Which sub atomic particles revolve around the nucleus

What is the relation between concentration of reactants and the rate of chemical reaction?

Define dew point. i am writing this part to be able to ask the question

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.