3. concentric circles (one smaller circle inside another). as
scientists attempt to understand the structure of the atom, why
was “bohr's planetary design” widely accepted? what do the
principles of gravity illustrate about keeping electrons close to
the nucleus of the atom?

is has three carbons, so the answer is propylamine.

meth-

eth-

prop-

but-

pent-

hex-

hept-

oct-

non-

explanation:

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 .