1. Chemical Identification Tests1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

2. calcium ions
Symbol
Test
Result
Ca2+
Flame test
Brick-red flame

3. sodium ions
Symbol
Test
Result
Na+
Flame test
Orange flame

4. lithium ions
Symbol
Test
Result
Li+
Flame test
Crimson red flame

5. potassium ions
Symbol
Test
Result K+
Flame test
Lilac flame

6. Copper(II) ions Symbol Cu2+ Test Add sodium hydroxide solution Result
Blue precipitate

7. Iron(II) ions Symbol Fe2+ Test Add sodium hydroxide solution Result
Dark green precipitate

8. Iron(III) ions Symbol Fe3+ Test Add sodium hydroxide solution Result
Brown precipitate

9. ammonium ions Symbol NH4+ Test Add sodium hydroxide solution Result
Pungent gas that turns litmus paper blue

10. Oxygen gas
Symbol
Test
Result O2
Glowing spill
Spill relights

11. Hydrogen gas
Symbol
Test
Result H2
Ignite
Squeaky pop

12. Ammonia gas Symbol NH3 Test Insert damp litmus paper Result
Litmus paper goes blue

13. Carbon dioxide gas Symbol CO2 Test Bubble trough limewater Result
Limewater goes cloudy white

14. Chlorine gas Symbol Cl2 Test Insert damp litmus paper Result
Litmus paper bleaches white

15. chloride ions Symbol Cl- Test
Result
Cl-
Add nitric acid then silver nitrate solution
White precipitate

16. bromide ions Symbol Br- Test
Result
Br-
Add nitric acid then silver nitrate solution
Cream precipitate

17. iodide ions Symbol I- Test
Result I-
Add nitric acid then silver nitrate solution
Yellow precipitate

18. Sulfate ions Symbol SO42- Test
Result
SO42-
Add hydrochloric acid then barium chloride solution
White precipitate

19. carbonate ions Symbol CO32- Test Add hydrochloric acid Result
Effervescence (or bubbling)