(I think) you would have to divided the number i dont know the exact answer but ya hope this help
Molality=mol/kg
342/171
=2m
Hope this helped :)
All copper atoms have atomic number 29: all their nuclei contain 29 protons. But they also contain uncharged particles called neutrons. ... The two different kinds of atom are called isotopes of copper. The neutron has a mass very similar to that of the proton, so the two isotopes differ in mass.
Electrons have less mass than a neutron.
Answer:
Explanation:
The fuel is burning completely