... result this means that the reaction is not as fast or successful. Concentrations of reactants in solution: In reactions which involve liquids, increasing the concentration of the solution increase the rate of reaction. This is because there is a greater chance of the molecules colliding frequently, resulting in a faster reaction. Catalysts Catalysts are chemicals that speed up a chemical reaction but are not used up ... . Catalysts increase the rate of reaction because it provides an alternative route for the reaction by lowering the activation energy needed. Stirring Stirring the soluti...

• Word Count: 3666
• Approx Pages: 15
• Has Bibliography
• Grade Level: High School

... the fume hood then add approximately 15ml of the 12molar hydrochloric acid and 5ml of the 16molar nitric acid. 6.There will be a reaction as the acid is dissolving the metal shavings, after the solution stabilizes cover the beaker with a watchglass and then gently heat the solution ... 66 Normalized B Scale Rockwell 15 16 15 12 Average=14.5 Photographs of Samples  Sample#1 Normalized rebar Ferrite (white) and Pearlite  Sample #1 Picture#1 Normalized rebar  Sample #2 Annealed Pearlite and Ferrite  This is the curve needed to get any annealed material (Pearlite and Ferrite)  ...

• Word Count: 2661
• Approx Pages: 11
• Grade Level: High School

... lists, but these same background items should still be recognized. A list of words was created from the categories of "four-footed animals" and "chemical elements." Lists of twenty-four items were created. In each list there were twenty items from the same category and four items from a different category ... hypothesis that background items are easier to remember in homogeneous lists than in lists with distinctive items. The overall results of this study present a picture of how lists containing conceptually distinctive material are recalled. It shows that retrieval is organized around t...

• Word Count: 2838
• Approx Pages: 11
• Grade Level: High School