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  1. How does a body get charged by rubbing (6 replies)
  2. Thickning agent urea (0 replies)
  3. Chemistry homework (2 replies)
  4. Molar enthalpy of reaction (1 replies)
  5. Chemical equations for acid (1 replies)
  6. Chymistry apparatus and uses? (1 replies)
  7. Medicine dropper beaker tripod graduated cylinder erlenmeyer flask test tube racks te (1 replies)
  8. How many ppm when add 10kg of chlorine 70%^ concentrated to 500 barrel of water (1 replies)
  9. Laboratory apparatus (1 replies)
  10. Is energy released or absorbed when water is changed from a gaseous to a liquid phase (1 replies)
  11. Balance equations (1 replies)
  12. What is the formulation of glue used in zinc oxide adhesive plaster? (1 replies)
  13. One word for melting one material and pouring into another liquid from metallurgy (2 replies)
  14. Factor depends on system suitability of HPLC (1 replies)
  15. Courses after tybsc chemistry (1 replies)
  16. A Question on Organic Synthesis (1 replies)
  17. Why must titrate immediately the mixture of acidified iodate solution with kI? (1 replies)
  18. Diesel will have any quality change when it will mix with NO-OX-ID coating (0 replies)
  19. Uses of the following APPARATUSES (1 replies)
  20. H2co3+caco3=cao (2 replies)
  21. What kind of bonding would occur between ammonia and boron trichloride? (1 replies)
  22. What volume of CO2 is produced when 2g of CuCO3 is heated with a bunsen burner? (3 replies)
  23. What are the common laboratorys apparatus and their uses? (1 replies)
  24. Chemistry confusion (1 replies)
  25. Common laboratory apparatus and their uses (1 replies)
  26. How to solve the isometric point of basic and acidic amino acids? (0 replies)
  27. Laboratory apparatus and their functions (3 replies)
  28. How to convert Zinc Sulfate Monohydrate (ZnSO4.H2O) to Zinc Sulphate Heptahydrate (Zn (1 replies)
  29. Common laboratory apparatus and their uses (1 replies)
  30. System suitability in hplc (1 replies)
  31. What happens to the waste products from the Bunsen burners flame? (6 replies)
  32. The equation for the metabolic breakdown of glucose (C6H12O6) (1 replies)
  33. If a balloon at 25C and a volume of 500 mL is cooled to liquid nitrogen temperature (1 replies)
  34. Gases (2 replies)
  35. Ask a chemical engineer (3 replies)
  36. Uses of the common laboratory apparatus (5 replies)
  37. Common laboratory apparatus (2 replies)
  38. Alkalinity (1 replies)
  39. Glucose 1000 ppm (1 replies)
  40. Chemistry organic alcohol help? (2 replies)
  41. Why air bubbles come up in water (2 replies)
  42. What is fractionation by HPLC? (2 replies)
  43. Chemical compounds (0 replies)
  44. What is entropy defined as? (2 replies)
  45. How many moles of gas are present in a 10.0 liter sample at STP? (1 replies)
  46. How do I get a bleed over stain out of a coloreed cotton t-shirt? (1 replies)
  47. Cuso4+h2so4+h2o (1 replies)
  48. Pioglitazone hydrochloride (1 replies)
  49. What is the molarity of a hydrochloric acid solution that contains 19.8 g HCl in 100. (1 replies)
  50. Bondings of diazepam (2 replies)
  51. How do you figure out gases? (1 replies)
  52. Convert 0.850 atm to pa (1 replies)
  53. Ppm calculation formula (2 replies)
  54. Mono refers to how many (7 replies)
  55. How does magnesium obey the octet rule when reacting to form a compound? (1 replies)
  56. Why LiAlH4 reduce alpha hydrogen substituted acetylenic bond,not isolated double bond (0 replies)
  57. How do you writte oxygent, nitrogent, and hydrogen in chemical equation? (2 replies)
  58. If a 2.0 mole sample of each of the following compounds is completely burned, which o (2 replies)
  59. Difference between conductors and electrolytes (0 replies)
  60. Resonance (3 replies)
  61. Why absorbence change is too small in analytical measurement (1 replies)
  62. Biochemistry (1 replies)
  63. Converting mass to moles (2 replies)
  64. Predict the outcome of the chemical reaction of I CaCl2 AgNO3 (2 replies)
  65. How to find the Qsp (1 replies)
  66. (cu+cuo)+h2so4=cuso4+h2o+so2 (1 replies)
  67. Science Geek Needed! Sodium alginate (0 replies)
  68. Word equations into chemical equations (1 replies)
  69. What chemical should be use to reduse the ammonia concentration in water? (2 replies)
  70. Rubber (6 replies)
  71. Balancing chemical reactions (1 replies)
  72. Concentration of all species of 50.0mL of 0.050M HCl plus 150.0mL of 0.10M HNO3 (1 replies)
  73. Ch2=ch-ch3 + brh2o ---> (1 replies)
  74. Is it a Reaction or Not? PLEASE HELP (7 replies)
  75. What is the property of materials which allow light to enter but not escape? (3 replies)
  76. Net ionic equations for the reactions which occurred in the following tests. (1 replies)
  77. Carbon dioxide scrubber using amines (0 replies)
  78. What happens when you mix hand soap and bleach (1 replies)
  79. How natural dye are used in textile dying (1 replies)
  80. What is a spacer group? (0 replies)
  81. How to convert the gm into ppm (1 replies)
  82. Titrations: magnesium carbonate and hydrochloric acid (1 replies)
  83. Calculating the quantity of heat required (1 replies)
  84. What is the change in entropy for the decomposition of 4 moles of water? (0 replies)
  85. H2o + co2 + ba(oh)2 ---> (1 replies)
  86. Concentration of sodium ions (1 replies)
  87. How many moles of CaCL2 are in 250 mL of a 3.0 of CaCL2 solution? (1 replies)
  88. What is the molarity of a solution that contains 17 g of NH3 in 0.50 L of solution (1 replies)
  89. Balace the equation (3 replies)
  90. Freezing point? (4 replies)
  91. In units of grams per 100 mL of solution, what is the solubility of AgCN? And Zn(CN)2 (1 replies)
  92. Draw a Lewis structure for NHF2 (2 replies)
  93. How to convert orp millivolt to chlorine concentration (0 replies)
  94. Radial probability distribution (not a homework question) (1 replies)
  95. H2CO3 and NaHCO3 adding H+, write ionic equation (1 replies)
  96. What is the opposite of Chlorine on the periodic table of elements? (1 replies)
  97. How can I figure out that which solutions are acidic or basic or neutral? (9 replies)
  98. Valance electrons can come together to form how many covalent bonds between atoms (5 replies)
  99. How should I mix d-limonene with ethanol to get a homogeneous solution? (1 replies)
  100. How to calculate heat of absorption using Gibbs-Helmholtz equation? (1 replies)
  101. Lab report The enthalpy change of a chemical reaction (2 replies)
  102. Which of these cells have Chromosomes? (1 replies)
  103. Find temperature if you know the voulme (1 replies)
  104. Exothermic reactions (1 replies)
  105. 5moles ba oh 2 aq h2so4 aq (1 replies)
  106. What is the word equation for Cu(OH)2= CuO+ H2O? (1 replies)
  107. What is the word equation for CuSO4+ 2NaOH= Na2SO4+ Cu(OH)2? (1 replies)
  108. Word equation for CuO+H2SO4= CuSO4+H2O (2 replies)
  109. Heat flow? (13 replies)
  110. Nac2h3o2what compounds is this? (3 replies)
  111. What are 3 colligative peoperties of solutions (1 replies)
  112. Which metal is this (specific heat already calculated)? (1 replies)
  113. Chemistry (1 replies)
  114. Sepration of organic compounds with liqid-liquid extaraction (2 replies)
  115. How many grams of Mg would be used to produce 1gram of silver? (1 replies)
  116. Write a net Ionic equation for the following reaction: Li + Sr2→ ____ (1 replies)
  117. Naco3 cocl2 (1 replies)
  118. What will their equilibrium concentrations be? (3 replies)
  119. Find the melting point of temperature in kelvin for sucrose (1 replies)
  120. German Visa for postdoc in germany (0 replies)
  121. Kinetics of a hydrolysis reaction pentoxide (1 replies)
  122. Pharmaceutical preparation of brilliant green and crystal violet paint. (2 replies)
  123. Chemical equations help? (2 replies)
  124. How many calcium atoms are in 51.0 g of calcium? (1 replies)
  125. Problem solve copper is in 2.154g of copper (1) sulfide (3 replies)
  126. Ask a chemistry question (2 replies)
  127. Interview questions for M.Sc.organic chemistry (3 replies)
  128. How do we calculate g-moles? (1 replies)
  129. Hydrogen plus oxygen yield water (1 replies)
  130. Concentrated hydrochloric acid is about 12.1 M. What volume of concentrated HCl is (2 replies)
  131. What is the ph of a 0.20 M LiOH solution? (1 replies)
  132. Stoichiometry questions (1 replies)
  133. Predict the product of this reaction Zn H2CO3 and if it will precipitate (2 replies)
  134. How much of carbon dioxide (CO2) could be made from 36 moles of sugar (1 replies)
  135. How much potassium-40 did the rock contain 1.3 x 109 years ago? (6 replies)
  136. Consider the chemical reaction 2NH3(g) Picture N2(g) + 3H2(g). The equilibrium is (1 replies)
  137. Molarity (1 replies)
  138. What do you get when you react propylene glycol and chromic acid (1 replies)
  139. Need help with my chemistry homework please help! (11 replies)
  140. Buffers separation techniques (0 replies)
  141. What is the total mass of a mixture of 1.5 X 10^23 formula units Na2So4, 0.132 mol H2 (1 replies)
  142. Convearting moles to grams (1 replies)
  143. Find the mass in grams of 1.40x10^23 moles of N2. (1 replies)
  144. How many moles of H2 are needed to produce 12.82g of NH3? (3 replies)
  145. Magnesium plus hydrogen chloride (3 replies)
  146. What gas allows things to burn (3 replies)
  147. 2NO + Br2 --->2NOBr For every 7.50 mol of bromine that reacts, (1 replies)
  148. Write the net chemical equation for the reaction? (1 replies)
  149. Anaesthetics (2 replies)
  150. Sulfomamide (1 replies)
  151. Find Rates 60 seconds and 120 seconds? (3 replies)
  152. Standard graph of iron (1 replies)
  153. Negative calorimeter constant? (13 replies)
  154. What is the rate law for the reaction? (1 replies)
  155. Organic chemistry eperts are their any on this site (5 replies)
  156. Boyles law? (1 replies)
  157. K2Cr2o7 what is solubility in water (1 replies)
  158. How would the boiling and freezing points of distilled water and sea water compare? (1 replies)
  159. A 0.0113 mol sample of urea, NH2CONH2 contains how many atoms? (5 replies)
  160. y=m x x + b (2 replies)
  161. y=m x x b (0 replies)
  162. y=m x x+b (0 replies)
  163. Break down (0 replies)
  164. Electrons are emitted from a conductor when the conductor is? (3 replies)
  165. What is the water chloride level in boiler feed water (1 replies)
  166. How can I calculate total hardness in ppm CaCO3? (5 replies)
  167. What is the mass of KCl in a 0.000198ppm solution? (1 replies)
  168. Hydroxyl radical reaction with Cr and Ru metals (0 replies)
  169. How do you work it out the formula of shikimic acid? (1 replies)
  170. Hcl+h2bo3-=? (1 replies)
  171. Find pressure from temperature and moles (2 replies)
  172. Stoichemetry (1 replies)
  173. Sodium hydroxide-Carbon dioxide rate of reaction (2 replies)
  174. Please Help! Chemistry Half Life Question (0 replies)
  175. Brominating lycopene (1 replies)
  176. Can I extract electricity from moving water via a reaction? (3 replies)
  177. If an athlete weighs 153 and has 15.0 body fat by weight, how many pounds of fat doe (2 replies)
  178. How can I find the molality of sucrose in mixture? (3 replies)
  179. What is the molality of this solution? (1 replies)
  180. Kas exams (2 replies)
  181. Calculate heat of vaporization (1 replies)
  182. Find the normal freezing point of 0.32 m (1 replies)
  183. Chemical reaction between a starch and powdered sugar (2 replies)
  184. Functional group to macromolecule family or families it is commonly associated with. (3 replies)
  185. How long will it take for 20% of the {\rm U}-238 atoms in a sample of {\rm U}-238 to (2 replies)
  186. Why sodium acetate freez faster than salt (38 replies)
  187. How to prepare 3 ppm solution of CdCl2 (1 replies)
  188. Can phenytoin sodium be stored at -20C (1 replies)
  189. A small indoor pond (approx 30gal) room temp is 70 C. What's the water temp? (1 replies)
  190. Nahco3+na4p2o7+h2so4 = co2+? (1 replies)
  191. I need help with this problem (0 replies)
  192. Write a paragraph describing the mechanism by which soap cleanses (3 replies)
  193. Classify each of the mixtures. (2 replies)
  194. Al+h2o (5 replies)
  195. Volume in mmhg with constant volume and temp at stp (0 replies)
  196. Give the equivalents of 65.0 Mg2+ and 4.02x10^22 Cl- (chemistry) (1 replies)
  197. First ionization energies (1 replies)
  198. How can I find the molal concentration of a solution and molar mass of a solid? (3 replies)
  199. Differences in measuring the molar mass using freezing point depression (1 replies)
  200. Calculate the length of an edge of this unit cell. (13 replies)
  201. Calculate the mass of 2.50 of CH3OH? (2 replies)
  202. What happens to the waste products from the Bunsen burner's flame? (1 replies)
  203. Ask chemistry questions (8 replies)
  204. Which compound would be the limiting reagent? (1 replies)
  205. Ethanol and a chromate-dichromate equilibrium (1 replies)
  206. In the chemical reaction CaCO3=CaO+CO2, if 40.0g of CaCO3 is decomposed, how many gra (1 replies)
  207. Solubiity Product (0 replies)
  208. I want to convert ZnBr2 to NaBr and ZnCl2. Here is my thought on a 2-step reaction: (1 replies)
  209. Examples of hybridization (1 replies)
  210. Select all of the intermolecular attractive forces present in each compound. (6 replies)
  211. Find kilojoules (3 replies)
  212. Hybridization assignment (4 replies)
  213. How would the accuracy of a specific heat be affected if a half size of metal is used (1 replies)
  214. What toxin or gas leaves a shiny multicolored residue (1 replies)
  215. Which portion of the graph corresponds to the release of the heat of vaporization? (3 replies)
  216. Why isn't the butane boiling inside the lighter at room temperature? (2 replies)
  217. How much heat is required? (1 replies)
  218. Water or acetone , which solution boils first? (1 replies)
  219. 2(Al)2Br3 + 3Cl2 (arrow pointing right) 2Al(Cl)3 + 3Br2 in model form (1 replies)
  220. Equation when chlorine gas reacts with methane, carbon tetrachloride and hydrogen chl (2 replies)
  221. Find Volume (1 replies)
  222. Rates of diffusion compare (4 replies)
  223. Effect of Potassium Bisulphate as food preservative (1 replies)
  224. In a single displacement reaction 9.23g of Al react with exist hydrochloric acid.how (1 replies)
  225. Al+hcl (1 replies)
  226. Entropy (1 replies)
  227. Acid and its properties (1 replies)
  228. Ethanol and water (1 replies)
  229. Skeletal structure-balanced equation (1 replies)
  230. Solutions and Ksp Value Questions (1 replies)
  231. Find equation of this line. (1 replies)
  232. How can I do these conversions? (2 replies)
  233. Lewis acids and bases (1 replies)
  234. Affecting concentrations of Cr2O4 ions and Cr2O7 ions with acids and bases (1 replies)
  235. Reaction of naoh and co2 (1 replies)
  236. Why do some acids and bases affect a chromate compound and others do not? (1 replies)
  237. Solubility of e.g.. K2Cr2O4 and K2Cr2O7 (1 replies)
  238. How can I find temperature? (5 replies)
  239. What pressure is required to compress. (5 replies)
  240. Chemistry ? (0 replies)
  241. Calculatre the number of the constituent atoms in 53 g of sodium carbonate (1 replies)
  242. Calculate the number of the constituent atoms in 53 g of sodium carbonate (0 replies)
  243. What is the ball and stick model look like for Barium Hydroxide--Ba(OH)2. (1 replies)
  244. How do ions impact a river/bay?---? (4 replies)
  245. How many moles are in 15.1g of nitrogen gas? (2 replies)
  246. How can I find final volume in this case? (1 replies)
  247. Discuss how isotopes have impacted a river. (1 replies)
  248. Help on 3d model of Barium Hydroxide- Ba(OH)2 (1 replies)
  249. Balance this equation H2SO4+NO2C6H4NH2+NANO2 =? (1 replies)
  250. The formula? (2 replies)