PLEASE HELP VERY URGENT

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. 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.

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next