7points: true or false. the terms "weak" and "strong" are used by chemists to describe the concentration of a solution.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

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.

Light waves can move through , but they travel fastest when they move through a(n) .