More Chemical Reactions

Today we learned about three more types of chemical reactions.
These were Combustion, Neutralization and Double Replacement.

Combustion: A process where a substance reacts with oxygen 

 The formula looks like this: AxBy + O2 -------> AO + BO

Here is an example of an equation which is a combustion reaction

__C7H6O2 + __O2(g) ----> ___CO2(g) + __H20 (l)

As you can see, a compound reacts with oxygen to produce carbon dioxide and water.

Now if we were to balance this it would look like:

2 C7H6O2 + 15 O2(g) -----> 14CO2(g) + 6 H2O(l)

Double Replacement:
This reaction is similar to single replacement except that it involves two compounds and either both non metal or metal compounds trade places:

AB + CD ------> AD + CB

Eg. Na2CO3 + CaCl2--> CaCO3 + 2NaCl
This is the balanced equation for a double replacement reaction:
As you can see,  the carbonate CO3 and the Chloride exchanged places .




Neutralization: This occurs in acid and base interaction , they cancel each other out = neutralization

HA + BOH ----> H2O + BA

The product is water and a salt.

Here is an example:

H2SO4 + Fe(OH)2-----> H2O + FeSO4
Balance:  1 H2SO4 + 1 Fe(OH)2 ----> 2H2O + 1 FeSO4



Here are some helpful videos http://www.youtube.com/watch?v=tE4668aarck
Here is a video that demonstrates combustion :http://www.youtube.com/watch?v=2wIz0oIZWZk