Give me all the formulas of relative density, all the formulas, all the theorems, all the states, all the rules, just give me. I don't need you to explain anything, just give me the formulas.

Here are the formulas related to Relative Density:

• Definition: Relative Density (RD) is the ratio of the density of a substance to the density of a reference substance. It is a dimensionless quantity.

• Using Densities: RD = (Density of substance) / (Density of reference substance) RD = ρ_substance / ρ_reference

• Using Mass (for the same volume): RD = (Mass of substance) / (Mass of reference substance for the same volume) RD = m_substance / m_reference

• Using Weight (for the same volume): RD = (Weight of substance) / (Weight of reference substance for the same volume) RD = W_substance / W_reference

• Common Reference Substance: For liquids and solids, the reference substance is usually water at 4°C, which has a density of approximately 1000 kg/m³ or 1 g/cm³.