Chemical Reactions Lab Report Introduction: Chemical reactions is a process that involves rearrangement of the molecular or ionic structure of a substance. There are different types of reaction such synthesis‚ decomposition‚ single replacement‚ double replacement‚ and combustion. Synthesis is where two or more reactants combine to create a product. For Decomposition‚ it is the opposite where a product breaks down into reactants. In Single Replacement‚ reactants switches an element with another element
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Enzymes are biological catalysts or assistants that consist of various types of proteins that work to drive the chemical reaction required for a specific action or nutrient. They can either launch a reaction or speed it up. Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It is a very important enzyme in protecting the cell from oxidative damage by reactive oxygen species (ROS). The catalase used in this experiment will come from five different sources: Spinacia
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AP Bio Block B Photosynthesis Lab 12/6/12 Introduction: Photosynthesis is affected by light intensity‚ water‚ and temperature. Plants grow more abundantly because the weather is warm. Carbon Dioxide given off by animals is consumed by plants that replace the oxygen animals take it. Experimentation will help understanding how plants are vital because of the oxygen they release. If leaf disks in the experiment release oxygen‚ they will undergo photosynthesis and float. If
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sale which we are expecting to sell all of them in the school farmer market. Conclusion: The cookies that we made during each lab showed most of the benefits and disadvantages of making our own cookies compare buying commercial cookies (saving money‚ healthier version‚ taste‚ and texture). I believe‚ I can use all these experiences that I gained during each cookies labs at home too. Also‚ it will be helpful and useful in food service. For instance‚ as a register dietitian‚ I can approach any desserts
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all calculations‚ below is what we concluded. The molarity you had to be careful with because it was moles/liters and our readings were in milliliters so we had to convert first. In conclusion‚ even though the lab procedure is not about moles‚ most of the calculations are and this is one lab where the concept of
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The objective of the deicer lab was to successfully conduct experiments to determine the usefulness of magnesium chloride as a deicer. To find how successful magnesium chloride is as a deicer‚ experiments were conducted to determine the freezing point depression‚ enthalpy of dissolution‚ the impact on the surrounding environment‚ and also the expenses of using magnesium chloride as a deicer. For magnesium chloride to be determined as a good deicer‚ the reaction with water needs to be exothermic so
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if antimicrobial concentration increases‚ then the zone of inhibition will increase because the higher the concentration‚ the more the antimicrobial will disinfect the area of bacteria and thus the zone of inhibition will increase.The results of the lab do support my hypothesis. Paragraph 2: My antimicrobial was bleach. Bleach contains hypochlorous acid which “causes bacterial proteins to unfold and stick to one another‚ making them nonfunctional and leading to cell death”(publications.nigms.nih.gov)
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Enzymes are responsible for multiple reactions that take place naturally in the living organisms. The purpose of the enzymes lab was to investigate how the enzymes play a role in a reaction‚ affecting the rate of reaction (ROR). Interestingly‚ we tested how the enzymes affect the reaction rate at multiple temperatures (0‚ 23‚ 37‚ 50‚ 70‚ and 95 C). It was predicted that an increase in temperature will elevate the thermal activity of substrate which increases the chances the substrate molecules will
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Using Egeria densa‚ cut a leaf using a scissor and place it onto the slide glass using a forcep and using the droppers drop some water and place coverslip on top of the leaf by sliding the coverslip when placing on top to prevent air which produces bubbles. Place the slide glass on the stage‚ by moving the stage clip and move the coarse adjustment knob toward the experimenter to set the stage to the lowest. Use the 4x or 10x objective lens‚ so move the revolver to that and also the iris diaphragm lever
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As stated previously the purpose of this experiment was primarily based on about chemical changes. Many chemical changes are viewed through a screen‚ or read from a book. In this experiment‚ chemical changes are viewed directly from the eyes of the scientist. The procedure first begins by gathering all needed materials. Next‚ laying the first powder on four wells‚ followed by the next powders‚ each powder was placed on four wells. The liquids were then placed on each powder using the four droppers
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