Respuesta :
Once the unit of mass is defined, samples of matter can be compared to the unit and thus measured.
Comparing a sample of matter to the standard unit of mass, or to its subdivision the gram, can be done
on an equal-arm balance.
Once the unit of mass is defined, samples of matter can be compared to the unit and thus measured.
Comparing a sample of matter to the standard unit of mass, or to its subdivision the gram, can be done
on an equal-arm balance.