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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.

Which pH shown below would indicate a slightly acidic solution?

What would be the aqueous product formed when chloric acid is neutralized with sodium hydroxide? 

Write the balanced molecular, complete ionic, and net ionic equations for the neutralization of hydrochloric acid with calcium hydroxide.

What is the pH of a solution that has a hydronium ion concentration of 1.0×10-8 M?

Gastric ulcers are caused by ________

Vaccinated individuals can infect those around them, providing ___________ immunity.