Types of Reactions

Aloha guys! 


As you guys should remember from last year; we learned about the six different types of reactions! There is synthesis, decomposition, single replacement, double replacement, combustion, and neutralization.
But if you're like me and you forgot everything there is to know about these reactions, here's a little review on synthesis & decomposition:

A: Synthesis

- reaction that combines two or more reactants to form one product.

haha that photo just tells all of us... Don't eat too much worms, or else we'll become like that bird on the product side.


GENERAL FORMULA: A + B  → AB

So here are some examples:
ex. 1Ca + 1Cl2 → 1CaCl2

ex. 2Al + 3Cl2 → 2AlCl3

B: Decomposition 

- reaction that breaks down one reactant into two or more products.

aww look at that cute little chicky :) ..... no I'm sorry but that is actually a pretty ugly chick .. .BUT ANYWAYS, back to decomposition.

GENERAL FORMULA: BC → B + C

Here are some examples of decomposition:
ex. 1CaCO3 →  1CaO + 1CO2

ex. 1CuSO4 →  1CaO + 1 CO2
ex. 1CaCO3 · 1H2O  →  1CuSO4 + 5H2O


C: SINGLE REPLACEMENT
(metal)
- metals (+ ions) replaces the other metal

Joe, in the green, is the positive ion who replaces the other guy Frank (who is also a positive 
ion).Joe ends up being with Mary, the negative ion, while poor Frank is left alone and 
divorced... or dumped...


GENERAL FORMULA: A + BC → AC + B


Examples examples examples:
ex. Mg + 2KCl → MgCl2 + K2
ex. 2Al + 3BaO  → Al2O3 + 3Ba


(non-metal)



So this is basically the same thing, but instead of Joe ending up with Mary, he ends up with Frank...... now how awkward is that. 


GENERAL FORMULA: A + BC → BA + C


More of les examples:
ex. 2Cl2 + 2MgO → 2MgCl2 + O2
ex. 3S + 2FeI3 → Fe2S3 + 3I2



I just realized that both my pictures are of chickens or birds of somesort.... welll HERE COMES THE CAT





Well I hope you now remember what synthesis and decomposition is.
Stay tuned for Melody's continuation of the rest of the reactions!


xoxo,
Kimberly Girl