| Answer | Crossword Clue |
|---|---|
| ACIDIC | Having a low pH |
| ACID | It has a low pH |
| ACID | Substance with a low pH |
| ACID | Compound with a low pH |
| BASIC | Having a high pH |
| ALKALINE | Having a high pH |
| ALK | Having a high pH (abbr.) |
| NEUTRAL | Having a pH of 7 |
| ACID | Having a pH below 7 |
| BASIC | Having a high pH, e.g. |
| BASIC | Having a pH higher than 7 |
| ACID | Having a pH value of less than 7 |
