A worm travels a distance of 40 m in 20 minutes. Calculate the average speed of the worm in m/min. Someone pls help

Lewis structure and molecular geometry for nh2cl

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.

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro