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Exothermic Lab Report

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Abstract: (10 points) This experiment looked at chemicals and their reactions and labeled them if they were either exothermic, endothermic or you couldn’t tell if there was a reaction. It’s important to use those labels, such as endothermic, exothermic, and cannot tell because those labels made it possible so there could be distinctions made on certain solutions and help better understand the behavior of them whether its in an oven or not and it interacts with the air in settings. Introduction: (10 points) Doing the “Chemical Magic” experiment it studied the following: endothermic reaction, exothermic reaction, precipitate, and qualitative analysis, and combustion. While performing this lab, endothermic reactions apply because it’s a “chemical reaction that absorbs heat from its environment. The absorbed energy …show more content…

exothermic endothermic cannot tell 3. Reversible Decomposition. Combination Reactions A. Dehydration of Blue Vitrol (Copper(II) Sulfate Pentahydrate)Chemical Equation: CuSO4 • 5H2O → CuSO4 + 5H2O Describe your observations: Originally the vitriol was blue, but because it got heated up its water molecules got lost which made it dehydrated. So, whatever water that was there got broken up when it all steamed up, which made it dehydrated and loose its original blue hue and made it a white looking color. exothermic endothermic cannot tell B. Rehydration of Anhydrous Copper(II) Sulfate: Chemical Equation: CuSO4 + 5H2O → CuSO4• 5H2O Describe your observations: When it’s on the paper it gets rehydrated and giving its original color back while getting rid of the white color.. exothermic endothermic cannot tell 4. Single Replacement ReactionChemical equation: Cu + 2AgNO3 → 2Ag +

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