Draw the Lewis Dot Structure. Make sure to WRITE the Electron Structure and Molecular Shape Names as well as their bond angle(s).

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.