Final answer:
The density of the substance is 4.44 g/cm³, calculated by dividing the given mass of 200 grams by the volume of 45 cm³.
Step-by-step explanation:
The density of a substance can be calculated by dividing its mass by its volume.
Given a mass of 200 grams and a volume of 45 cm3, the density of the substance can be found using the density formula: density = mass/volume.
To find the density, divide the mass (200 g) by the volume (45 cm3) which yields a density of 4.44 g/cm3.
This means the substance has a density of 4.44 grams per cubic centimeter.