intermediate copper compounds back into copper metal. By weighing the copper at the beginning and at the end of the experiment the percentage yield can be determined. Method: The experiment was carried out as outlined in the practical manual. Results: Table: showing masses: Mass copper wire 0.2510 Mass crucible 28.9257 Mass watch glass 19.6213 Mass watch glass + copper 19.7890 Mass copper product 0.1677 Calculations: Percentage yield: Discussion and conclusion:
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CHEMICAL KINETICS RESULTS AND DISCUSSION The balanced equation of the reaction between sodium thiosulfate and Hydrochloric acid is: S2O32- (aq) + 2 H+ (aq) SO2 (g) + S (s) +H2O (l) Using beakers with the same diameter was very important in conducting the experiment. If different sizes were used‚ the visibility of the “x” on the paper beneath the beaker could disappear from view too early or too late than the hypothetical time depending on the depth of the solution. It was also significant
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into primary structure‚ secondary structure‚ tertiary structure and quaternary structure. It is important for all living things in the world as they form enzymes‚ antibodies and hormones. Materials and Procedures: Results and Discussions: Test for Carbohydrates Result Starch suspension When the yellowish-brown iodine was added into the starch suspension‚ the starch suspension was changed into dark blue. Potato slide Discussion Starch suspension When the
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“Analyse the results of one Twentieth century treaty or peace settlement” The Locarno Treaties of 1925 could be seen as the formal turning point for the beginning of the Locarno honeymoon era. It came as a welcome solution to the German problem at a time where they were regaining strength as a powerful nation after accepting the Dawes Plan 1924‚ which gave them financial aid from the USA – worrying nations‚ particularly those sharing borders with Germany (France‚ Belgium‚ Poland‚ Czechoslovakia)
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Medicine Analysis – Synthesising Aspirin results After recrystallisation differences between the crude and purified aspirin were noted. The impure (crude) aspirin was powered and fluffy with small clumps and was slightly yellow in colour whereas the pure aspirin has a less fluffy crystalline powder and was whiter. This showed distinct differences in the two substances but similarities were also apparent showing aspirin‚ in some level‚ was created. Before recrystallisation the crude aspirin could
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Will no gum or having gum improve test scores? Data Analysis The question being answered in this experiment is‚ “Which gum will improve memorization the best?” The hypothesis for this experiment is‚ “If the gum flavor is altered‚ then one flavor will improve memorization more than another flavor.” The independent variable is the flavor of the gum. The dependent variable is the scores after taking the test with the different flavors. The control group was the test scores without any gum.Experimental
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My lab results were similar to my hypothesis. My hypothesis was that the densest object would be the rubber stopper. In the lab results the densest object was the penny and the rubber stopper was second. My hypothesis was switched. My hypothesis was correct when I stated that the macaroni was the third densest object. My hypothesis was also correct for the dice‚ but the bead and the dice share the same density. So they are both the fourth densest item. I was wrong with my hypothesis when I placed
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Assessment Results The use of tests can provide valuable information to be used in developing a successful educational plan‚ but testing results alone cannot fully determine a student’s needs. A licensed staff will always be responsible for interpretation of test results‚ but the paraprofessional may help with scoring‚ proctoring‚ or recording during the testing. In addition‚ the paraprofessional may have insight into the student’s stress level during the test or other factors that may affect results in
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Abortion is the ending of pregnancy before birth and is morally wrong. An abortion results in the death of an embryo or a foetus. Abortion destroys the lives of helpless‚ innocent children and illegal in many countries. By aborting these unborn infants‚ humans are hurting themselves; they are not allowing themselves to meet these new identities and unique personalities. Abortion is very simply wrong. Everyone is raised knowing the difference between right and wrong. Murder is wrong‚ so why is not
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Introduction Sample x results Sample y results Elasticity and Elastic Limit Yield Point and Plasticity Ultimate Tensile Strength Stiffness Ductility Brittleness Hooke’s Law Young’s Modulus Conclusion Sample x graph Sample y graph Sample z graph List of references Page 2 Page 3 Page 4 Page 5 Page 5 Page 6 Page 6 Page 7 Page 7 Page 8 Page 8 Page 9 Page 11 Page 12 Page 13 Page 14 Page 1 of 15 University No. 11365048 The Tensile Test I have been provided with laboratory results from tensile tests
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