Answer is C usa test prep users. The two main reasons why pharmaceuticals fail are:
1. they do not work
2. they are unsafe
Which of these would NOT be a constraint to creating and developing pharmaceuticals?
es )
A)
expensive
B)
takes a long time
o
computer simulations can be used to test drugs
D)
inability to use clinical trials for initial development

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .