FORM 4G ELECTROLYSIS WORKSHEET TERM 3 2010-2011 1.Figure 1 below is a diagram of the apparatus used in the electrolysis of fused sodium bromide. Figure 1 a)Write the formulae for the ions present in the fused sodium bromide. b)Write an ionic equation to represent the reaction taking place at the positive and negative electrodes. c)When the heat source was removed‚ the crucible cooled and the lamp went out. Explain why the lamp went out when the crucible cooled. d)At the end of the experiment
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DNA Worksheet Trisha McCabe SCI/230 May 8th 20132 Chandreyi Basu‚ PhD Associate Program Material DNA Worksheet Answer the following in at least 100 words: 1. Describe the structure of DNA. DNA made up of units called nucleotides‚ nucleotides are made up of three molecules components‚ a nitrogen base‚ a sugar‚ and a phosphate (Simon‚ Reece‚ Dickey‚ 2010). The nucleotides are joined together by bonds between the sugar of one nucleotide and the phosphate of the next producing
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increase in size as their cells grow and divide. Almost all cells complete a full cell cycle that includes interphase and cell division. In interphase‚ cells serve their specialized functions‚ grow‚ and copy their genetic material. Mitosis is the first stage of cell division‚ in which the copied chromosomes are separated into two new nuclei. Then in cytokinesis the cell divides into two daughter cells. If no mutations or errors occur‚ the genetic material in each daughter cell is identical to what was
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Brittany Taylor 12-12-12 Essay Four The Connection Between Breast Cancer and Cosmetics Breast cancer has been one of the most destructive types of cancer within the past ten years. Breast cancer is a cancer that starts in the tissues of the breasts. The two types of breast cancer are ductal and lobular carcinoma. The most common type of breast cancer is ductal carcinoma. Ductal carcinoma is a tumor that begins in the cells that line the ducts of the breasts. Lobular carcinoma starts in the
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the United States‚ cancer is the second most common cause of death among young children between the ages of 1 and 14. More thsn 16 out of every 100‚000 children and teens in the U.S. were diagnosed with cancer‚ and nearly 3 of every 100‚00 died from the disease. In 2005‚ 4.1 of every 100‚000 young people under 20 years of age in the U.S. were diagnoised with leukemia‚ and 0.8 per 100‚000 died from it. In 2005 2.9 of every 100‚000 people 0-19 years of age were found to have cancer of the brain or central
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The Carbon Cycle is a complex series of processes through which all of the carbon atoms in existence rotate. The same carbon atoms in your body today have been used in countless other molecules since time began. The wood burned just a few decades ago could have produced carbon dioxide which through photosynthesis became part of a plant. When you eat that plant‚ the same carbon from the wood which was burnt can become part of you. The carbon cycle is the great natural recycler of carbon atoms. Unfortunately
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1. a. List four cell structures that were common to both plant and animal cells. (4 points) b. What structures were unique to plant cells? (2 points) c. What structures were unique to animal cells? (2 points)--Answer below: a. 1. Rough ER 2. Smooth ER 3. Golgi Apparatus 4. Nucleus b. 1. Chloroplast 2. Cell walls 3. Vacuole c.
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Figure 1 shows the average amount of absorbance for each tube‚ containing different levels of pH. Tube 2 had an acidic pH level‚ Tube 3 had a neutral pH level‚ and Tube 4 had a basic pH level. It is indicated that the absorbance rates were the highest for the neutral pH level‚ with a final absorbance rate of 0.166. This was followed by a basic pH (0.106). The acidic pH level had the least amount of absorbance with a final absorbance rate of 0.069. This reinforces the idea that the ALP enzyme worked
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solution NaOH is a very corrosive chemical and contact with it can cause burns to body tissue and possible eye damage. Can irriate the lungs and can cause permanent lung damage. also contact with water can generate enought heat to ignite combustibles. 2. In your own words‚ briefly explain the terms below. Copied answers will receive zero points. a. equilibrium state When a chemical reaction is equal. when the products and reactients are at equal rates b. the effect of formation of a complex a complex
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employee procedures that could lead to a network failure. 2. Why is it difficult to conduct a qualitative risk assessment for an IT infrastructure? Because it is subjective‚ based on opinions‚ no CBA‚ and no real standards. 3. What was your rationale in assigning “1” risk impact / risk factor value of “Critical” for an identified risk‚ threat‚ or vulnerability? Because it was the most serious risk. 4. When you assemble all of the “1” and “2” and “3” risk impact/risk factor values to the identified
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