Which formula represents propyne?
(1) c3h4 (3) c5h8
(2) c3h6 (4) c5h10

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

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.