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In the chemical reaction shown below, how many milliliters of the 0.125 M sodium chloride solution must be added to 2.50 L of a 0.00458 M lead (II) nitrate solution to completely precipitate the solid?   2NaCl (aq)  +  Pb(NO3)2  (aq)  –>   PbCl2 (s) +  2NaNO3  (aq)

Determine whether the series      

Suppose it is known that a Maclaurin series      

Which of the following is NOT a base?

After you have submitted your exam, remember to immediately take a clear photo of your written work and to upload it through the proper link in this week’s module.    

Edit this Question Delete this Question Please use your removable webcam or laptop to do a brief scan of your work area.  If your webcam is removable, be sure to include an image of the monitor.  Be sure to follow the guidelines in the instructions to avoid a significant loss of points. 

How many grams of calcium nitrate must be diluted to 250.00 mL in water to produce a 1.75 M solution?

On a piece of paper, draw the best Lewis structure for the ozone molecule, O3, and answer the following questions here: a.  What is the electron geometry around the central oxygen atom? b.  What is the molecular geometry around the central oxygen atom? c.  What is the bond angle between the outer oxygen atoms? d.  What is the polarity of the molecule?  If there is a dipole, state the direction.

In your own words, explain why ammonia is a polar molecule, but ammonium is a nonpolar ion.

The Periodic Table and Formula Sheet can be accessed by right clicking on these links and opening the resource in a new tab or window.  Paper Copies are not allowed.