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.

It's difficult to decipher this chemical equation.

We attended the cornerstone laying ceremony of the new building.

He used a familiar spirit to defeat the enemy.

We won the top prize at the award ceremony.

We attended our grandfather's funeral yesterday.

The closing ceremony of the Olympics was moving.

I learned how to calculate rational expressions in math class.

What is the molecular formula of this compound?