Your mass
Europe, Asia, and Africa are all on the same continental land mass, but they are split apart politically.
Any volume of non-vacuum anything has mass. Any mass has volume. Both mass and volume have an 'm' in the word. Other than that, they are not at all the same thing.
There is a thing called heavy water. It is pure water that has a deuterium in it known as D20 instead of H20. It is pure but does not have the same mass.
No, the atomic mass is the average mass of the atom and the atomic diameter is the average diameter of the atom
Yes England and Scotland are the same land mass.
Asia and Europe both share the same land mass.
No. In general, you can only convert units that measure the same thing: thus, you can convert length to length, area to area, mass to mass, etc.
Mass and mass are the same thing.
Mass is a property of matter but mass is not the only property of matter. Mass and property do not mean the same thing any more than Ford and car mean the same thing.
What is the continents of asia are really parts of the same land mass?
It doesn't make sense to convert that. In general, you can only convert between units that measure the same thing - length to length, area to area, mass to mass, etc.
Mass.
No it is not.
in km
No. The weight is the mass times the acceleration. W=ma. The weight can be zero if the acceleration is zero, even if the mass is positive. Mass and weight are not the same thing.
No. Mass and kinetic energy are not the same thing.