Which of the following is not an important physical property of matter?

a.

boiling point

b.

density

c.

volume

d.

melting point

What is the independent variable in this investigation? mass volume sample number substance density

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.

Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?