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  1. Alkene reactions
  2. Chemistry investigatory project for the analysis of razor blades
  3. Solubility and Surface area
  4. What is the differences between electron group geomtry and molecular geomtry?
  5. Ph
  6. Why is surface water pH alkaline
  7. Is apsa 80 can help in filteration?
  8. Chemical reaction of potassium plus lead (ii) chlorate?
  9. Balance word equations?
  10. Calculate the volume of 56g of nitrogen gas at 750 mmHg and 25 degrees C. Show work
  11. Boiling Point
  12. One Aluminium atom has a diameter of 0.000000025cm.How many atoms thick is the alumi
  13. Complete the following acid-base reaction?
  14. Electron and Nucleus
  15. Orbitals 4s and 3d
  16. Chemical reactions according to equation
  17. What the pressure
  18. Help!
  19. What is the predicted product from the burning of carbon in charcoal
  20. Empirical formula
  21. What is the general formula for a synthesis reaction
  22. Atoms numbers..
  23. Uses of common laboratory apparatus in chemistry?
  24. A particle that must turn twice before looking the same
  25. Balance this equation for me please? Fe2O3 CO -> Fe CO2
  26. Find the number of moles in 508 g of ethanol (C2H6O)
  27. How many molecules are in 2.10 mol CO2?
  28. Easy question about Boiling Point
  29. Which conductor insulation has a higher thermal rating THHN or EPDM
  30. A 40% PVA solution has a concentration of
  31. Biochemistry glucose standard curve?
  32. How do you separate acetone and water?
  33. What does isoergic mean?
  34. Investigatory project in chemistry especially related to environment for paper ppt
  35. Finiding molarity
  36. What mass of 30.0% Ca(NO3)2 solution contains 60.0 grams of water?
  37. Dropping beta particles
  38. Oxidation number KlO3 and KClO4?
  39. How many moles are in 1.50 x 10 to the 24th molecules NH3
  40. Do you have any sites having something about application of chalk to hard water?
  41. Is the entropy become Larger or smaller ?
  42. Molarity
  43. Neutralization
  44. How many will react with H2SO4
  45. Pauli exclusion principle
  46. What volume will 7.29 moles of CO2 gas occupy at STP
  47. Which metal absorbs more heat copper or aluminum
  48. Resulting molecules and atoms for h2o + NaCl------->
  49. Help with Ionic Equations
  50. I need a diagram of a tri-unsaturated 8 carbon Hydro-Carbon
  51. Atoms
  52. Protons and neutrons
  53. If 28 mLs of a 0.25 molar NaOH solution is used to titrate 14 mLs of a nitric acid...
  54. New chemistry trends?
  55. 9. How many days does it take for 16g of palladium-103 to decay to 1.0g? The half-li
  56. If a week acid has a dissociation constant of 6.4x10-6 what is the pH of a solution..
  57. Fuel additive question
  58. Calculating temperature change. Please help!
  59. Finding mass of unknown acid through titration?
  60. Pl why make ppm solution? Describe details
  61. Can anyone help with this chemistry problem? Balancing with enthalpy changes?
  62. Please help? I don't understand this question!
  63. Stoichiometry Conversions
  64. Please tell me if I Right (oxidation-reductio)
  65. C4H6 is decomposed into elements at 70%
  66. What are the parameters that cause pressure during liquid flow?
  67. Car exhaust
  68. 2 Questions about base and acid
  69. 3 easy questions about potassium
  70. Consumption calculation on ppm
  71. Neutralization Equation
  72. How to know the content of beta carotene in a solution?
  73. How different gas affect pH in aqueous solution
  74. What mass of gold contains the same number of atoms as 117.86 g of Cobalt?
  75. PH with the formula c=n/v
  76. How many atoms of carbon contain the hidrocarbures?
  77. Wasps
  78. Effect of potassium bisulfite as food preservative
  79. Which acids and metals react with each other
  80. Methanol ingestion
  81. Glucosamine
  82. Balance SiCL4+H2o
  83. Result when you add kerosene plus bromine
  84. Nuclear fission is an example how to...
  85. Why does benzaldehyde produce a neutral solution in water?
  86. How would you prepare anhydrous iron(III) chloride, FeCl3?
  87. How to calculate moles of radium?
  88. Chemical Equation for corrosion of Iron in diff. Set-ups
  89. Structural isomers
  90. 2c4h10 13o2=8co2 10h2o write the mole ratio of c4h10 to o2
  91. Lead yields sulfuric acid?
  92. Chemistry word equations
  93. Mechanism of ruff degradation
  94. Chemistry? I'm supposed to find the answers on my own, but any help is appreciated
  95. Help on high school chemistry problems!
  96. Nitrogen
  97. Materials with activity Optical
  98. How to know what things are in given compounds
  99. Chemistry Help
  100. Write the monomer of the polymer
  101. Is it true elements in the same period have the same number of shells (energy level)
  102. Easy Questions 1)find the maximum possible amount 2)Electrical resistance
  103. Why caffeine is use to calibrate hplc
  104. How many moles of oxygen are in 7.4 moles of copper(II) permanganate?
  105. Mending a tear in polypropylene
  106. 1)Solubility In Water. 2) optical activity
  107. Covert 3.00 moles AsS3 to grams
  108. Darzen reaction ? Help for mechanizm?
  109. What is the word equation for: CH4 O2 -> CO2 2 H2O
  110. Solve my chemical equation?
  111. Please help me with this Chemistry question. Please.
  112. How do you crack a chemical?
  113. What is the difference between Octane and Cetane?
  114. Stoichiometry Problem
  115. How long does beer show up in urine test
  116. Concentration of the emulsion
  117. Human chemical reaction
  118. Help me find the volume of this pH
  119. What is the effect of potassium thiocyanate on hair?
  120. 4.67 moles of Li2SO3 dissolved to make a 3.89 M solution?
  121. Determine the final volume of 8.97 grams of (NH4)2CO3 to make a 0.250-molar solution
  122. A graph of EAgCl,Ag against ln c
  123. How does ammonia break down cellulose to produce biofuels
  124. Request for learning material (chemistry )
  125. The synthesis of acetaminophen
  126. How many molecules of H2 arre produced by the reaction of Sn with 20L HF?
  127. What are the number of grams of Li3N?
  128. Precipitation problem
  129. What does the energy released in a nucleon reaction come from
  130. Mol Ratio
  131. I need urgent help with this chemistry problem pleas!
  132. Is it possible to artificially make a blue diamond ?
  133. Solubitlity of compounds
  134. Question about calculation
  135. When hydrogen gas and iodine gas are mixed in a vessel what happens pleas help..
  136. NaOH + CO2 yields NaHCO3 + H2O balanced?
  137. How many moles of hydrogen ions are liberated when 0.4673 mol of xylenesulphonic acid
  138. Help please
  139. Chemical equation
  140. Predict the molecular geometry of the ammonium ion,nh4
  141. How many valence are used to make pi bonds in ethyl acetate . A.8 b.13 c.2 d.26
  142. Cyclohexane is less denser then water?explain how
  143. Whatis nodal plane ?where nodal plane in pie bond of ethene is located?
  144. Even on warming why hexane does not dissolve in concentrated H2SO4?
  145. HCl solution
  146. Decomposition Chemical Reactions
  147. In the bond between a hydrogen atom and an oxygen atom in a water molecule help pleas
  148. Interactions which hold the polypeptide chain together urgent help pleas
  149. Half Oxidation reaction
  150. Creating Solutions - Help on Lab Questions
  151. Polarity
  152. Would heated phosphoric acid have any reaction on basalt fiber?
  153. Calculate overall energy changes in kilojoules per mole for MgF(s) and for MgF2(s).
  154. Help!
  155. How do you balance out chemical equations?
  156. What is the word equation of methane combinded with oxygen?
  157. Moles
  158. Mass, grams, volume..
  159. What is ceramic?what is diffrence between ceramic &stainless steel?
  160. Reactants
  161. BrCl5 has 90degree angles or not ?
  162. What is the molar mass of hydrogen gas
  163. What ions are considered unstable?
  164. According to the octet rule what does a sulfur atom have the tendency to do?
  165. Molarity
  166. What is the oxidation number of the oxygen atom in H2O2
  167. How do you find protein concentration?
  168. The number of moles of oxygen produced/consumed in the experiment..
  169. Why aqueous solution of complex hydrides is basic in nature?
  170. Mass of precipitate formed
  171. Ferrofluid question
  172. Hydrogen gas iron (111) oxide powder yield to form liquid water solid iron powder
  173. Why Na+ ions are smaller than sodium atoms?
  174. Why alkali metals have largest radii?
  175. Why boiling point and viscosity of H2SO4 are high?
  176. Alkali and Alkaline earth metals form only 1 and 2 ions respectively why?
  177. Calculate mass of Fe 56
  178. How long will it take 1200g out of 1600 of this isotopes to decay
  179. Max [Ni2+] ion in H2O @ 25C saturated w/ 0.25 M H2S maintained @ pH 2.9 w/ HCl?
  180. Draw a sketch graph of pV vs T for an ideal gas?
  181. Will reaction occur Fe + KI
  182. Show that (curl h/curl p)at contt temp=-cp(curl T/curlP)at constt h?
  183. I want to know the active ingredients use in a good quality freckle cream.
  184. Why I got the absorbance for glucose is 0.9 and above?
  185. Why do some drug tests show a trace of a drug that was Not used?
  186. Wavelength Calculate
  187. Is there a process to break the bonds in plastics to yield simpler compounds?
  188. Consider the following reaction for which Kp = 0.0752 at 480.0 C. 2 Cl2 (g) + 2 H2O
  189. Chemistry...
  190. How to find predicted volume
  191. What is the equations for lead ii hydroxide plus hydrochloric acid?
  192. Products of CLO3 I H?
  193. Chemistry... help
  194. Chemistry
  195. Chemistry
  196. Smelting furnace problems
  197. If the column of water in the...
  198. Chemistry
  199. Calculate the volume of the gas at 25 degrees C and 975 kPa
  200. What mass of Na2SO4 will result from the reaction of 22.7g of NaOH and 10g of H2SO4 ?
  201. Valence electron
  202. What do you mean by ppm as CaCo3
  203. How to solve for the 3 variables of molality?
  204. Essential oils
  205. How do you get the heat quantity in joules?
  206. How do you get milileters to grams?
  207. How to calculate the amount of heat absorbed by ice as it melts
  208. Uv calibration?
  209. Hplc calibration
  210. When an atom loses an electron
  211. How to calculate moles of acid present?
  212. Relate the number of moles of a substance to the number of particles in it
  213. What test is used to prove that a colorless liquid contains water?
  214. Electrons representation formulas
  215. Chemistry help on finding volume
  216. Electrolysis
  217. Lewis structure
  218. High pressure boilers have low ph, phosphate and other while low pressure boilers
  219. If you react CuSo4 with salt-water what can be produce
  220. Magnesium and hydrocloric acid
  221. How many moles of carbon are needed to react with 5.41 mol SO2?
  222. How many moles of carbon monoxide form at the same time that 0.233 mol CS2 forms?
  223. How many moles of SO2 are required to make 107 mol CS2?
  224. Write skeleton equations
  225. Neutralization of equation
  226. What year was the activity series created?
  227. How to solve for a concentration using equilibrium constant?
  228. When sugar substituted cpd is acid hydrolysed for the determination of absolute confi
  229. Excited state
  230. Why liquid nitrogen has strength to convert anything into ice?
  231. Science balancing equations
  232. Questions about Nuclear meltdown, power plant disasters, control rods, solutions
  233. %total acidty calculation
  234. How to calculate moles remaining?
  235. Equation:reaction between iron(II) solution, conc sulphuric acid and bicarbonate
  236. Write an equation of the following reactiom?
  237. How to find the thickness of aluminum foil in atoms?
  238. Moles
  239. Amide bond structure
  240. Oxygen gas is collected over water at 25 degrees C. The total pressure of the gas is
  241. Low energy in Lewis structure+Quantum numbers.
  242. What mass of 30% solution contains 60.0 grams of water?
  243. Chemistry
  244. VESPR in formula structure of vitamin C .
  245. Optical isomers?
  246. Which type of chocolate melts the fastest?
  247. Dipole and Resonance
  248. Buffer capacity
  249. What type of reaction is NaHCO3 = Na2CO3 CO2 H2O?
  250. Before a trip from New York to Boston, the pressure in an automobile tire is 1.8 atm