Make an inference need work​

What is the number of moles in 15.0 g ash3?

Explain why scientists use shared characteristics to make cladograms.

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.