You could use grams (as a decimal fraction) or milligrams.
The mass doesn't change; just the numbers.
No, the mass is the same. Only the numbers are different.
Grams (g)
That would be (5.8)/150 mass units per mL or 0.0386666 mass units per mL
kg
the gram
Three units! There are nearly 50 units for measuring mass. And that is without any of the multitude of metric units: nanogram, microgram, milligram, gram, or intermediate measures. See the Wikipedia link.
Kilograms and multiples (or fractions) of it.
The units for the volume if you are measuring any liquid or solid is metre^3/cm^3 as density = mass/volume. The units for mass is grams
In science, the SI unit for mass is Kilograms (Kg)
grams or kilograms (more often)
Kilogram Gram
Your height (centimetres) and mass (kilograms).
kilogram gram milligram
Gramm (g) Weird countries sometimes use other units such as ounces or pounds.
For measuring distance, meter is used. For measuring mass, kilogram is used. For estimating time, second is used.
There are different units for measuring different characteristics: mass, weight, length, area, volume, temperature and so on.