The appropriate metric unit is a kilogram.
Mass is measured using kilograms.
Mass is measured in grams.
Mass is measured using kilograms.
Mass is measured in kilograms.
It is measured in grams.
The mass of any coin is typically measured in grams; the capacity or volume would be measured in millilitres.
Mass is measured in kilograms. Weight is measured in newtons. If you are asking which unit to choose to measure then mass of a marble, then you need to use the submultiple of the kilogram, the gram.
Weights are measured in newtons. Note that the mass is measured in kilograms; in popular culture, mass and weight are often confused.
Grams. Matter is measured by mass and mass's main unit is grams.
The prefix "micro-" would be best to use when measuring your own mass, as it represents a small unit. Typically, mass is measured in kilograms or grams, and using a small unit like micrograms (ยตg) can be appropriate for precise measurements of personal mass.
weight or mass is measured in kg, g. Mg can also be used.
You don't use a unit of mass to measure a volume. Mass and volume are two different things. Mass is measured in kilograms. The main unit of volume in the SI is the cubic meter, but for a kettle, the liter (= cubic decimeter, or 1/1000 of a cubic meter) can be used instead.