How many different kinds of atom are there in elements and compounds

Why is the structure of molecule important to its function?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

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.