Which unit us used to measure mass in the metric system?

Pound

Slug

Ounce

Gram

I got ounce

No, grams.

https://mathbitsnotebook.com/Algebra1/Units/UNMetricEnglish.html

grams it is

We use ounces and pounds in the U.S. customary system. It is actually grams that we use in the metric system.

Gram

Actually, the correct unit used to measure mass in the metric system is the gram. The metric system is based on powers of ten, making it a decimal system. In this system, prefixes such as kilo-, centi-, and milli- are used to denote multiples or fractions of a base unit. In the case of mass, the base unit is the gram.

To convert between different metric units of mass, you can use the following conversions:

1 kilogram (kg) = 1000 grams (g)
1 gram (g) = 1000 milligrams (mg)
1 milligram (mg) = 1000 micrograms (µg)

If you have a measurement in ounces and want to convert it to grams, you can use the conversion factor:

1 ounce (oz) ≈ 28.35 grams (g)

Therefore, if you have a measurement in ounces, you can multiply it by 28.35 to convert it to grams.