Redox Study Sheet

Name:_______________

Date:__________

1. The _______ of fuels, the _________ of metals, __________ and ________ all involve oxidation and reduction.

2. When an element loses an electron, it is said to be ________.

3. When an element gains an electron, it is said to be _______.

4. _________ and _________ always occur together.

5. Oxidation-reduction reactions are often called _____ reactions.

6. The process by which a metal combines with water, air or other materials in the atmosphere is called _________.

7. The _______ of iron is an example of _________.

8. In the _______ of iron, the iron _____ electrons to the oxygen in water. So in _______, the iron is ________ and the oxygen in water is _______.

9. ____ _____ is rust.

10. ________ is also oxidized by the oxygen in water or air to form ________ _____. However, ______ _____ does not _______ like rust. A thin layer of ______ _____ will protect the layers of ________ below so that this corrosion does not continue.

11. ____ also loses an electron to oxygen to for ____ _____.

12. ____ _____, like aluminum oxide is not _______. The thin layer of ____ _____ protects the metal below so that it cannot be ________.

13. The process of coating iron with zinc is called _____________.

14. Nails are _____ galvanized with ____ to protect the iron from rusting.

15. Metals which give up electrons easily (______ ______) are said to be active.

16. The ________ of a metal refers to its tendency to give up _________.

17. When metallic elements are arranged according to their activity, this is known as an ________ ______.

18. _________, _________ and ________ are the most active metals.

19. ____, ________ and ______ are the least active metals.

20. In the activity series, a metal will give up electrons to any metal which is ______ it on the activity series.

21. When elements gain or lose electrons, they are no longer called ________, but _____.

22. Elements which gain electrons are called ________ ____.

23. Elements which lose electrons are called ________ _____.

24. Any ____ active metal will give up electrons to a ____ active metal.

25. Steel ships often have bars of ____ attached to the sides of the ship. As the _____ is corroded by the ______ of water and air, the ____ will give up _________ to the steel and protect it from _________.

26. The substance which gains electrons causes the _________, and it is called the _________ ______.

27. The substance which loses electrons causes the _________, and it is called the ________ _____.

28. Household bleach (______ ____________) is a very strong _________ _____.

29. Bleach removes ________ from stains and causes the stains to ____ ____.

30. Hydrogen peroxide is also an _________ _____. It can remove electrons from the _____ _______ of _____ causing it to lose its _____.

31. _____ is also a very strong _________ _____ and can damage __________, and can even damage plastic and rubber products, such as _____.

32. Substances called ____________ are added to food to prevent _________ and the resultant ________. These substances act as ____________ by reacting with the oxygen in the air, preventing the oxygen from _________ the food.

33. Any active metal will ____ __ electrons to a ____ active metal. This principle is used to make _____________ _____ (_________).

34. As a _____ active metal gives up electrons, they flow along a _________ to do work, and are accepted by the ____ active metal.

35. An __________ is a liquid or a paste which is a good conductor of electricity.

36. ______ and _____ are good electrolytes.

Oxidation-Reduction Notes
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