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  1. Car exhaust (3 replies)
  2. What are the parameters that cause pressure during liquid flow? (1 replies)
  3. C4H6 is decomposed into elements at 70% (5 replies)
  4. Please tell me if I Right (oxidation-reductio) (8 replies)
  5. Stoichiometry Conversions (1 replies)
  6. Please help? I don't understand this question! (0 replies)
  7. Can anyone help with this chemistry problem? Balancing with enthalpy changes? (3 replies)
  8. Pl why make ppm solution? Describe details (2 replies)
  9. Finding mass of unknown acid through titration? (1 replies)
  10. Calculating temperature change. Please help! (6 replies)
  11. Fuel additive question (2 replies)
  12. If a week acid has a dissociation constant of 6.4x10-6 what is the pH of a solution.. (1 replies)
  13. 9. How many days does it take for 16g of palladium-103 to decay to 1.0g? The half-li (1 replies)
  14. New chemistry trends? (1 replies)
  15. If 28 mLs of a 0.25 molar NaOH solution is used to titrate 14 mLs of a nitric acid... (5 replies)
  16. Protons and neutrons (3 replies)
  17. Atoms (6 replies)
  18. I need a diagram of a tri-unsaturated 8 carbon Hydro-Carbon (2 replies)
  19. Help with Ionic Equations (1 replies)
  20. Resulting molecules and atoms for h2o + NaCl-------> (2 replies)
  21. Which metal absorbs more heat copper or aluminum (2 replies)
  22. What volume will 7.29 moles of CO2 gas occupy at STP (2 replies)
  23. Pauli exclusion principle (3 replies)
  24. How many will react with H2SO4 (1 replies)
  25. Neutralization (1 replies)
  26. Molarity (3 replies)
  27. Is the entropy become Larger or smaller ? (6 replies)
  28. Do you have any sites having something about application of chalk to hard water? (2 replies)
  29. How many moles are in 1.50 x 10 to the 24th molecules NH3 (4 replies)
  30. Oxidation number KlO3 and KClO4? (1 replies)
  31. Dropping beta particles (1 replies)
  32. What mass of 30.0% Ca(NO3)2 solution contains 60.0 grams of water? (1 replies)
  33. Finiding molarity (3 replies)
  34. Investigatory project in chemistry especially related to environment for paper ppt (1 replies)
  35. What does isoergic mean? (1 replies)
  36. How do you separate acetone and water? (7 replies)
  37. Biochemistry glucose standard curve? (3 replies)
  38. A 40% PVA solution has a concentration of (1 replies)
  39. Which conductor insulation has a higher thermal rating THHN or EPDM (1 replies)
  40. Easy question about Boiling Point (8 replies)
  41. How many molecules are in 2.10 mol CO2? (3 replies)
  42. Find the number of moles in 508 g of ethanol (C2H6O) (1 replies)
  43. Balance this equation for me please? Fe2O3 CO -> Fe CO2 (1 replies)
  44. A particle that must turn twice before looking the same (2 replies)
  45. Uses of common laboratory apparatus in chemistry? (1 replies)
  46. Atoms numbers.. (5 replies)
  47. What is the general formula for a synthesis reaction (1 replies)
  48. Empirical formula (2 replies)
  49. What is the predicted product from the burning of carbon in charcoal (1 replies)
  50. Help! (1 replies)
  51. What the pressure (1 replies)
  52. Chemical reactions according to equation (15 replies)
  53. Orbitals 4s and 3d (2 replies)
  54. Electron and Nucleus (2 replies)
  55. Complete the following acid-base reaction? (1 replies)
  56. One Aluminium atom has a diameter of 0.000000025cm.How many atoms thick is the alumi (2 replies)
  57. Boiling Point (2 replies)
  58. Calculate the volume of 56g of nitrogen gas at 750 mmHg and 25 degrees C. Show work (1 replies)
  59. Balance word equations? (1 replies)
  60. Chemical reaction of potassium plus lead (ii) chlorate? (1 replies)
  61. Is apsa 80 can help in filteration? (0 replies)
  62. Why is surface water pH alkaline (1 replies)
  63. Ph (1 replies)
  64. What is the differences between electron group geomtry and molecular geomtry? (6 replies)
  65. Solubility and Surface area (7 replies)
  66. Chemistry investigatory project for the analysis of razor blades (1 replies)
  67. Alkene reactions (1 replies)
  68. What are applications of quantum chemistry (1 replies)
  69. How to synthesis the following compound using Grignard reageant (3 replies)
  70. Help on Grignard Reactions (1 replies)
  71. How many grams of NaOH flakes should I use to obtain 40% NaOH in a 2000ml solution? (2 replies)
  72. Alkene and Alkane problem (9 replies)
  73. Force between particles (11 replies)
  74. Carbon dioxide and carbon yield? (2 replies)
  75. About lewis structure of SI6 (2 replies)
  76. Some advantages of using litmus and cabbage juice indicators? (2 replies)
  77. Is fog watervapor ? Explain your answer. (2 replies)
  78. CaO3>CaO Co2 calculate the munber of moles of CO2 when 500g of CaO is produced (1 replies)
  79. Boiling Point (3 replies)
  80. Mass (1 replies)
  81. Formation of ester (2 replies)
  82. Writing balance equation (2 replies)
  83. Air concentration... (3 replies)
  84. At what temperature CaCO3 decomposed when p=1 atm ? (3 replies)
  85. Thermodynamics (1 replies)
  86. Nomenclature compounds (1 replies)
  87. My science project: What are the effects of hard water and soft water on hair dye? (5 replies)
  88. Limiting reactants (1 replies)
  89. Explain the effect of water on the conductivity of glacial acetic acid? (2 replies)
  90. What is the balanced equation when NH3 reacts with H2SO4? (6 replies)
  91. Chemistry (2 replies)
  92. Calculat the wavelength (1 replies)
  93. Hcn (4 replies)
  94. Why we add HCL during precipitation BASO4 (1 replies)
  95. Find the density (5 replies)
  96. Chemistry question about mass (1 replies)
  97. PV/nRT versus P graph (2 replies)
  98. Balance Al(NO3)3 KCl? (1 replies)
  99. Co2 h2o cr2h7o9 (6 replies)
  100. How does baking soda reduce the nopalitos slime? (0 replies)
  101. 0.750 mol NaCI dissolved in 4.50Lof solution (2 replies)
  102. How can I Write Empirical formula (5 replies)
  103. Cuso4 kno3 (1 replies)
  104. How to change a fat soluble element into a water soluble chemical compound (2 replies)
  105. Why sodium get burn in water? (7 replies)
  106. What is its half-life? (2 replies)
  107. How long has a body been dead if the temperature is 33.1 degrees? (6 replies)
  108. Equilibrium constant (5 replies)
  109. Reaction? (1 replies)
  110. What is the final product of gasoline mixed with H2O2 (6 replies)
  111. Where is francium located (1 replies)
  112. Uses of potasium bisulphite as food preservative (1 replies)
  113. How to find the heat of formation of the solution? (1 replies)
  114. Stoichiometry HELP (1 replies)
  115. What are natural pH indicators (2 replies)
  116. What could be the best title for an Investigatory Project about chemistry? (1 replies)
  117. Calculate the theoretical amount of CaCl2 (2 replies)
  118. Rates of chemical reaction:a clock reaction? (2 replies)
  119. Reaction (1 replies)
  120. What is the molecular formula of sucrose (6 replies)
  121. Rate law (7 replies)
  122. If the reaction is first order with respect to A? (1 replies)
  123. Explain, using intemoleclar forces why iodine dissolves in hexane but not water (1 replies)
  124. Is it correct to pure water inside acid (1 replies)
  125. If you mutiplied a number by itself and repeated could you reach an atomic number? (2 replies)
  126. WOuld it be possible to make pure francium? (10 replies)
  127. Stone melting chemicals (2 replies)
  128. Need help... 8th grade science project on Hair dye *VS* hard/soft water? (3 replies)
  129. Chemisrty help (1 replies)
  130. What would happen if you mixed H2O with CO2? (4 replies)
  131. How many moles of H2 are produced if you have 6.22 moles of HCL (2 replies)
  132. A calorimeter contains 2 (1 replies)
  133. HELP! Science project using hair dye VS peroxide (1 replies)
  134. A specimen of rich gold ore weighs 309.3g a (1 replies)
  135. Number of O atoms in 9.5 10-3 g CuSO45 H2O (1 replies)
  136. Is freshis mowing lawn and dijestng food a chemical change (1 replies)
  137. How will you calculate 100ppm of gibberllice acid (1 replies)
  138. Density of gases and kinetic theory (6 replies)
  139. Common laboratory apparatus (1 replies)
  140. What effect does doubling [(S2O8)^2-] have on the rate? (7 replies)
  141. Rate Constant (1 replies)
  142. Half life equations (1 replies)
  143. Half life equations (1 replies)
  144. Half life equations (1 replies)
  145. Structure of cr-edta complex (1 replies)
  146. Drain off watwer pot can not obtain water IN STABILIZER TOWER IN GAS PLANT (2 replies)
  147. How to identify Lewis Acid's and Bases? (3 replies)
  148. Anion (1 replies)
  149. How many grams of barium in 1.82 barium hydroxide (3 replies)
  150. I am taking iodine and my grey hair is turning red could it be the Iodine? (0 replies)
  151. Copper silver nitrate equation (13 replies)
  152. Molecular formula (3 replies)
  153. How is brewers yeast different from regular active baking yeast? (1 replies)
  154. Need conductivity help (5 replies)
  155. Gravimetric analysis. (1 replies)
  156. Help with writing balanced molecular equation of Electrophilic aromatic substitution (4 replies)
  157. Find the concentration of the original undiluted cerium sulfate solution? (1 replies)
  158. How to increase the production of benzene? (2 replies)
  159. Molarity Problems, Please Help (1 replies)
  160. How can we prove that a colorless liquid placed before us is pure water (2 replies)
  161. How many moles of O2 were produced in a decomposition reaction of H2O2 if the... (10 replies)
  162. If you decomposed 10.00 mL of 100% H2O2, how many moles of O2... (2 replies)
  163. Calculate: Heating 235 g of water from 22.6 degrees C to 94.4 degrees C in a microwav (1 replies)
  164. Balance this equation H2 + N2 (1 replies)
  165. How do you balance chemical equations (1 replies)
  166. What are the consequences of driving if one's reaction time is slow rather than quick (1 replies)
  167. What does alcohol, changing radio stations, or talking do to your reaction time (2 replies)
  168. What relevance does reaction time have to driving safely (1 replies)
  169. How reaction is a measure of change over time (1 replies)
  170. Orbital notation examples (1 replies)
  171. Explain how it is possible for one carbon atom to bond to four hydrogen atoms (1 replies)
  172. Specific heat (2 replies)
  173. How do you find the enthalpy of a salt? (1 replies)
  174. How to keep fresh fruit and vegetable in a shop? (1 replies)
  175. What is the bond angle in the ClO2- ion? (2 replies)
  176. How many atoms are there in 3.60 moles of sulfur (S)? (1 replies)
  177. Dissolving paper (2 replies)
  178. If an automobile travels 245 my with a gas mileage of 21.5 mi/gal how many kilograms (1 replies)
  179. 0.310 mol of reacts with 0.810 mol of oxygen. How many moles of water are produced (8 replies)
  180. Is steam hotter than boiling water? (2 replies)
  181. I need help with an organic Chem Problem. Please Help (6 replies)
  182. Why ice melts in water (5 replies)
  183. How do ions obtain electons and become atoms in electrolysis? (1 replies)
  184. How to safely dilute chemicals (1 replies)
  185. Potassium to chemical equation (1 replies)
  186. Carbon heat diffuser construction (0 replies)
  187. What is the volume of a liquid who meniscus is exactly between 60ml and 70ml (1 replies)
  188. 82800 turned into a number with three significant figures (4 replies)
  189. How much heat would be required to raise the temperature (1 replies)
  190. What is the chemical that makes curry spicy? (4 replies)
  191. Using kerosene instead of transformer oil (1 replies)
  192. How to calibrate UV (0 replies)
  193. What is the material that decrease or stops the effect of caffeine ? (7 replies)
  194. Can maleic acid be formed from this solution? (2 replies)
  195. Conducting polymers (16 replies)
  196. Starting from the Basic (13 replies)
  197. Order of the reaction with respect to the reactant concentration? (1 replies)
  198. Chemical diagram of spandex joined to spandex (2 replies)
  199. What is the difference between coated vs. Uncoated Calcium Carbonate (CaCO3)? (1 replies)
  200. What is the difference between parts injected in PVC and parts Injected in ABS? (1 replies)
  201. How can I standardize unknown hcl solution (1 replies)
  202. Chemistry apparatus and their uses (2 replies)
  203. What types of bond forming are there? (1 replies)
  204. What is the different between MP Biomedicals and Acros Organics (0 replies)
  205. Prepare 1 ppm solution of oil (1 replies)
  206. What are the products of BaCl + NaCO (4 replies)
  207. Chemical equation for acids (2 replies)
  208. Electeodeposition techniques (1 replies)
  209. Why sulphate decrease in group 2 (1 replies)
  210. Hybridisation (2 replies)
  211. Lab Equipment where the best place to get it (2 replies)
  212. Chem (2 replies)
  213. How to claculate certain chemical required to prepare a solution of certain strength (1 replies)
  214. A recipe for applesauce requires 3.0 cups of apple juice. You only have a metric meas (1 replies)
  215. I want to calculate 50 ppm from available chemical CuSo4 in the market, how can I (1 replies)
  216. Formaldehyde Formalin 37% (5 replies)
  217. Laboratory apparatus and their uses (1 replies)
  218. Which products are produced by counter current granulation method ? (0 replies)
  219. Resolution caliberation of spectro photometer (1 replies)
  220. How much sodium hypochlorite (2 replies)
  221. How to convert 250cc to ounces (2 replies)
  222. Rates of chemical reaction (2 replies)
  223. You are comparing two unknown liquids of similar molecular mass. (4 replies)
  224. Will the ETG test detect even one drink? (5 replies)
  225. Can I get a scholarship award with a high GRE score (1 replies)
  226. Ph of copper concentrates (4 replies)
  227. Does Oxidation Affect The Ability Of Hydroquinone? (0 replies)
  228. How can calibrate uv visible spectrometer (1 replies)
  229. Will a substance that is water soluble also dissolve in dipropylene glycol? (1 replies)
  230. Stain with photo grade hydroquinone (0 replies)
  231. Question on mole concept. (1 replies)
  232. Naming chemicals (2 replies)
  233. Is it safe to use polyurethane foam & a elastomeric coating only as hot tub cover? (1 replies)
  234. How many oxygen atoms on the right side of the following equation? (3 replies)
  235. Calcium:can you combined coral calcium and calcium citrate in your diet? (1 replies)
  236. Hydrochloric acid as a cleaner (1 replies)
  237. Calculating the number of moles (1 replies)
  238. Calibration spectrophotometer method (0 replies)
  239. Chemical (2 replies)
  240. How many moles of O 2 are there in a sample of 300 moles of clean dry air (1 replies)
  241. Mineral water in polyethylene terepthalate bottle gives drainage odour need source (1 replies)
  242. What is the procedure to prepare ppm solutions? (2 replies)
  243. The ph of many cola - type drinks is about 3.0. How many times greater is the hydron (1 replies)
  244. Laboratory apparatus and their uses (1 replies)
  245. Help finding isomers of C4H7I (1 replies)
  246. Molecules I have a mass of NaCl -0.0001 how do I calculate moles of NaCl? (1 replies)
  247. What are the steps for solving the redox equation 2P+3Br2=2PBr3. Need reducing agent (3 replies)
  248. Price of manufacture reactor for nanoparticle synthesis (0 replies)
  249. Kmno4 naoh fe= ? (2 replies)
  250. Diffusion (1 replies)