<span>. Density is a value for
mass, such as kg, divided by a value for volume, such as m3. Density is a
physical property of a substance that represents the mass of that substance per
unit volume. To calculate the density of mars, we need its mass and its volume. We calculate as follows:
mass of Mars = </span><span> 6.40 × 10^23 kg volume of Mars = 4</span>πr³ / 3 (assuming the planet is a sphere) r = 3395 km = 3395000 m = 4π(3395000 m)³ / 3 = 1.64 x 10^20 m^3
Density = mass / volume Density = 6.40 × 10^23 kg / 1.64 x 10^20 m^3 Density = 3904.56 kg/m^3
Therefore, the density of the planet Mars is 3904.56 kg/m^3.
Here Ca and ZnCO₃ are reactant and CaCO₃ and Zn are product . Reactants are written on the left side of equation and product are written on the right side.