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  1. How can I prevent myself and my team from being killed by Phosphine (PH3) ? (5 replies)
  2. Tin (IV) iodide is soluble in acetone? (0 replies)
  3. If 127g of CuO r allowed to react many with 7.50g of h2 how g of copper are produced? (1 replies)
  4. A sample of a compound boils away completely as is melting point. Is it a mixture? (2 replies)
  5. The question about vaporize technology in medicine (6 replies)
  6. How to isolate RR Zeaxanthin from Paprika Oleoresin? (0 replies)
  7. Spectator ions (1 replies)
  8. Chemistry- Gas law help (1 replies)
  9. Household ammonia (1 replies)
  10. Rate of reaction (1 replies)
  11. Oleic acid (1 replies)
  12. Chemistry-Surface Tension (0 replies)
  13. Redox conceptual question help!! (3 replies)
  14. Chemistry: Symbol for Nucleus (2 replies)
  15. PH acids bases and salts (1 replies)
  16. what is the word equation for the decomposition of aluminum antimonide (1 replies)
  17. Chemistry Question (1 replies)
  18. The equivalent conductance of 0.20 N solution of MgCl2 is 97.1 2—1 ^ S cm eq. at 25 C (0 replies)
  19. What is the ΔH° for the precipitation of 345.1 g of calcium sulfate from aqueous solu (0 replies)
  20. Chemistry question (3 replies)
  21. Graph of pv/t vs t (3 replies)
  22. Chemistry Answers Free (0 replies)
  23. If 22.0 g of CO2 have a pressure of 1.00 atm at 300 K, what is it's volume? (1 replies)
  24. Relative Mass (1 replies)
  25. Organosilicon compound (3 replies)
  26. Iron (2 replies)
  27. Need to write and balance this equation (1 replies)
  28. Law of mass reaction (0 replies)
  29. Heat absorbed (0 replies)
  30. Types of reactions (1 replies)
  31. How many moles of reagent remains? (0 replies)
  32. What is the mass of carbon dioxide formed? (0 replies)
  33. What is the volume of Sodium Hyrdoxide needed to neutralize the acid (2 replies)
  34. Solution Concentrations... I need help! (1 replies)
  35. Acid base hydrolysis (0 replies)
  36. Acid base redox coneptual and calculation (1 replies)
  37. Alkalinity vs basicity (0 replies)
  38. Chem (1 replies)
  39. What is the oxidation for (1 replies)
  40. How to balance this equation (1 replies)
  41. Themochemistry (2 replies)
  42. A chemist at a pharmaceutical company is measuring equilibrium constants for reaction (0 replies)
  43. Name the compound (2 replies)
  44. Synthesis of Benzocaine (0 replies)
  45. Does Hypoflourus acid (H-O-F) show intramolecular hydrogen bonding? (0 replies)
  46. How do I balance the redox reaction NO3−(aq) + Mn(s) → NO(g) + Mn2+(aq)? (0 replies)
  47. Chemistry: Molecular Shapes? (3 replies)
  48. Gas laws (1 replies)
  49. How many electrons are transferred in the following reaction? (3 replies)
  50. Nernst Equation Question (voltage) (1 replies)
  51. 3.01 molecules of compound B have a mass of 9g. Calculate molar mass. (1 replies)
  52. Chemistry Question - Avagadro's Number lab (0 replies)
  53. PV=nRT (1 replies)
  54. Chemistry (2 replies)
  55. Protons, neutrons, and electrons are all found in the nucleus of an atom. (3 replies)
  56. Chemistry (2 replies)
  57. a carbonate of metal has the formula X2CO3 .the equation for the reaction of X2CO3 (0 replies)
  58. Hydrofluoric acid (1 replies)
  59. Chemistry (0 replies)
  60. An 80.0-gram sample of gas was heated from 25*C to 225*C. During the process, 346 J o (1 replies)
  61. Wittig reaction - unaffected functional groups (0 replies)
  62. Molar ratio reactions (0 replies)
  63. How to chck acidity in ethyl acetate (0 replies)
  64. Differing sum of subatomic particles and mass of an atom (1 replies)
  65. Safe Shot glass fillers (1 replies)
  66. Calculate the amount of heat to change 10g of ice at -10C to steam at 100C (in cal's) (0 replies)
  67. Construction polyurethane paste for joints of buildings (1 replies)
  68. Chemistry-atomic structure (2 replies)
  69. Organic chemistry (1 replies)
  70. Where do I find chemicals not sold in stores (14 replies)
  71. Phosphoric Acid (6 replies)
  72. How to break carbon die oxide bond (2 replies)
  73. Chemistry (1 replies)
  74. Chemistry Question (0 replies)
  75. An object has a mass of 3.15oz and a volume of 0.1173L. What is the density (g/mL) of (1 replies)
  76. What is molarity (1 replies)
  77. Examples of mixtures (1 replies)
  78. Can I strip gold from gold fingers with used car battery acid (0 replies)
  79. (6.6262 x10^-34 j·s)(2.9979x10^8 m/s)/ 3.85x10^-8m (1 replies)
  80. Which functional group in oseltamivir interacts with the carboxylate ion and why? (1 replies)
  81. Law of Multiple Proportions (1 replies)
  82. Fizzy sensation (5 replies)
  83. Lactic acid peel with 90% pure lactic acid. (2 replies)
  84. Biochemistry - Total Concentration Question involving Ammonia in Blood/Urine? (0 replies)
  85. How to neutralize the acidity in ethyl acetate (1 replies)
  86. Is 101B General College Chem the same as Chem 32 Intro to Medical Chemistry (2 replies)
  87. Pytochemical analysis journals (0 replies)
  88. Ions are present in a standard 300 mg of feso4. (1 replies)
  89. How is trigonometry used in Chemical Engineering? (2 replies)
  90. CaCO4 (2 replies)
  91. Chemicals visible under certain conditions? (1 replies)
  92. Group eight in the periodic table (1 replies)
  93. Chemistry question (0 replies)
  94. I need some help balancing this equation (11 replies)
  95. For heating copper oxide in sulfuric acid what is the chemical equation?? (3 replies)
  96. Freezing properties (0 replies)
  97. Organic chemistry (0 replies)
  98. Does polypropylene react with polyvinyl chloride? (3 replies)
  99. Chemistry (5 replies)
  100. What is the purpose of calibrating a blood chemistry analyzer ? (2 replies)
  101. In chemical reaction of cellulose to carboxymethylcellulose.suggest suitable catalyst (0 replies)
  102. Reaction (2 replies)
  103. What is right solvent for 3,3'-DIAMINOBENZIDINE polymer? (0 replies)
  104. What happens when sulphuric acid is added to calcium carbonate (1 replies)
  105. Chemical structure of salt (3 replies)
  106. Shell life of AgNo3 (0 replies)
  107. how do I balance an equation (1 replies)
  108. How do you work out the volume of acid needed to neutralize a reaction (0 replies)
  109. Can someone please help me with this stoichiometry problem? (0 replies)
  110. Tensors in Maths (0 replies)
  111. Hard Chemistry Problem (0 replies)
  112. Molarity and Normality (0 replies)
  113. Chemical absorption (0 replies)
  114. Stoichiometry (1 replies)
  115. Self Ignition & Auto Ignition Tempetature (0 replies)
  116. What substance is referred to as the universal solvent (2 replies)
  117. Temperature and pressure of a gas (2 replies)
  118. How To Calculate Freezing Point Of a Blend Of Two Mixtures With Known Freezing Points (0 replies)
  119. Gay-Lussac help needed please (2 replies)
  120. Ask chemistry questions free (0 replies)
  121. Basicity of water and ammonia, and their phenyl relatives (3 replies)
  122. Mg of calcium carbonate calculation in 1 mL EDTA (0 replies)
  123. Diazepam properties and reactions (0 replies)
  124. Where to ask chemistry questions and get answers (1 replies)
  125. Chemistry (1 replies)
  126. Physical Chemistry-Equilibrium question (1 replies)
  127. Molarity (0 replies)
  128. Inverse square law of radiation (1 replies)
  129. 4 methods of measuring density of a single liquid in an opened container (1 replies)
  130. Severe Vit B12 deficiency... (1 replies)
  131. Measure gas pressure (2 replies)
  132. Chemistry ask (2 replies)
  133. What is the mass of 31/2 moles of h2o using a conversion factor (2 replies)
  134. Online chemistry doubts (2 replies)
  135. General chem question (0 replies)
  136. How about potassium humate, does it really work? (2 replies)
  137. Calorimetry (1 replies)
  138. Ask questions of chemistry (0 replies)
  139. Resonance vs. Mesomeric Effect (0 replies)
  140. Mole to Mole (0 replies)
  141. Questions about passing ua and ba tests (1 replies)
  142. Half reactions (1 replies)
  143. Highly Soluble Substances (0 replies)
  144. Beer lambert law (0 replies)
  145. Quantifying Reactions (1 replies)
  146. How to find moles of a compound from mole ratio (0 replies)
  147. Change in temp (1 replies)
  148. Iodine Question (0 replies)
  149. Firework compositions (0 replies)
  150. Density of CO2 at 5 atm (1 replies)
  151. What is the wavelength? (1 replies)
  152. On the basis of Le Chatelier's principle,explain why Ag2CO3 dissolves when HNO3 is ad (1 replies)
  153. How do I balance periodic equations (0 replies)
  154. If Lye can burn our skin, why is used in food? (1 replies)
  155. Calculation for cellulase activity by dns method (0 replies)
  156. Hard Chemistry Problem. Help Please! (1 replies)
  157. Ask chemistry questions (1 replies)
  158. Ask chemistry questions free (0 replies)
  159. Ask chemistry questions and get solutions (2 replies)
  160. Chemisrty (1 replies)
  161. Baarometric colorchanging glass animals. (0 replies)
  162. Hydrophobic coating what is this?? (1 replies)
  163. True or false answers to my question (2 replies)
  164. half-life equations (1 replies)
  165. Chemistry (0 replies)
  166. What labs breakdown and duplicate formulas (0 replies)
  167. Polymer (0 replies)
  168. viscosity (1 replies)
  169. 2NaOH + CO2 → Na2CO3 + H2O (0 replies)
  170. Answer my chemistry questions (0 replies)
  171. Grams to formula units (0 replies)
  172. Lab 6 (2 replies)
  173. If specific amount of carbon reacts with 1.00 g, 1.50 g, and 2.00 g of Hydrogen to for (0 replies)
  174. Hplc (0 replies)
  175. Law Of Conservation of Mass? (1 replies)
  176. Ask a chemical engineer. Mgo, MgCl related question (0 replies)
  177. What Happens When Sodium Hydroxide Reacts With Carbomonooxide? (0 replies)
  178. How to find the hardness of solution (0 replies)
  179. predicting products in chemical equation examples (0 replies)
  180. Troubleshooting HPLC (0 replies)
  181. Mass to Volume (0 replies)
  182. Can I start a failed alcohol wash? (0 replies)
  183. Preparing HCl solution to dissolve only 10% of a gram of calcium carbonate! (0 replies)
  184. Chemistry complete ionic equations (1 replies)
  185. Organic chemistry (0 replies)
  186. Powdercoating Steel (2 replies)
  187. Word equation (1 replies)
  188. Word equations (1 replies)
  189. Hydrochloric acid + solid calcium carbonate (3 replies)
  190. D1- which has been made by adding 0.55g of metal "M" to 1dm of an aqueous solution co (0 replies)
  191. find the pH of solution formed by dissolving 0.1 mol of acetic acid (Ka = 1.8 * 10-8) (1 replies)
  192. kinetic gas equation? (1 replies)
  193. Magnesium Carbonate, MgCO3, is used in indigestion tablets... Full Question Below: (0 replies)
  194. How far does light travel in 1.0s (2 replies)
  195. How to draw dot and cross diagram for lithium chloride and magnesium sulphide? (0 replies)
  196. Find the temperature in following case? (1 replies)
  197. Calculate the molar mass of the gas? (1 replies)
  198. Practical chemistry question - identifying an unknown metal (0 replies)
  199. How much converted dextrose? (0 replies)
  200. Need help (0 replies)
  201. Acids from wet salts (0 replies)
  202. Answer my chemistry questions (2 replies)
  203. Ask chemistry questions free (0 replies)
  204. 1beer and took EtG 13 hours later (1 replies)
  205. Chemistry Help PLEASE (1 replies)
  206. Complex dilution problem -help for a wetland ecologist (0 replies)
  207. What are periodic trends? (0 replies)
  208. Chemistry (0 replies)
  209. For a theoretical yield of 1.27 g and percent (0 replies)
  210. Iodometric Titration (0 replies)
  211. Chemistry (1 replies)
  212. Why we use toluene for resolution of UV calibration (0 replies)
  213. Grams of oxygen (1 replies)
  214. Answer these question - emeprical and moleular formulae--- and the mole? (0 replies)
  215. How much dextrose does 1 kilo of sugar convert to? (0 replies)
  216. Chem lab (0 replies)
  217. % Carbondioxide calculation using handerson hasselbach equation (0 replies)
  218. Gas Volumes related to temperature and pressure. (1 replies)
  219. Volume of atmospheric air needed to displace 5160 cubic cm of water? (0 replies)
  220. A mixture of oxygen, hydrogen, nitrogen and carbon dioxide in a two (0 replies)
  221. Ask a chemical engineer (3 replies)
  222. Would a precipiatate form if a solution of sodium carbonate was added water & sodium (0 replies)
  223. Reaction of marble chips and acid (1 replies)
  224. Can one beer be dectected in an EtG test after 12 hours? (0 replies)
  225. Muriatic acid, sold for adjusting the pH of swimming pools and for cleaning freshly p (1 replies)
  226. What is a sigma bond? (1 replies)
  227. How to make silicone watery (0 replies)
  228. Calculate Delta E and H at 25.00 degrees C? (0 replies)
  229. Calculating the concentration of all ions remaining in solution? (0 replies)
  230. Confused about ionic and covalent bonds! Grade 11 (0 replies)
  231. Ask chemistry questions (0 replies)
  232. Orientation of sp orbital? (0 replies)
  233. Balanced molecular, net and ionic net of Ba(OH)2 and HF (0 replies)
  234. Bonding properties (0 replies)
  235. What liquid is immiscible with Hydrofluoric acid and less dense? (1 replies)
  236. Question about chemistry. (1 replies)
  237. How do I calculate a % problem (0 replies)
  238. A coin weighs 4.3425 g and is dissolved in 250 mL solution (solution A). Solution D I (0 replies)
  239. F3-1 Model help?? (0 replies)
  240. Doubts in chemistry (1 replies)
  241. predicting product of chemical equation (1 replies)
  242. Chem (0 replies)
  243. Chemistry ask questions (0 replies)
  244. Chemistry ask questions (0 replies)
  245. Batteries (0 replies)
  246. Neutralisations reaction h2so4 nh3 (0 replies)
  247. How to clear doubts in chemistry (0 replies)
  248. predict the products and balance the following chemical equations (0 replies)
  249. products of chemical equations (0 replies)
  250. How to clear doubts online (0 replies)