3. if your teacher opens a bottle of ammonia at the front of the classroom,
you will smell ammonia at the back of the room a short while later.
explain what has occurred.

c is the answer because when something is left after something evaporates that shows the chemical change.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.