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Friday, January 28, 2011

Types of Reactions

***Remember to balance!!!***

This stuff again? We covered that ages ago.
I KNOW WE DID!
BUT there is a little more to it this time.

First of all lets go over the 6 types of reactions.
Sythesis, Decomposition, Single Replacement, Double replacement, Combustion and Neutralization

Synthesis
This type of reaction combines 2 or more rectants to form a product

A + B ---> C

2Fe + 1O2 ----> 2FeO

Decomposition
This reaction breaks down a reactant into two or more products.

A ----> B + C

2FeO ---> 2Fe + 1O2

Singple Replacement
This reactions replaces the ion in an ionic compound.. Metal elements replace positive ions and Non-metal elements replace negative ions.

For Metals                                                      For Non-Metals
A + BC ----> B + AC                                       A+BC ---> C +BA

Ba + Ca(NO3)2 ---> Ca + Ba(NO3)2                     

Now for the extra thing I was talking about.
We are going to add something to spice up our equations.
Activity Series
The activity series is a chart which tells how reactive a metal or a a non-metal is.
The element higher up on the series replaces the ion below it on the table.
Here is what it looks like

*Note* There are more metals and non-metals that could be placed on this chart.


                                                                Reactive?
E.G. 2Li + MgCl2 ----> 2LiCl + Mg            YES

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