This fruit is rich in malic acid.

We will use phosphoric acid in this chemical experiment.

We will use iodic acid in this experiment.

This enzyme has the function to phosphorylate proteins.

In biochemistry, phosphorylation is an important process in energy metabolism.

I live in San José.

On the seventh day of creation, God finished all his work and rested.

We celebrate our wedding anniversary on the eighteenth day of the month.

I will hold my birthday party on the twenty-eighth day of the month.

He milks the cows every morning.