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Author Archives: Anonymous

Next to each species below, choose the type of solid each wi…

Next to each species below, choose the type of solid each will form.  (Selection: atomic, molecular, covalent, ionic, metallic) Table for Question 10 Compound Type of Solid SeF4 [compound1] TiF4 [compound2] Ar [compound3] CHCl3 [compound4] Ba(NO3)2 [compound5] Zn [compound6] quartz  [compound7] Pd [compound8]

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A 1.50-L solution saturated with tin(II) iodide at a certain…

A 1.50-L solution saturated with tin(II) iodide at a certain nonstandard temperature contains .  Calculate the Ksp for this compound at this temperature. 

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You dissolve 35.0 g of solute in enough water to make a solu…

You dissolve 35.0 g of solute in enough water to make a solution that has a total volume of 200.0 mL and a density of 1.079 g/mL. Calculate the mass percent of the solution. Enter numbers and decimal points ONLY.  Enter three significant digits past the decimal point.  Your answer should be four significant digits total. DO NOT enter M, it is known that your answer is in M.

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True or False: You have 4 molecules. Molecule A is ionic, Mo…

True or False: You have 4 molecules. Molecule A is ionic, Molecule B is polar and capable of hydrogen bonding, Molecule C is polar and Molecule D is nonpolar.  H2O would be expected to have a higher boiling point than molecule C.

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Draw the Lewis Structure for BrO2- and then choose (a) the c…

Draw the Lewis Structure for BrO2- and then choose (a) the correct molecular structure (choices = linear, trigonal planar, bent, tetrahedral, trigonal pyramidal, trigonal bipyramidal, seesaw, T-shaped, square pyramidal, square planar) and then indicate whether the molecule is polar or nonpolar (choices = polar, nonpolar).  Table for Question 12 Compound molecular structure polarity BrO2- [molecularstructure] [polarity]

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You have 4 molecules. Molecule A is ionic, Molecule B is pol…

You have 4 molecules. Molecule A is ionic, Molecule B is polar and capable of hydrogen bonding, Molecule C is polar and Molecule D is nonpolar.  Which molecule would you expect to have the lowest vapor pressure? 

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The following reaction has a Kp of 0.126 at a particular tem…

The following reaction has a Kp of 0.126 at a particular temperature.  At that same temperature, the Kc is

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Name the phase change(s) that take place when oxygen is cool…

Name the phase change(s) that take place when oxygen is cooled from 110 K to 10 K at a pressure of  0.50 atm.  Select all that apply.

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Next to each species below, choose the type of solid each wi…

Next to each species below, choose the type of solid each will form.  (Selection: atomic, molecular, covalent, ionic, metallic) Table for Question 10 Compound Type of Solid SeF3Cl [compound1] Pd(NO2)2 [compound2] Xe [compound3] NH2I [compound4] Ir2S3 [compound5] Cu [compound6] diamond [compound7] Fe [compound8]

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