Home > Chemistry > Double Replacement Reactions

What is a double replacement reaction?

Answer 1

Noah Aldrich

A double replacement reaction occurs between two ionic compounds and produces two new ionic compounds as products.

An example is:
#FeCl_3(aq) + NaOH(aq) -> Fe(OH)_3(s) + NaCl(aq)

Positive ions: #Fe^(3+) and Na^+#
Negative ions: #Cl^- and OH^-#

Note that positive ions must pair with negative ions in compounds!

Here is a video which discusses this reaction in more detail.

Video from: Noel Pauller

Hope this helps!

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Jeremiah Adams

A double replacement reaction is a type of chemical reaction that happens when two ionic compounds in an aqueous solution exchange ions to form two new compounds. The general form of a double replacement reaction is as follows: AB + CD -> AD + CB.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.