Double+Replacement+III

=Station 1=  A typical double replacement reaction can occur when two ionic compounds are mixed together. In water these ionic compounds split apart into their respective anions and cations.  A reaction occurs if, by swapping anions, a product is formed that cannot split apart into anions and cat ions.  AgNO3 + KCl à  AgCl + KNO3 [] FeS + H2SO4 --> FeSO4 + H2S []

This is a real life example of a double replacement reaction:

Charlie and Cathy come to prom. Dennis and Denise also arrive. Cathy leaves with Dennis and Denise leaves with Charlie. Notice that none leave with the same sex. In chemistry, positives hook up with negatives. That is because opposites attract. []

Station 2
neutralization reactions, which are double replacement, are used to balance the pH level in swimming pools.

also baking soda reacts with acidic substances in cake batter in a double replacement reaction:

NaHCO3 + HX --> NaX + H2CO3

H2CO3 decomposes into water and CO2. The CO2 causes the cake batter to rise.

Station 3
Station 4 media type="custom" key="3677939"