Which type of reaction is #AlCl_3 + 3 KOH ->Al(OH)_3+ 3 KCl#?
A double replacement reaction
none of the atoms or polyatomic ions change the oxidations states, so it is not a oxidation reduction reaction.
The reaction follows the general form of a double replacement
The positive three ion of Al disassociates with the Chlorine -1 ion.
then the still positive +3 ion of Al then combines with the -1 OH
The positive +1 K disassociates with the Hydroxide ion -1 ion then the still positive +1 K ion combines with the -1 Chlorine ion.
This is a classic example of a double replacement reaction.
This is a double replacement (double displacement) reaction.
In a double replacement reaction, the cations in two compounds switch places. The generic reaction is:
One of the products of a double replacement reaction must be water (neutralization), an insoluble gas (such as
When the aqueous
We can find out which product is the precipitate by consulting a solubility table like the one below. We can see that compounds containing alkali metal cations, such as
The entire equation with physical states included is:
We can use a down arrow to show that the solid is a precipitate.