If an adult dog has 78 chromosomes, the number of chromosomes in a dog’s sperm cell will be.

Which statement justifies that phosphine (ph3) is a polar molecule?

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

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.