Calculate the milliliters of a 2.80 M K2SO4 solution to obtain 1.90 moles of K2SO4

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

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.

Which statement best describes the function of enzymes?