SINGLE DISPLACEMENT
REACTION
A single-displacement
reaction, also known as a single-
replacement reaction, is a type of
chemical reaction where an element
replaces another element from a
compound.
A+BC
Here, A replaces B in the compound BC.
B+AC
METALS AND NONMETALS
A more reactive metal
replaces a less reactive metal.
A more reactive nonmetal
replaces a less reactive
nonmetal.
In the periodic table, we can see
where the metals and nonmetals are
located. The metals are located on
the left side of the stairs and the
nonmetals are located on the right
side of the stairs.
METALS
NONMETALS
ACTIVITY SERIES OF
METALS AND NONMETALS
The more reactive
element takes the place or
replace the less reactive
element in a compound.
ACTIVITY SERIES OF METALS
AND HYDROGEN
MOST REACTIVE LEAST REACTIVE
ACTIVITY SERIES OF
NONMETALS
MOST REACTIVE LEAST REACTIVE
HOW TO COMPLETE A
SINGLE DISPLACEMENT
REACTION
DETERMINE IF THE
REACTION WILL OCCUR.
The reaction will only
proceed if the element
that replaces the original
element is more reactive.
Can Cl replace K? or Br?
Cl2+KBr
? ?
Cl is a nonmetal element and K is a metal
element. They are not replaceable.
Take note: The replacement is for metals to
metals and nonmetals to nonmetals only.
Cl2+KBr
? ?
Let’s take a look on their activity
series.
MOST REACTIVE LEAST REACTIVE
DETERMINE THE
PRODUCTS. The
product is when
the elements are
already replaced.
Cl2+KBr
Br2+KCl
DISTRIBUTE THE
ELEMENTS. Distribute
the elements in a
compound. Before and
after you replaced
them.
Cl2 + KBr
2 Cl + 1 K
1 Br
Br2 + KCl
2 Br + 1 K
1 Cl
COMBINE THE
ELEMENTS YOU
DISTRIBUTED (STEP
3). Add the distributed
number of elements
the final reaction.
Cl2 + KBr
2 Cl 1 K
1 Br
2Cl 2KBr
Br2 + KCl
2 Br 1 K
1 Cl
2Br 2KCl
2Cl 2KBr
2Br 2KCl
DISTRIBUTE THE
FINAL
REACTION.
Distribute the way
you distribute
3).
2Cl 2KBr
2 Cl 2 K
2 Br
2Br 2KCl
2 Br 2 K
2 Cl
DO YOU
HAVE ANY
REACTIONS?

SINGLE DISPLACEMENT REACTION