5. Which of the following is ignored when determining the relative mass of atoms? (2 points)
Electrons
Neutrons
0000
Nucleus
Protons
0

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

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.

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?