Define the following terms:  Spurious: Dichotomous: Empirical:

What is inference and what is its relationship to theory?  

A school district in Sarnia is considering where to locate its central office.  Note: the office must be located at an existing school for cost reasons. There are five schools in the district, with locations and size given in the following table. Location Size (Enrollment) (x,y) Coordinates x-calcs y-calcs A 2,500 (5,5)     B 1,000 (0,5)     C 10,000 (0,0)     D 4,500 (5,0)     E 7,500 (2,1)               Required:   1. Use the Centre-of-Gravity method to determine at which school the central office should be located to minimize the average distance between the office and students. [5 marks]   2. Consider one intangible (non-financial) cost that should be considered when making this location decision. [1 mark] NOTE: X-calc and y-calc values must be shown to receive marks.

Iron(II) Sulfate is aA) fixed charge metal binary saltB) variable charge metal binary saltC) fixed charge metal ternary saltD) variable charge metal ternary saltE) None of the above

Which statement best describes an ionic bond? A. Electrons are shared equally between atoms. B. Electrons are transferred from one atom to another. C. Two nonmetals share a pair of electrons. D. Orbitals overlap to form a sigma bond.

Determine the electron geometry, molecular geometry, and polarity of SF6.A) eg=trigonal bipyramidal, mg=trigonal bipyramidal, nonpolarB) eg=tetrahedral, mg=tetrahedral, polarC) eg=trigonal bipyramidal, mg=see-saw, polarD) eg=octahedral, mg=trigonal bipyramidal, nonpolarE) eg=octahedral, mg=octahedral, nonpolar

Determine the electron geometry (eg) and molecular geometry (mg) of NCl3.A) eg=tetrahedral, mg=tetrahedralB) eg=linear, mg=trigonal planarC) eg=trigonal planar, mg=bentD) eg=linear, mg=linearE) eg=tetrahedral, mg=trigonal pyramidal

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Give the approximate bond angle for a molecule with an octahedral shape.A) 109.5°B) 180°C) 120°D) 105°E) 90°

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