How do you write a chemical equation from only words? I don't understand how you can take a worded problem and convert it into coefficients and elements. I know how to solve a chemical equation, but I'm stuck on converting words to an equation.

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.