How does an increase in concentration affect the rate of a reaction?

a) it speeds the reaction up

b) it slows the reaction down

c) it decreases the number of collisions

Explain what happens at the saturation point when adding salt to water at room temperature.

Adilute aqueous potassium nitrate solution is

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.