Abstract: Water potential is the measure of free energy of water in a solution. The purpose of this lab was to find the water potential of a potato cell. The problem of this lab was‚ if there was a high molarity of solute‚ would it have a positive or negative water potential? The hypothesis of the experiment was‚ if there is a high molarity of solute then the water potential would be lower or negative. After obtaining potatoes‚ we cut them into pieces‚ weighed them‚ and then placed them in a solution
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Letersky Altvater Altvater Aiken 3. Before any row can be entered in the SECTION table‚ the COURSE_ID to be entered must already exist in the COURSE table. Write an SQL assertion that will enforce this constraint. 4. Write SQL definition commands for each of the following queries: a. How would you add an attribute‚ CLASS‚ to the STUDENT table? b. How would you remove the IS_REGISTERED table? c. How would you change the field for FACULTY_NAME from 25
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Indicate the effects of the transactions listed in the following table on total current assets‚ current ratios‚ and net income. Use (+) to indicate an increases‚ (-) to indicate decrease‚ and (0) to indicate either no effect or an indeterminate effect. 4-10 | Total Current Assets | Current Ratio | Effect on New Income | a. Cash in acquired through issuance of additional common stock | + | + | 0 | b. Merchandise is sold for cash | + | + | + | c. Federal income tax sue for the previous year
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= -2.174‚ c = .461‚ and d = 1.909‚ 1. Determine the price elasticity of demand. =-2.174 2. Determine the income elasticity of demand. = 0.461 3. Determine the cross price elasticity of demand =1.909 4. How would you characterize the demand for haddock? -2.175 = demand is elasticity as it is more than 1 0.461=if income went up 1% its effect is minimum. 1.909=if price elasticity is 1.909 it will effect haddock. 5. Suppose
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1. List at least five reasons why people visit Web sites. • Learn about products or services that the company offers • Buying products or services that the company offers • Obtaining information about warranty‚ service‚ or repair policies for products purchased • Obtaining general company or organization information • Obtaining financial information for making an investment in the compnay or organization • Identifying the people that manage the organization • Obtaining contact information
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Water Testing Lab Conclusion In this lab‚ chemical tests were used to check for the presence of calcium‚ chloride‚ and sulfate ions in water samples. To do this‚ the testers started with five samples: a reference‚ a sample of only the chemical being tested for‚ a control‚ distilled water‚ two home water samples‚ and a school water sample. To test for the ions in the water‚ a chemical that would react with the ion and create a precipitate was added. If the precipitate was not easily visible‚ a
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The purpose of this lab was to model the significant differences in density that oceans experience when glaciers and polar ice caps melt. It demonstrated that the variation in density greatly affects salt water. I discovered that the increase in freshwater causes a decrease in density. I made three claims. First‚ the higher the salinity of the water is‚ the denser it will be. This was shown in my data by the fact that‚ with 0mL of fresh water‚ the density was 1.108 g/mL For every milliliter of fresh
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In conclusion‚ after conducting the lab‚ the emergent properties of water were tested and proved. These trials and experiments were able to verify the adhesion‚ cohesion‚ polarity‚ temperature stabilization‚ solvency‚ and density changes exhibited by water. During the glass and wax paper lab‚ we observed the adhesive properties of water. When a droplet of water touched the glass‚ it dispersed immediately. The droplet placed on the wax paper remained intact and in droplet form. Also‚ when the
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Investigation Followup PROCEDURE The purpose of this experiment is to test different minerals to see where on the Mohs hardness scale they would fit. My question and problem‚ “What mineral is the hardest out of all?” My hypothesis is by looking at all mine minerals‚ amethyst is the hardest mineral‚ followed by opal‚ than apatite‚ then halite‚ than graphite and the muscovite will be the softest mineral. To begin this experiment‚ I purchased and gathered all my materials
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Lab Report: Hard Water Purpose: The purpose of this lab is to determine whether a liquid is hard water or not. Background: Hard water is the water that has a high amount of mineral in it‚ usually Ca2+ and Mg+. These cations enter the source of water by leaching from minerals within a wet underground layer of water- bearing rock‚ or an aquifer. According to the WHO‚ hard water is not harmful to human’s health but it’s a serious problem in the water industry. Household plumbing and appliances
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