Mercury has a large metallic core with a relatively thin rocky crust and mantle that has a high abundance of sulfur and potassium. Its magnetic field is off-center, which indicates that its internal structure is complex ... More »

Chalk is calcium carbonate and has the same chemical composition as limestone, marble, ground calcium carbonate and precipitated calcium carbonate. Chalk, like the other types of calcium carbonate, is in the form of calc... More »

The chemical composition of table salt is one atom of sodium (Na) to one atom of chlorine (Cl), known as sodium chloride (NaCl). Table salt also often has iodine added in for health reasons, but this does not change the ... More » Science Chemistry Atoms & Molecules

Although the chemical composition of wood varies from species to species, wood is primarily composed of carbon, hydrogen, oxygen, calcium, potassium, sulfur, nitrogen and magnesium. Most wood contains some amount of wate... More »

Mercury, the element, has a density of approximately 13.5 to 13.6 kg/m^3, and its overall mass depends on the volume collected. The planet Mercury has a mass of approximately 3.3 * 10^23 kilograms, or .055 times the mass... More »

Mercury acetate is a chemical compound with a solid crystalline structure that is white or yellow in color. This substance has a mild vinegar odor that is toxic when it is inhaled. Since mercury acetate is hazardous, it ... More » Science Chemistry

The four layers of the Earth are called the inner core, the outer core, the mantle and the crust. In addition, there are two different types of crust. The continental crust is the part that is under land, and the oceanic... More »