You did well on the test, didn't you?

I'm glad you could come.

He studies well.

The bathroom in my house is very spacious.

Sodium cyanide is widely used in the extraction of metals and the manufacture of electronic components.

Sodium chloride is the main component of table salt, and its chemical formula is NaCl.

In this experiment, we will use sodium hydroxide.

I do laundry using synthetic detergent.

She succeeded in breaking the glass ceiling.

This beautiful uranium glass vase glows in the dark.