Chemical Composition

This is the elemental chemical composition of the average adult human body.

You probably know the sun consists mainly of hydrogen and helium. Can you name the other elements found in our closest star?

Learn about chemical composition of the Earth's air. Percentages of the most common compounds are given, according to volume.

Find out what elements are in the human body and what these elements do.

Do you know the chemical composition of the human body? Here's the list of elements, given in percentage according to weight.

Do you know how many liters of blood are in your body? How about what's in your blood? Let's learn about the chemistry of human blood.

This is a table that shows the elemental chemical composition of the Earth's crust.

Urine is a liquid produced by the kidneys to remove waste products from the bloodstream. Human urine is yellowish in color and variable in chemical composition, but here is a list of its principal components.

This table shows the chemical composition or abundance of chemical compounds in the Earth's crust.

Rubbing alcohol is used for disinfection and to soothe or cool skin. Here is a look at the chemical composition of rubbing alcohol.

This is a look at the chemical composition of battery acid or the liquid used in car or automotive batteries.

This is a look at the chemical composition of vinegar.

This is the chemical formula for table sugar, which is sucrose.

Petroleum jelly or petrolatum was discovered as a paraffin-like material coating oil rigs. Since then, it has been used in various ointments and as a lubricant. Here is a look at what petroleum jelly is and its chemical composition.