We attended the cornerstone laying ceremony of the new building.

He used a familiar spirit to defeat the enemy.

The Wade-Giles romanization is often used to express the pronunciation of Chinese.

Next year, my younger brother will have his coming-of-age ceremony.

In order to find the empirical formula of this compound, you must first calculate the ratio of elements.

My company specializes in the manufacture of fine chemicals.

Chemotransmitters play an important role in the transmission of information between nerve cells.

Stoichiometry is a method for calculating the amount of substances in a chemical reaction.

No chemical flavoring is used in this ramen at all.

The concept of chemical equivalent is essential for understanding chemical reactions.