A portable hydrogen generator utilizes the reaction CaH_2 + H_2O ? Ca(OH)_2 + H_2

How many grams of H_2 can be produced by a 70 g cartridge of CaH_2?

What will most likely happen when two bromine atoms bond together?

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d

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.