I went shopping at Ion Mall.

There are many children in this park.

There are many people in this room.

Multinational corporations have bases all over the world.

We will use calcium chloride in this experiment.

Calcium oxide is one of the main components of cement.

Calcium carbide is a major raw material for acetylene gas.

Ionization energy is the minimum energy required for an atom or molecule to lose an electron.

The term 'Eta' symbolizes historical discrimination and should not be used in modern society.

Taki is my best friend.