An investigation in to the rate of reaction Plan: I am going to investigate the rate of reaction. The reaction I will be using is: Calcium Carbonate + Hydrochloric acid ---- Calcium Chloride + water + carbon dioxide. CaCO3 + 2HCl ---- CaCl +H2O + CO2 Measurements and Variables: The variables I have chosen to change is strength of the hydrochloric acid which will be 1 mole‚ 0.7 mole‚ 0.5 mole‚ 0.3 mole and 0.1 mole some variable I will not be using are temperature‚ mass‚ density. The measurements
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Nicole Buckman BIO220 March 18‚ 2013 Meredith Morrissey Controlled Burns and the Environment In a forests life‚ the process of a fire starting and destroying the trees and underbrush in a forest is an important cycle. It helps to improve the life span of the vegetation and animals living in it. With the rise in wildfires all over the country‚ researchers say that controlled burns will help reduce the risk of catastrophic wildfires. Many people think of fire as only being dangerous and destructive
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How does pH affect the activity of the Amylase? Abstract: In my experiment I aimed to observe how ranging pH levels will affect the rate in which amylase will break down the starch molecules. I will be measuring the time it takes for the dark liquid to disappear and leave a yellow brown liquid to be shown‚ which would show that there is no starch present in the solution because it would have broken into maltose by adding amylase. Results did not fully demonstrate what we expected in our hypothesis
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Introduction There is approximately 75‚000 enzymes that exist in the human body. Enzymes are important for fast reactions that keep you alive‚ break down large molecules into smaller molecules and use small molecules to build large complex molecules like the enzymes that make DNA and enzymes also help cells to communicate with each other. I have decided to use not one but two enzymes to observe what happens to the different kind of enzymes when introduced to different PH (power of hydrogen) scales. the best
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Oil Spills and Its Effects on Marine Life Many people do not realize the impact of the oil spills that occur in the ocean. It is like putting water into a heated oil frying substance. It is quite catastrophic. With all the oil spills that have already occurred it is important to help clean ‚and prevent oil spills from reoccuring. There is indeed a lot of reasons as to why we should clean and help prevent oil spills from happening but here are the three main reasons. First reason being oil spills
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told the United States government to not form political parties. Washington predicted that they might distract the public councils and weaken public administration. Republican and Democratic parties have and have not helped government issues that affect the United States today. One big issue political parties have and have not helped with is healthcare. President Obama fulfilled a promise that Democrats have perused for nearly a century. It is making affordable healthcare available for all Americans
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How do foreign exchange fluctuations affect MNEs? The Facts The foreign exchange market is an over the counter market that trades foreign currencies. Based on the supply and demand for a countries currency‚ the value of that currency changes‚ which causes the price to shift. If a business is doing a transaction in a foreign currency‚ they will need to exchange it back to their home currency after the transaction is complete. The fluctuation in exchange rates creates a foreign exchange risk
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There are many reasons why enzymes have such a high specificity. The first variable is an enzyme’s primary structure. A primary structure is just a combination of amino acids. There are twenty different amino acids that the primary structure can be created from. Every enzyme has a different order that the acids are placed in and each one has a different number or amino acids. The slightest change in this structure can affect a protein’s conformation and function. The secondary structure is a regular
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Title: Enzyme Activity Aim: To investigate the activity of the enzyme catalase in liver and potatoes‚ and to investigate the effect of temperature‚ surface area‚ pH and certain chemicals on the activity of catalase. Equipment: Dilute hydrochloric acid solution x 1ml 10 volume hydrogen peroxide x 100ml Copper sulphate solution x 1ml Aluminum nitrate solution x 1ml Zinc nitrate solution x 1ml dilute NaOH solution x 1ml Mortar and pestle x 1 25ml Beaker x 1 Hot plate x1
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them‚ have in a way brought the study of business ethics to the forefront. As a detriment‚ they have been blamed for hastening the collapse of traditional ways of life; for taking advantage of weak and/or corrupt governments in countries where they do business; for addicting the world population to unsustainable technologies while blocking technologies counter to their interests; and for intensifying the disparities between rich and poor. Some people feel as though multinational corporations eliminate
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