| Across: |
| 3 |
Turns universal indicator PURPLE |
| 6 |
This gas re-lights a glowing splint |
| 7 |
With a lighted splint, this gas explodes with a POP |
| 8 |
Turns universal indicator RED |
|
| Down: |
| 1 |
(2 words) This gas turns lime water milky |
| 2 |
Warmed Benedicts solution will turn orange/red if this substance is present |
| 4 |
Turns iodine blue/black |
| 5 |
This turns "Biuret" purple with dark blue flecks |
|