SOME SPECIAL REACTIONS

SPECIAL REACTION TYPES

1. GAS FORMING RXNs

2. PRECIPITATE RXNs

3. NEUTRALIZATION RXNs

4. COMBUSTION RXNs

1) GAS FORMING RXN

Metal carbonate + Acid Salt + H2O(l) + CO2(g)

Example:

CaCO3(s) + 2HCl(aq) CaCl2(s) + H2O(l) + CO2(g)

2) PRECIPITATION RXN

A double displacement reaction resulting in the formation of an insoluble salt.

Example:

Pb(NO3)2(aq) + 2NaI(aq) PbI2(s) + 2 NaNO3(aq)

*Use the solubility table to determine if the products are insoluble (form solid), or soluble (in solution).

3) NEUTRALIZATION RXN

Acid + Base Salt + Water

Example:

HCl(aq) + NaOH(aq) NaCl(aq) + H2O(l)

4) COMBUSTION RXN

The rxn of a hydrocarbon w/ oxygen to produce CO2(g) and H2O(l).

Example:

CH4(g) + 2 O2(g)

CO2(g) + H2O(l)

SPECIAL REACTION TYPES

1. GAS FORMING RXNs

M(CO3) + Acid Salt + H20 + CO2

2. PRECIPITATE RXNs

DD Rxn where insoluble salt is formed

3. NEUTRALIZATION RXNs

Acid + Base Salt + Water

4. COMBUSTION RXNs

C#H# + O2 CO2 + H2O