Adjust the alkalinity from 70 ppm to 100 ppm in a 250.000 gallon pool using sodium bicarbonate

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

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 what happens when molecular compounds melt