The unit of density is typically expressed as mass per unit volume. The most common units for density are: 1. **Kilograms per cubic meter (kg/m³)** – This is the SI (International System of Units) unit for density. 2. **Grams per cubic centimeter (g/cm³)** – Often used in chemistry and for substances like water, where 1 g/cm³ is equivalent to 1000 kg/m³.
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