Name: _________________________________ Predicting Molecular Geometry and Hybridization 1. In each case‚ predict (a) the approximate bond angle(s)‚ (b) the hybridization around the underlined atom. (Note: It is helpful to first sketch the Lewis stucture!) Molecule or Ion (1) OF2 (2) H2CO (3) NO2+ (4) BF3 (5) SbF5 (a) No. of valence e - ‘s (b) Lewis structure (c) Approximate bond angle(s) (d) Hybridization (e)
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Find . (2) May 2012 5. Find the set of values of x for which (a) 2(3x + 4) > 1 – x‚ (2) (b) 3x2 + 8x – 3 < 0. (4) May 2013 6. Figure 1 Figure 1 shows a sketch of the curve with equation y = f(x). The curve has a maximum point A at (–2‚ 3) and a minimum point B at (3‚ – 5). On separate diagrams sketch the curve with equation (a) y = f (x + 3)‚ (3) (b)
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Oxide Composition (16 marks) (b) Describe two reasons why White Cement is more expensive than Ordinary Portland Cement (4 marks) (c) With the aid of proper sketch‚ explain the mechanism of superplasticizer in enhancing the fresh concrete workability (5 marks) CONFIDENTIAL BAA/BAE/11 12111BAA1312 QUESTION 2 (a) With the aid of proper sketch‚ explain the three types of slump in fresh concrete workability test (6 marks) (b) Based on the classification of fine aggregate grading‚ classify these
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EG4012 Engineering Project 4th Year BEng Honours Project Rotary Table and Sample Holder for RED By Thomas A. Lindie 51011245 Project Supervisor: Professor Marian Wiercigroch School of Engineering University of Aberdeen Kings College 2013-2014 Abstract The project is titled “Rotary Table and Sample Holder for Resonance Enhanced Drilling (RED)” and the following thesis will be used to address the work that has been carried out throughout the year in aid of achieving the goals that this
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B. OLSON ECE 407 Homework 1 Transistor sizing For this homework unless told otherwise refer to the AMI .5um process handout. Assume that VTP = -.94V and VTN = .79V. Assume that all transistors are biased in saturation. Determine the W/L ratio needed to bias an NMOS transistor with 50uA of current with Vdsat = .2V. Determine Vg if Vs = 0. [pic] Determine the W/L ratio needed to bias a PMOS transistor with 50uA of current with Vdsat = .2V. Determine Vg if
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Name:_______________________________________________Date:____ _____Block:______ Diffusion In Agar Cubes Is Bigger Better? OR Is Smaller Smarter? Adapted from Flinn Scientific Publication No. 10110 Introduction: Diffusion is one of the very important processes by which substances such as nutrients‚ water‚ oxygen‚ and cellular wasted are transported between living cells and their environment. This activity will help you explore the relationship between diffusion and cell size by
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Society and Class in “A Good Man is Hard to Find” In Flannery O’Connor’s short story‚ “A Good Man is Hard to Find” the grandmother and the Misfit become the main focus even though the other characters are involved in the story. Throughout the entire story‚ The Misfit is portrayed as the symbol of evil because he was in jail; he escaped from jail‚ and he committed murders. The grandmother believes to be greater than the people that she are around because of the “good” that she portrays. The conventional
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(2) (c) Show that x – ‚ for x . (2) (d) Find expressions for f′(x) and f″(x). Hence describe the behaviour of the graph of f at the origin and justify your answer. (8) (e) Sketch a graph of f‚ showing clearly the asymptotes. (3) (f) Justify that the inverse of f is defined for all x and sketch its graph. (3) (Total 20 marks) 6. Let f be a function with domain that satisfies the conditions‚ f(x + y) = f(x) f(y)‚ for all x and y and f (0) ≠ 0. (a) Show that f (0)
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INTERATOMIC BONDING‚ CRYSTAL STRUCTURES 1. Specify the type of atomic bonding for each of the following materials: a. Magnesium oxide (MgO) b. Tungsten (W) 2. Describe the types of primary bonds and differentiate between these primary bonds. 3. Sketch the bonding between Mg and O and identify the possible properties for the elements. Given the atomic number for Mg and O are 12 and 8‚ respectively. 4. Briefly describe the principal types of bond which exist between Fe atoms and discuss the influences
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| 1 CORRECT | | Which coordinate system uses two angles and one distance? | | | A) | world | | | B) | spherical | | | C) | local | | | D) | cylindrical | | | | | | | | 2 INCORRECT | | Which coordinate system uses two distances and one angle? | | | A) | world | | | B) | spherical | | | C) | local | | | D) | cylindrical | | | | | | | | 3 INCORRECT | | If you are going to create a tangent arc between two arcs that cannot intersect
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