Define reduction and give an example of reduction. Define oxidation and give an

Question

Define reduction and give an example of reduction. Define oxidation and give an example of oxidation. In the following reaction, Mg_(s) + HCI_(aq) rightarrow Mg^+2_(aq) + 2 Cl^-2 + H_2(g), which is the reducing agent and which is the oxidizing agent? Using a reference book, what is the order of activity for the following metals: Al, Ca, Cu, Fe, Mg, Hg, Na, Sn, and Zn? You are doing a study of activity of the following nonmetals: F, Cl, Br, and I. Explain how you can use displacement reactions to determine their order of activity. Having the following oxides: CuO, Ag_2O, and MgO, outline a procedure by which you could demonstrate which is the most to least active of these metals. Cu, Ag and Mg.

Explanation / Answer

2) Oxidation occurs when an atom LOSES electrons. Reduction occurs when an atom GAINS electrons. You can figure out which atoms have gained/lost electrons by looking at "oxidation numbers", which are kind of like charges.

Oxidation is a gain of oxygen. Reduction is a loss of oxygen. For example:

Fe2O3 + 3CO ---> 2Fe + 3CO2

5) Activity oder

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