Do you suppose he's going to let us get near him with acid in our hands?

It was almost like he had been touched with acid.

That was because the faces and hands had been burned with acid.

He dropped them on the bed as if they were coated with acid.

Substances on the Earth's surface will come in contact with air, water or acids.

"You are making some rather strange remarks," she said with acid in her voice.

They were etched in her brain as if with acid.

She shuddered as though he had marked her with acid.

Nothing unusual so far but someone had replaced the water with pure acid.

Not all half reactions must be balanced with acid or base.