| Answer | Crossword Clue |
|---|---|
| ACID | It has a pH below 7 |
| ALKALI | It has a pH above 7.0 |
| ACID | Having a pH below 7 |
| ACID | It has a low pH |
| HELL | It has a fire down below? |
| ACID | Its pH is below 7 |
| NONBASIC | 7 or below on the pH scale |
| ACID | It's below 7 on the pH scale |
| ACID | Anything below 7 on the pH scale |
