Classify each element as a representative element, transition metal, or inner-transition metal Representative element (main-group element) Inner-transition metal (lanthanide/actinide series) Transition metal No Ru Sr Se Bi Sm

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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