Organic VS. Conventional Alexis Dossey Environmental Science 1A For years‚ there has been a debate on how food is grown. Should it be organic or conventionally grown? To answer this question‚ the difference between the two needs to be known. Organic produce is grown without chemical fertilizers and pesticides. Organic livestock is free ranged‚ most of the time‚ with no added antibiotics or growth hormones. Conventionally grown produce is usually
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textbook in 1789 on chemistry in it he introduced the Law of Conservation. He founded the 3 types of matter (solid‚ liquid‚ and gas). Along with this he also established the metric system. Lavoisier also made a lot of enemies because he had disproved various old theories. In experiment 2.1 we wanted to know if the mass of salt will
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Objective: To investigate how pH affects the rate of protein digestion Hypothesis: I predict that since pepsin breaks down the material the quickest at a pH of 2 in the stomach‚ test tubes #3 will reduce the greatest because it has pepsin to further break down the egg. Whereas the other test tubes will have a smaller reduction. I think test tube #2 will have the second largest reduction rate and then #6 because they all will have a greater rate at breaking down the material‚ Then‚ I predict the
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Conclusion The purpose of this experiment was to discover the chemical properties that copper has when reacting with other chemicals and how it changes physically during these processes. (Department of Chemistry‚ 2013) This was achieved through many types of reactions‚ such as a redox reaction‚ double displacement‚ decomposition reaction and single displacement depending on the chemical properties in relation to copper of the other substances when it was added with copper. Copper was either in an
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ORGANIC vs. INDUSTRIAL FOOD Written By: Jason Bridges Advanced Composition – 2012 DeVry University Have you ever been standing in the grocery store‚ undecided on whether there really is a difference between the standard store brand ribeye steak and the organic‚ grain fed‚ free range ribeye that costs twice as much? Ever had little devil on one shoulder telling you one thing‚ and the angel on the other convincing you the devil is wrong? Is cost the only thing holding you back from shelling
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density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders Distilled water Metal Samples W‚ X‚Y & Z Procedure: 1. Class split into 5 groups. Every group will get data for four metals and tell it to the class 2. Choose a metal sample for every group then pass it around between groups. 3. Set a number of your metal sample and record the mass in the table.
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Chemistry 11 Final Examination Review - Answers Part A - True or False. Indicate whether each of the following statements is true or false. Correct the false statements. F 1. The mass of an electron is equal to the mass of a proton. The mass of an electron is less than the mass of a proton. T 2. The mass of a proton is approximately equal to the mass of a neutron. T 3. The atomic number represents the number of protons in a nucleus. T 4. The proton has a mass of approximately
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Lab 2: The Chemistry of Life Name _____Aniqa Qureshi_ Insert the chemical symbol in the answer blank for each of the following elements. ___O______ 1. oxygen ___C______ 2. carbon ___K______ 3. potassium ___I______ 4. iodine ___H______ 5. hydrogen ___N______ 6. nitrogen ____Ca_____ 7. calcium ____Na_____ 8. sodium ____P_____ 9. phosphorus ____Mg_____ 10. magnesium ____Cl_____ 11. chloride ____Fe_____ 12. iron In the space below‚ list the chemicals (above) from the MOST
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ORGANIC CHEMISTRY Carbon atoms: * Carbon-carbon bonds are not easily broken * Each carbon atom forms 4 covalent bonds * The C-H bond is almost non-polar Classifying organic compounds: * Number of carbon atoms in longest chain: meth‚ eth‚ prop‚ but‚ pent‚ hex‚ hept‚ oct‚ non‚ dec * If it is a branch: -yl; di‚ tri or tetra means there is more than one branch‚ ethyl means there are 2 carbons coming off the branch * If it is a ring of carbons put cyclo at the front of the
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Mrs. Feeney Biology 9 October 16‚ 2012 Identifying Organic Compounds Objective: To use indicators to test for the presence of organic compounds in certain substances. Theory: Major types of organic compounds in some common foods are Lipids‚ Carbohydrates‚ and Proteins. An indicator is a chemical compound that changes color and structure when exposed to certain conditions and is therefore useful for chemical tests. The purpose of using distilled water as one of the substances in the test
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