Part Two: Learning about the Contents of the US Constitution Assignment Information: The US Constitution provides the framework of the US government. Since 1789‚ the document has been formally changed 27 times. People debate the meaning and interpretation of the Constitution‚ causing conflict among different groups. You are responsible for learning and knowing the information below in order to comprehend how the US government is supposed to work. Assignment Directions: (1) Read the US
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identify the possible candidate keys‚ the primary key‚ a probable foreign key‚ and potential secondary keys. a. PARTS (PART_NUMBER‚ STORE_NUMBER‚ PART_DESCRIPTION‚ QTY_ON_HAND‚ COST‚ RETAIL_PRICE) Candidate keys: PART_NUMBER is the only candidate key. No other field will identify parts uniquely. Primary key: PART_NUMBER is the primary key. Foreign key: STORE_NUMBER is a foreign key from the STORE table. Secondary keys: There are no other potential secondary keys. b. CUSTOMER (CUSTOMER-ID‚ CUSTOMER_NAME
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SCH3U0 Writing Chemical Formula FOR DUMMIES Name: _____________ Your task is to create a dichotomous key to help students WRITE FORMULAE for all the different types of compounds that we have learnt this unit. Your audience will be students beginning their grade ten who have minimal knowledge on writing chemical formulas. They are able to: • Read the periodic table and identify metals‚ metalloids‚ and non‐metals • Identify polyatomic‚ but don’t have them memorized • Read the oxidation states (charges) on the periodic table
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CHEMISTRY OF NICOTINE Date Submitted: March 17‚ 2010 Introduction Tobacco has a long history and has had a significant impact since first introduced to Western society in the 16th century. There is evidence that Native Americans were using tobacco long before the 16th century. They smoked through a pipe for special religious and medical purposes but the worldwide spread of tobacco was initiated as a result of European discovery by Spanish‚ Portuguese and French explorers.(1‚2) Christopher
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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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hydrogen-bonding forces of attraction? (2 points) H2O‚ NH3‚ and HCN all experience hydrogen-bonding forces of attraction. Which of the molecules do you think would have the highest boiling point and which would have the lowest? Explain your answers in terms of molecular geometry and intermolecular forces. (4 points) The highest boiling point is H2O while the lowest boiling point would be SO2. Compare H2O and H2S in terms of shape‚ intermolecular forces‚ and boiling point. Explain your
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Reporting computed data • Multiplication and Division 5.02 x 89.665 x 0.10 = 45.0118 How many significant figures should we take for the answer? The relative uncertainty of each numbers = 45.0118 x = 4.50 ‚ 45.0118 (2 sig. figures) ‚ Addition and subtraction 5.74 + 0.823 + 2.651 = 9.214 How many significant figures should we take for the answer? 5.74 + 0.823 + 2.651 9.214 9.21 (2 decimal places) Logarithms and antilogarithms • In a logarithm of a number‚ keep as
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A Comparative Study On The Combustibility Of Ethanol (C2H5OH) And Hydrogen Peroxide (H2O2) Mixtures As Fuel Chemistry January 31‚ 2013 Revised February 15‚ 2013 Abstract In this experiment‚ the proponents used mixtures with varied proportions of ethanol and hydrogen peroxide to know which would make a more efficient‚ clean‚ and stable combination. Compared to conventional fuels‚ ethanol contains 36% oxygen thus resulting in more complete combustion. This greatly lowers
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Immediately cap with the largest test tube and hold there until bobbling stops. Have another group member light a splint with the match and then blow it out. Quickly lift the test tube and put the glowing splint into the tube. Record observations and answer the lab questions. For cleanup‚ place splints in the dish with water. Dump your products into the evaporating dish at the station. Rinse the small test tube with water and return all items as you found them. The materials included the tongs‚ large
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9.3 – The Acidic Environment: Δ. Construct word and balanced formulae equations of all chemical reactions as they are encountered in this module: NOTE: In chemistry‚ [x] means “concentration of x” in moles per litre (mol/L). EG: [H3O+] means “concentration of H3O+ ions” in mol/L. BASIC reactions to remember: Acid reactions: acid + base salt + water acid + metal salt + hydrogen gas acid + carbonate carbon dioxide gas + salt + water Formation of hydronium: H+ + H2O H3O+ Reactions of
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