oh]=4.20x10^-6
  27. Dr.Bob Chemistry

    Is HOET associated with E1 or E2? I think it is E2.
  28. Chemistry

    h2po4(aq) + co34(aq) hco3 (aq) + hpo42 (aq)
  29. Chemistry 30

    How to find Oxidation Numbers of any component
  30. Chemistry

    How many aluminum atoms are there in 15.0mg of Al2O3?
  31. Chemistry

    How much Zn is mixed with 2HCl = ZnCl + H2 ?
  32. chemistry

    density of sand =3.00g/cm3?
  33. chemistry

    determine d no of moles in d following samples 2.5*10
  34. chemistry

    Determine the [OH^-] of a solution that is 0.145 M in CO3^2-.
  35. Chemistry

    Iron+CON Hydrochloric acid =?
  36. chemistry

    How is sulphur manufactured in a large scale
  37. Chemistry

    What will burning of .3 liters of C2H2 produce?
  38. Chemistry

    How many grams of AlCl3 are produced when 53.0 g of Al reacts?
  39. Chemistry

    Calculate the pH of HCL if you have 10.0g in 5.0L of solution
  40. Chemistry

    Compunds formed by NH4+ and NO3-
  41. Chemistry 112

    Can rate of law be a decimal??
  42. Chemistry

    How many representative particles are in 2.5 mol H2O2?
  43. Math/Chemistry

    How to rearrange the given equation for Ao: ln (Ao/A) = k*t
  44. Math/Chemistry

    How to rearrange the given equation for A: ln (Ao/A) = k*t
  45. chemistry, science

    how many moles of he atoms are there in 0.02g of he?
  46. Chemistry

    Identify the chemical reactants in ZnCl2(aq)+H2(g)?
  47. Chemistry

    How to calculate the percentage of chlorine isotopes
  48. chemistry

    What is the gas produced when lime is heated?
  49. chemistry

    . What is the pH of a solution in which 15 mL of 0.10 M NaOH is added to 25 mL of 0.10 M HCl?
  50. Chemistry

    what is the oxidation number of Carbon in C6H12? thank you!
  51. Chemistry

    how many sigma and pi bonds in hooc-cooh
  52. Chemistry

    How many g of KCl are need to make 2.5 L of a 10% (w/v) solution?
  53. chemistry

    how can I calculate the limiting reactor in a reaction?
  54. Chemistry

    What is the equilibrium constant for the following reaction? 3A + 2B <---> 2C
  55. Chemistry

    How would I balance Al2 + I2>ALI3
  56. Chemistry

    Calculate the ZnCO3 in a buffer solution with a pH of 9.83
  57. chemistry

    4Fe2(S)+ 11H2O(g) to give 2Fe2O2
  58. Chemistry

    What is the molar mass of feso4 . 7h2o
  59. Chemistry

    What are the changes associated with a chemical reaction?
  60. Chemistry

    Kg/m^2 is the unit of pressure how i prove it. Please help me.
  61. chemistry

    how to calculate the oxidation state for 'cr' in K2CRO4 ?
  62. Chemistry

    What is the molecular structure of methylated spirit
  63. Chemistry

    If it takes 22.75 mL of 1.75 M H3PO4 to neutralize 14.90 mL of Al(OH)3, what is the molarity of the Al(OH)3?
  64. Chemistry

    How many moles of Cu are required to produce 16.25 g of H2O
  65. Chemistry

    How many moles of Cu are required to produce 16.25 g of H2O
  66. chemistry

    A single, neutral iodine atom has
  67. Chemistry

    Is thw positive valence of AlCl3 1 or 3 why?
  68. chemistry

    Briefly explain how the neutrons were discovered.
  69. Chemistry

    What is the equilibrium constant for H2CO3(aq)->2H+(aq)+CO3-2(aq)
  70. chemistry

    What is the difference between belief and knowledge? 
  71. chemistry

    how is iodine bad for human health
  72. chemistry

    how is rubbing alcohol a homogenous mixture ??
  73. chemistry

    what is a chemical property of calcium chloride?
  74. Chemistry

    How can we recover NaNO3 from an unsaturated solution
  75. Chemistry

    What is the mass of a phosphorus triioxide molecule?
  76. Chemistry

    What is the mass, in grams, of 7.18 x 10^24 molecules of chlorine?
  77. chemistry

    why is it important to know how to separate solids from liquids
  78. Chemistry

    How many grams of N2F4 can be produced from 361 g F2?
  79. Chemistry

    1-1H + 3-1 H yield 4-2 He What is energy in Kj per mole?
  80. Chemistry

    The pH of a solution halfway to the equivalence point
  81. chemistry

    Does N2O violates the octet rule?
  82. chemistry

    Does N2O violates the octet rule?
  83. Chemistry

    H2O2 → H2O + O2 is this a balanced equation?
  84. Chemistry

    What is the smallest metal in Group 4A? Is it Carbon?
  85. Chemistry

    In an IR spectrum at wavelength = 1454cm-1 its where a CH2
  86. Chemistry

    Is magnesium Sulfate ionic or covalent and why?
  87. Chemistry

    If a 0.200M solution of an acid, HX, has a pH=1.00, The Ka= a. 2 x 10^-1 b. 2 x 10^-2 c. 1 d. 1 x 10^-1 e. 1 x 10^-3 This is what I did: HX <===> H + X 10^-1=[H] 0.1=[H] [H]=[X] Ka = (H)(X)/HX Ka = (0.1)(0.1)/0.200 Ka = 0.05
  88. chemistry

    Rounding .8635 to 1 significant number? Is it .8?
  89. chemistry

    Provide an example of a spontaneous reaction
  90. Chemistry

    What is the mass of radon if its density is 9.73 g/l at stp
  91. chemistry

    0.1 mol of HCl is added to 1 L of water. What is [H+] and [OH-]? Thank you!
  92. CHEMISTRY

    STEPS ON CALCULATING DEHYDRATION OF CRYSTALS
  93. Chemistry

    What happens to particles in thermal expansion?
  94. Chemistry

    What is the electron configuration of the element with 27 protons?
  95. Chemistry

    How many carbon mol in 2.2grams of CO2
  96. Chemistry

    What is the chemical reaction for: The oxidation of 2-pentanol
  97. Chemistry

    What is the chemical reaction for: The oxidation of methanol
  98. Chemistry

    Express 900.00 in scientific notation
  99. CHEMISTRY

    Name of CH3CH(Br)CH=CHCH(CH3)2.
  100. Geography. plz help its urgent.

    Ok, so i was given an essay question to do. In a well developed essay, list and explain the three types of immigrants that Canada accepts. Explain why the Canadian Government would want to allow such immigrants to enter into Canada. Pleasee help. I know already the three types...
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