The decomposition of ammonia to the elements is a first-order reaction with t1/2= 200s at a certain T. How long will it take the partial pressure of NH3, to decrease from
0.100atm to 0.00625atm?​

what is the density of an object that has a mass of 10 g and a volumeof 5 ml? a. 0.5 g/ mlb. 2 g/mlc. 15 g/ mld. 50 g/ ml

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.