Down |
1. | An oxidising agent itself is__________ |
2. | The _____on a complex ion is the sum of the oxidation numbers of the species in that ion. |
5. | Oxygen in compounds is assigned an oxidation number of -2 except in a |
7. | In a reaction between KMnO4 and Fe2+ , permanganate goes from______to colourless |
8. | When oxidised this specie may change from (+2) to( +3). |
10. | _________ peroxide can be both an oxidising and reducing agent |
11. | In a reaction between Cl2 and NaI the resulting colour is ________ |
14. | The oxidation number of a specie that consists a_____ion equal to the charge on that ion. |
17. | In a compound______is always assigned +3 |
18. | Sulphuric acid is used to_______ some oxidizing agents |
19. | __________ In compounds is always given an oxidation number of -1 |
21. | Cl2 + 2Fe2-> 2Cl- + 2Fe3+: In this equation iron (II) acts as the______ |
22. | Chlorine is a very powerful_______agent. |
23. | The oxidation number of a specie becoming more negative is called____ |
24. | Elements in their_______state have an oxidation number of zero. |
26. | Carbon in C6H12O6 is assigned an oxidation number of_________. |
29. | Chemically uncombined elements are assigned an oxidation number of _________ |