Answer:34.55
explanation:number of neutrons=mass number-atomic number
the mass number for copper is 63.55 so you do 63.55-29 (29 is the atomic number) and you would get 34.55
Totally false. There is no process of condensation for dry ice as it either sublimes from dry ice to co2 or sublime back to dry ice
Answer:
its where a whale has died and the carcass of the whale sinks to the depth of the oceanic floor.
:) hope that helps
Explanation:
Clouds are formed by water then it evaporates into air
