Transfer of Electrons: Redox notes

In class yesterday, we learned about redox reactions and the different types. In redox reactions, electrons are transferred from the metal to the nonmetal. If a species loses electrons, it is said to be oxidized, and it is the reducing agent. On the other hand, if a species gains electrons,it is said to be reduced, and it is the oxidizing agent. A way to remember this is:

http://www.chemguide.co.uk/inorganic/redox/definitions.html

In redox-single replacement reactions, the metals change particles and the driving force is the transfer of electrons. The reaction is based on a reactivity series. Something to remember is "like attacks like." So, a metal attacks a metal, and a nonmetal attacks nonmetals. Below is an example:

http://makahiki.kcc.hawaii.edu/chem/single_displ_rxn.html

Next, we practiced synthesis reactions. Synthesis reactions occur when two or more reactants combine to form one product. The general formula is A + B = AB. Decomposition reactions are the opposite, so one reactant produces two or more products. The general formula for decomposition reactions is AB = A + B.

Lastly, we reviewed combustion reactions as our last redox reaction. In a combustion reaction, the reactants always include water, and produce carbon dioxide and water. Below is an example: 

http://www.angelfire.com/un/sch3u1/combustion.html

Here are a couple videos that further explain redox reactions:

Tyler DeWitt

Bozeman Science