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What's A Matter University (good old Whatsamatter U) is developing a database to manage academic issues. You are asked to assist in the design of the database. Sketch the Entity-Relationship diagram for each of the following business needs. Your answer must adhere to the following guidelines: a) You need to provide a separate E-R diagram for each of the questions, not a single diagram that addresses all five questions; b) Your model should follow the "crows foot" notation, as described in Chapter 4 (pp 253-255) of the text.
Lakeside Hospital is comprised of the following entities:
Based upon the above descriptions, create entity relationship diagrams for the following business rules. Your answer must adhere to the following guidelines: a) You need to provide a separate E-R diagram for each of the questions, not a single diagram that addresses all five questions; b) Your model should follow the "crows foot" notation, as described in Chapter 4 (pp 253-255) of the text.
A hypothetical compound has a formula X4YZ5. if the atomic masses of X, Y, and Z are 165.3amu, 75.5amu and 37.2 amu. Calculate the % composition by mass of the compound
Consider the electron configuration of Al: (1s)^2(2s)^2(2p)^6(3s)^2(3p). Write down all possible terms describing this configuration. Which term describes the ground state of Al according to Hund's rules
Explain the bond in O2 is shorter than the O-O bond in compounds that contain an O-O single bond. Define this observation.
For the equation, add phase labels (s,l,g) then write the total balanced ionic equation. Circle every spectator ion in the total ionic equation. Write the final balanced net ionic equation
calculate the molar mass of an unknown sunstance, if the freezing point of a solution containing 1.00 g of the unknown in 100g of camphor is 165.4 C.
A 10.0 lb bag of 20:10:5 fertilizer is 20.0% nitrogen by weight. a) Calculate how many grams of nitrogen are contained in the bag. (I got 907 grams of Nitrogen)
1. how many grams of the product formed at the cathode in the electrolysis of an aqueous solution of cupric chloride
1) Write a balanced, net ionic equation for the reaction of Cu(OH)2 with NH3. 2) Write a balanced, net ionic equation for the reaction of Zn2+(aq) ion with
Consider a mixture of argon and helium. The density of the mixture measured at t=22.8 C and p=791 torr, is d=0.662 g/L. What is xar, the mole fraction of argon in the gas mixture? You may assume that argon and helium behave ideally for the conditi..
Arrange these compounds in order of increasing boiling point and explain your reasoning. (assume similar mass) CH3OCH3 CH3CH2CH3 CH3CH2OH 2. Which of the following compounds would have the greater viscosity?
Draw the skeletal structure of the enantiomer(s) of (2S,4S)-(+)-rose oxide. (Draw all enantiomers if more than one exists.) Draw the skeletal structure of the diastereomer(s) of (2S,4S)-(+)-rose oxide. (Draw all diastereomers if more than one exists..
A mixture is prepared using 25.00 mL of 0.08000 M aniline, 25.00 mL of 0.06000 M sulfanilic acid and 1.00 mL of 1.230 × 10-4 M HIn and then diluting to 100.0mL
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